./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE --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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a ............................................................................................................................................ 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_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE --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 e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-e943c26 [2021-10-24 10:02:19,460 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:02:19,463 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:02:19,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:02:19,509 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:02:19,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:02:19,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:02:19,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:02:19,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:02:19,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:02:19,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:02:19,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:02:19,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:02:19,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:02:19,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:02:19,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:02:19,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:02:19,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:02:19,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:02:19,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:02:19,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:02:19,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:02:19,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:02:19,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:02:19,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:02:19,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:02:19,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:02:19,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:02:19,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:02:19,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:02:19,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:02:19,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:02:19,602 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:02:19,604 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:02:19,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:02:19,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:02:19,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:02:19,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:02:19,609 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:02:19,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:02:19,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:02:19,612 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:02:19,660 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:02:19,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:02:19,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:02:19,662 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:02:19,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:02:19,662 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:02:19,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:02:19,663 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:02:19,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:02:19,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:02:19,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:02:19,664 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:02:19,665 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:02:19,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:02:19,665 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:02:19,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:02:19,667 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:02:19,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:02:19,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:02:19,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:02:19,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:02:19,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:02:19,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:02:19,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:02:19,669 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:02:19,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:02:19,670 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:02:19,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:02:19,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:02:19,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:02:19,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:02:19,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:02:19,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:02:19,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:02:19,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:02:19,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:02:19,673 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:02:19,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:02:19,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:02:19,674 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_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-10-24 10:02:19,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:02:20,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:02:20,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:02:20,026 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:02:20,027 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:02:20,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-24 10:02:20,113 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/3358d1ac9/9e56bb8560a94b6e8b198d7765d81027/FLAGf572abda3 [2021-10-24 10:02:20,765 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:02:20,766 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-24 10:02:20,793 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/3358d1ac9/9e56bb8560a94b6e8b198d7765d81027/FLAGf572abda3 [2021-10-24 10:02:21,012 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/3358d1ac9/9e56bb8560a94b6e8b198d7765d81027 [2021-10-24 10:02:21,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:02:21,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:02:21,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:21,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:02:21,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:02:21,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:21" (1/1) ... [2021-10-24 10:02:21,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bb3bf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:21, skipping insertion in model container [2021-10-24 10:02:21,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:21" (1/1) ... [2021-10-24 10:02:21,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:02:21,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:02:21,440 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-24 10:02:21,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:21,517 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) [2021-10-24 10:02:21,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ae9b2ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:21, skipping insertion in model container [2021-10-24 10:02:21,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:21,519 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:02:21,522 INFO L168 Benchmark]: Toolchain (without parser) took 504.32 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 45.0 MB in the beginning and 72.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:21,523 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:02:21,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 494.46 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 44.7 MB in the beginning and 72.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:21,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 81.8 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 494.46 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 44.7 MB in the beginning and 72.2 MB in the end (delta: -27.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 599]: 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 0.2.1-dev-e943c26 [2021-10-24 10:02:23,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:02:23,988 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:02:24,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:02:24,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:02:24,046 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:02:24,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:02:24,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:02:24,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:02:24,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:02:24,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:02:24,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:02:24,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:02:24,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:02:24,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:02:24,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:02:24,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:02:24,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:02:24,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:02:24,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:02:24,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:02:24,091 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:02:24,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:02:24,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:02:24,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:02:24,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:02:24,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:02:24,108 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:02:24,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:02:24,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:02:24,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:02:24,111 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:02:24,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:02:24,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:02:24,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:02:24,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:02:24,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:02:24,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:02:24,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:02:24,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:02:24,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:02:24,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:02:24,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:02:24,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:02:24,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:02:24,171 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:02:24,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:02:24,171 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:02:24,171 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:02:24,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:02:24,172 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:02:24,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:02:24,174 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:02:24,174 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:02:24,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:02:24,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:02:24,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:02:24,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:02:24,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:02:24,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:02:24,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:02:24,176 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:02:24,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:02:24,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:02:24,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:02:24,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:02:24,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:02:24,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:02:24,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:02:24,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:02:24,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:02:24,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:02:24,179 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:02:24,179 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:02:24,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:02:24,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:02:24,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:02:24,180 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_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2021-10-24 10:02:24,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:02:24,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:02:24,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:02:24,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:02:24,649 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:02:24,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-24 10:02:24,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/a753312bf/8ca7fdfa2ec14dc89cf1eedd44371a8d/FLAGab453b262 [2021-10-24 10:02:25,270 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:02:25,271 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2021-10-24 10:02:25,284 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/a753312bf/8ca7fdfa2ec14dc89cf1eedd44371a8d/FLAGab453b262 [2021-10-24 10:02:25,582 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/data/a753312bf/8ca7fdfa2ec14dc89cf1eedd44371a8d [2021-10-24 10:02:25,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:02:25,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:02:25,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:25,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:02:25,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:02:25,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:25" (1/1) ... [2021-10-24 10:02:25,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cff6dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:25, skipping insertion in model container [2021-10-24 10:02:25,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:02:25" (1/1) ... [2021-10-24 10:02:25,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:02:25,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:02:26,019 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-24 10:02:26,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:26,130 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:02:26,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:02:26,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-24 10:02:26,254 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:26,269 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:02:26,328 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2021-10-24 10:02:26,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:02:26,367 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:02:26,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26 WrapperNode [2021-10-24 10:02:26,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:02:26,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:02:26,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:02:26,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:02:26,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:02:26,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:02:26,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:02:26,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:02:26,462 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:02:26,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:02:26,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:02:26,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:02:26,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (1/1) ... [2021-10-24 10:02:26,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:02:26,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:02:26,577 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:02:26,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:02:26,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:02:26,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:02:26,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:02:26,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:02:28,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:02:28,924 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-24 10:02:28,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:28 BoogieIcfgContainer [2021-10-24 10:02:28,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:02:28,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:02:28,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:02:28,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:02:28,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:02:25" (1/3) ... [2021-10-24 10:02:28,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c49f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:28, skipping insertion in model container [2021-10-24 10:02:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:02:26" (2/3) ... [2021-10-24 10:02:28,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c49f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:02:28, skipping insertion in model container [2021-10-24 10:02:28,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:28" (3/3) ... [2021-10-24 10:02:28,935 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2021-10-24 10:02:28,940 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:02:28,940 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:02:28,988 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:02:28,994 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:02:28,994 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:02:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:29,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:02:29,016 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:29,016 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:02:29,017 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:29,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:29,023 INFO L82 PathProgramCache]: Analyzing trace with hash 625606487, now seen corresponding path program 1 times [2021-10-24 10:02:29,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:29,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802934927] [2021-10-24 10:02:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:29,037 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:29,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:29,040 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:29,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:02:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:02:29,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:02:29,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:02:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:29,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:02:29,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:29,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:02:29,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802934927] [2021-10-24 10:02:29,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1802934927] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:02:29,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:02:29,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:02:29,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026947567] [2021-10-24 10:02:29,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:02:29,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:02:29,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:02:29,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:02:29,460 INFO L87 Difference]: Start difference. First operand has 86 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 85 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:29,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:02:29,490 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-24 10:02:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:02:29,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:02:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:02:29,502 INFO L225 Difference]: With dead ends: 166 [2021-10-24 10:02:29,502 INFO L226 Difference]: Without dead ends: 82 [2021-10-24 10:02:29,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:02:29,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-24 10:02:29,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-10-24 10:02:29,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 79 states have (on average 1.481012658227848) internal successors, (117), 81 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 117 transitions. [2021-10-24 10:02:29,544 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 117 transitions. Word has length 18 [2021-10-24 10:02:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:02:29,545 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 117 transitions. [2021-10-24 10:02:29,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 117 transitions. [2021-10-24 10:02:29,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:02:29,546 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:29,547 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:02:29,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:29,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:29,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:29,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:29,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1306218461, now seen corresponding path program 1 times [2021-10-24 10:02:29,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:29,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065024607] [2021-10-24 10:02:29,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:29,762 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:29,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:29,763 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:29,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:02:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:02:29,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:02:29,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:02:30,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:30,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:02:30,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:30,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:02:30,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065024607] [2021-10-24 10:02:30,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065024607] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:02:30,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:02:30,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:02:30,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105896025] [2021-10-24 10:02:30,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:02:30,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:02:30,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:02:30,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:02:30,117 INFO L87 Difference]: Start difference. First operand 82 states and 117 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:02:30,145 INFO L93 Difference]: Finished difference Result 82 states and 117 transitions. [2021-10-24 10:02:30,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:02:30,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:02:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:02:30,150 INFO L225 Difference]: With dead ends: 82 [2021-10-24 10:02:30,150 INFO L226 Difference]: Without dead ends: 38 [2021-10-24 10:02:30,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:02:30,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-24 10:02:30,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-24 10:02:30,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 37 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-24 10:02:30,163 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-24 10:02:30,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:02:30,163 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-24 10:02:30,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-24 10:02:30,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:02:30,166 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:30,172 INFO L512 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] [2021-10-24 10:02:30,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:30,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:30,384 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:30,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:30,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810196, now seen corresponding path program 1 times [2021-10-24 10:02:30,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:30,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445935394] [2021-10-24 10:02:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:30,386 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:30,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:30,387 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:30,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:02:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:02:30,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:02:30,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:02:30,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:30,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:02:30,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:30,792 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:02:30,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445935394] [2021-10-24 10:02:30,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445935394] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:02:30,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:02:30,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:02:30,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124306069] [2021-10-24 10:02:30,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:02:30,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:02:30,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:02:30,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:02:30,795 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:02:30,828 INFO L93 Difference]: Finished difference Result 127 states and 187 transitions. [2021-10-24 10:02:30,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:02:30,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:02:30,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:02:30,834 INFO L225 Difference]: With dead ends: 127 [2021-10-24 10:02:30,834 INFO L226 Difference]: Without dead ends: 95 [2021-10-24 10:02:30,835 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:02:30,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-24 10:02:30,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 59. [2021-10-24 10:02:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.4827586206896552) internal successors, (86), 58 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 86 transitions. [2021-10-24 10:02:30,854 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 86 transitions. Word has length 24 [2021-10-24 10:02:30,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:02:30,854 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 86 transitions. [2021-10-24 10:02:30,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:30,855 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 86 transitions. [2021-10-24 10:02:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-24 10:02:30,856 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:30,856 INFO L512 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] [2021-10-24 10:02:30,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:31,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:31,065 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:31,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:31,065 INFO L82 PathProgramCache]: Analyzing trace with hash -718050600, now seen corresponding path program 1 times [2021-10-24 10:02:31,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:31,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1747205520] [2021-10-24 10:02:31,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:31,067 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:31,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:31,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:02:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:02:31,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:02:31,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:02:31,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:31,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:02:31,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:31,433 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:02:31,433 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1747205520] [2021-10-24 10:02:31,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1747205520] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:02:31,434 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:02:31,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:02:31,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005664357] [2021-10-24 10:02:31,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:02:31,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:02:31,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:02:31,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:02:31,436 INFO L87 Difference]: Start difference. First operand 59 states and 86 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:02:31,513 INFO L93 Difference]: Finished difference Result 135 states and 199 transitions. [2021-10-24 10:02:31,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:02:31,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-24 10:02:31,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:02:31,516 INFO L225 Difference]: With dead ends: 135 [2021-10-24 10:02:31,517 INFO L226 Difference]: Without dead ends: 82 [2021-10-24 10:02:31,517 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:02:31,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-10-24 10:02:31,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2021-10-24 10:02:31,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.4430379746835442) internal successors, (114), 79 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:31,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2021-10-24 10:02:31,535 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 25 [2021-10-24 10:02:31,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:02:31,536 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2021-10-24 10:02:31,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2021-10-24 10:02:31,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:02:31,540 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:31,540 INFO L512 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] [2021-10-24 10:02:31,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:31,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:31,766 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:31,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:31,767 INFO L82 PathProgramCache]: Analyzing trace with hash -979667415, now seen corresponding path program 1 times [2021-10-24 10:02:31,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:31,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354973019] [2021-10-24 10:02:31,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:31,768 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:31,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:31,769 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:31,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:02:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:02:32,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:02:32,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:02:32,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:32,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:02:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:02:32,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:02:32,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354973019] [2021-10-24 10:02:32,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354973019] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:02:32,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:02:32,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:02:32,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948035930] [2021-10-24 10:02:32,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:02:32,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:02:32,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:02:32,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:02:32,260 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:32,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:02:32,625 INFO L93 Difference]: Finished difference Result 840 states and 1240 transitions. [2021-10-24 10:02:32,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:02:32,626 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:02:32,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:02:32,631 INFO L225 Difference]: With dead ends: 840 [2021-10-24 10:02:32,631 INFO L226 Difference]: Without dead ends: 766 [2021-10-24 10:02:32,632 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 142.1ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:02:32,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-10-24 10:02:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 209. [2021-10-24 10:02:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 1.4134615384615385) internal successors, (294), 208 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 294 transitions. [2021-10-24 10:02:32,669 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 294 transitions. Word has length 27 [2021-10-24 10:02:32,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:02:32,669 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 294 transitions. [2021-10-24 10:02:32,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:02:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 294 transitions. [2021-10-24 10:02:32,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:02:32,671 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:02:32,671 INFO L512 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] [2021-10-24 10:02:32,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:32,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:32,884 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:02:32,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:02:32,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1615036139, now seen corresponding path program 1 times [2021-10-24 10:02:32,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:02:32,885 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30934917] [2021-10-24 10:02:32,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:02:32,886 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:02:32,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:02:32,887 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:02:32,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:02:34,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:02:34,398 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:02:35,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:02:35,446 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:02:35,446 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:02:35,463 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:02:35,465 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:02:35,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:02:35,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:02:35,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:02:35,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:02:35,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:02:35 BoogieIcfgContainer [2021-10-24 10:02:35,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:02:35,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:02:35,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:02:35,815 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:02:35,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:02:28" (3/4) ... [2021-10-24 10:02:35,819 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:02:35,937 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:02:35,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:02:35,939 INFO L168 Benchmark]: Toolchain (without parser) took 10352.85 ms. Allocated memory was 56.6 MB in the beginning and 96.5 MB in the end (delta: 39.8 MB). Free memory was 33.0 MB in the beginning and 70.0 MB in the end (delta: -37.0 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,939 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 56.6 MB. Free memory is still 36.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:02:35,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.87 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.7 MB in the beginning and 45.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.72 ms. Allocated memory is still 77.6 MB. Free memory was 45.8 MB in the beginning and 42.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,941 INFO L168 Benchmark]: Boogie Preprocessor took 71.28 ms. Allocated memory is still 77.6 MB. Free memory was 42.6 MB in the beginning and 40.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,941 INFO L168 Benchmark]: RCFGBuilder took 2377.44 ms. Allocated memory is still 77.6 MB. Free memory was 59.6 MB in the beginning and 55.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,942 INFO L168 Benchmark]: TraceAbstraction took 6886.63 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 55.0 MB in the beginning and 32.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,942 INFO L168 Benchmark]: Witness Printer took 122.63 ms. Allocated memory is still 96.5 MB. Free memory was 32.0 MB in the beginning and 70.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-24 10:02:35,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 56.6 MB. Free memory is still 36.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 777.87 ms. Allocated memory was 56.6 MB in the beginning and 77.6 MB in the end (delta: 21.0 MB). Free memory was 32.7 MB in the beginning and 45.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.72 ms. Allocated memory is still 77.6 MB. Free memory was 45.8 MB in the beginning and 42.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.28 ms. Allocated memory is still 77.6 MB. Free memory was 42.6 MB in the beginning and 40.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2377.44 ms. Allocated memory is still 77.6 MB. Free memory was 59.6 MB in the beginning and 55.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 27.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6886.63 ms. Allocated memory was 77.6 MB in the beginning and 96.5 MB in the end (delta: 18.9 MB). Free memory was 55.0 MB in the beginning and 32.0 MB in the end (delta: 23.0 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. * Witness Printer took 122.63 ms. Allocated memory is still 96.5 MB. Free memory was 32.0 MB in the beginning and 70.0 MB in the end (delta: -38.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 566]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L410] int retValue_acc ; [L411] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] COND TRUE waterLevel < 2 [L452] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L99] tmp___1 = __VERIFIER_nondet_int() [L101] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L286] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L313] tmp___0 = getWaterLevel() [L315] COND TRUE tmp___0 == 2 [L219] int retValue_acc ; [L222] retValue_acc = pumpRunning [L223] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L317] tmp___1 = isPumpRunning() [L319] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L566] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 566]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 566]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 86 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6685.0ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 19.4ms, AutomataDifference: 599.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 364 SDtfs, 831 SDslu, 707 SDs, 0 SdLazy, 130 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 183.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 165.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=209occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 107.6ms AutomataMinimizationTime, 5 MinimizatonAttempts, 595 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 155.3ms SsaConstructionTime, 1973.5ms SatisfiabilityAnalysisTime, 983.1ms InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 422 SizeOfPredicates, 4 NumberOfNonLiveVariables, 994 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [2021-10-24 10:02:35,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f01e3eb-0796-4985-be48-345196415bed/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...