./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8 --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 cf530681c562daa6fa9ab5223cf4d9c859dac38d ............................................................................................................................................ 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8 --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 cf530681c562daa6fa9ab5223cf4d9c859dac38d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 06:44:17,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:17,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:17,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:17,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:17,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:17,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:17,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:17,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:17,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:17,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:17,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:17,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:17,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:17,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:17,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:17,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:17,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:17,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:17,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:17,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:17,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:17,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:17,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:17,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:17,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:17,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:17,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:17,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:17,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:17,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:17,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:17,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:17,797 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:17,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:17,799 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:17,800 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:17,800 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:17,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:17,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:17,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:17,803 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:44:17,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:17,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:17,831 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:17,831 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:17,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:17,832 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:17,832 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:44:17,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:17,832 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:17,832 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:44:17,833 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:44:17,833 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:17,833 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:44:17,833 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:44:17,833 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:44:17,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:17,834 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:17,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:44:17,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:17,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:17,835 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:17,835 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:17,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:17,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:17,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:17,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:17,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:17,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:17,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:17,839 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2021-10-13 06:44:18,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:18,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:18,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:18,092 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:18,092 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:18,093 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-10-13 06:44:18,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/84d19cd9d/d5fb71fc33e44bc89f1da06c91ac933a/FLAGbf682c004 [2021-10-13 06:44:18,703 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:18,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-10-13 06:44:18,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/84d19cd9d/d5fb71fc33e44bc89f1da06c91ac933a/FLAGbf682c004 [2021-10-13 06:44:19,000 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/84d19cd9d/d5fb71fc33e44bc89f1da06c91ac933a [2021-10-13 06:44:19,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:19,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:19,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:19,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:19,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:19,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b69715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19, skipping insertion in model container [2021-10-13 06:44:19,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:19" (1/1) ... [2021-10-13 06:44:19,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:19,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:19,435 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17035,17048] [2021-10-13 06:44:19,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:19,449 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) [2021-10-13 06:44:19,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e134824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:19, skipping insertion in model container [2021-10-13 06:44:19,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:19,450 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:44:19,452 INFO L168 Benchmark]: Toolchain (without parser) took 446.85 ms. Allocated memory is still 138.4 MB. Free memory was 104.2 MB in the beginning and 111.8 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:19,453 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 38.6 MB in the beginning and 38.6 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:19,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 438.20 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 111.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:19,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 38.6 MB in the beginning and 38.6 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 438.20 ms. Allocated memory is still 138.4 MB. Free memory was 104.0 MB in the beginning and 111.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 454]: 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-4e77c04 [2021-10-13 06:44:21,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:44:21,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:44:21,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:44:21,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:44:21,685 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:44:21,688 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:44:21,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:44:21,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:44:21,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:44:21,709 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:44:21,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:44:21,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:44:21,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:44:21,717 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:44:21,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:44:21,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:44:21,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:44:21,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:44:21,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:44:21,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:44:21,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:44:21,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:44:21,744 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:44:21,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:44:21,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:44:21,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:44:21,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:44:21,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:44:21,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:44:21,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:44:21,759 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:44:21,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:44:21,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:44:21,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:44:21,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:44:21,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:44:21,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:44:21,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:44:21,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:44:21,768 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:44:21,769 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:44:21,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:44:21,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:44:21,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:44:21,823 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:44:21,823 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:44:21,824 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:44:21,824 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:44:21,824 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:44:21,824 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:44:21,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:44:21,827 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:44:21,827 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:44:21,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:44:21,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:44:21,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:44:21,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:44:21,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:44:21,829 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:44:21,829 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:44:21,829 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:44:21,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:44:21,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:44:21,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:44:21,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:44:21,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:44:21,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:44:21,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:21,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:44:21,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:44:21,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:44:21,832 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:44:21,832 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:44:21,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:44:21,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:44:21,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:44:21,833 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf530681c562daa6fa9ab5223cf4d9c859dac38d [2021-10-13 06:44:22,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:44:22,260 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:44:22,262 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:44:22,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:44:22,264 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:44:22,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-10-13 06:44:22,342 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/b0d1833eb/f1ce10d2ce5a47d7a8751ef50c6d6b14/FLAG7d22b933d [2021-10-13 06:44:22,887 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:44:22,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c [2021-10-13 06:44:22,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/b0d1833eb/f1ce10d2ce5a47d7a8751ef50c6d6b14/FLAG7d22b933d [2021-10-13 06:44:23,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/data/b0d1833eb/f1ce10d2ce5a47d7a8751ef50c6d6b14 [2021-10-13 06:44:23,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:44:23,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:44:23,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:23,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:44:23,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:44:23,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:23,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a10be5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23, skipping insertion in model container [2021-10-13 06:44:23,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:23,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:44:23,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:23,658 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17035,17048] [2021-10-13 06:44:23,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:23,700 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:44:23,711 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:44:23,797 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17035,17048] [2021-10-13 06:44:23,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:23,813 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:44:23,927 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_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/sv-benchmarks/c/product-lines/minepump_spec3_product12.cil.c[17035,17048] [2021-10-13 06:44:23,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:44:23,951 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:44:23,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23 WrapperNode [2021-10-13 06:44:23,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:44:23,953 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:23,953 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:44:23,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:44:23,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:23,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:44:24,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:44:24,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:44:24,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:44:24,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:44:24,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:44:24,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:44:24,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:44:24,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (1/1) ... [2021-10-13 06:44:24,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:44:24,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:44:24,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:44:24,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:44:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:44:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:44:24,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:44:24,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:44:26,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:44:26,429 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-10-13 06:44:26,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:26 BoogieIcfgContainer [2021-10-13 06:44:26,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:44:26,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:44:26,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:44:26,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:44:26,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:44:23" (1/3) ... [2021-10-13 06:44:26,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6d39da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:26, skipping insertion in model container [2021-10-13 06:44:26,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:44:23" (2/3) ... [2021-10-13 06:44:26,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d6d39da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:44:26, skipping insertion in model container [2021-10-13 06:44:26,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:26" (3/3) ... [2021-10-13 06:44:26,440 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2021-10-13 06:44:26,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:44:26,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 06:44:26,494 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:44:26,499 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, mConcurrency=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 [2021-10-13 06:44:26,499 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 06:44:26,512 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 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) [2021-10-13 06:44:26,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 06:44:26,517 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:26,518 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:26,519 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:26,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:26,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2021-10-13 06:44:26,537 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:26,537 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143924907] [2021-10-13 06:44:26,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:26,538 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:26,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:26,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:26,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:44:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:26,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:44:26,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:26,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:26,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:26,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:26,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143924907] [2021-10-13 06:44:26,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143924907] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:26,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:26,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:44:26,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904536885] [2021-10-13 06:44:26,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:44:26,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:26,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:44:26,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:44:26,968 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 states have internal predecessors, (96), 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) [2021-10-13 06:44:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:27,001 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2021-10-13 06:44:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:44:27,003 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 [2021-10-13 06:44:27,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:27,014 INFO L225 Difference]: With dead ends: 124 [2021-10-13 06:44:27,014 INFO L226 Difference]: Without dead ends: 61 [2021-10-13 06:44:27,017 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 [2021-10-13 06:44:27,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-13 06:44:27,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-13 06:44:27,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 60 states have internal predecessors, (84), 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) [2021-10-13 06:44:27,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2021-10-13 06:44:27,062 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2021-10-13 06:44:27,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:27,063 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2021-10-13 06:44:27,063 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) [2021-10-13 06:44:27,063 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2021-10-13 06:44:27,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 06:44:27,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:27,065 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:44:27,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:27,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,277 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2021-10-13 06:44:27,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:27,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055256260] [2021-10-13 06:44:27,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:27,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:27,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:27,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:44:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:27,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:27,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:27,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:27,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:27,642 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:27,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055256260] [2021-10-13 06:44:27,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055256260] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:27,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:27,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:44:27,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534475287] [2021-10-13 06:44:27,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:27,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:27,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:27,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:27,646 INFO L87 Difference]: Start difference. First operand 61 states and 84 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) [2021-10-13 06:44:27,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:27,658 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2021-10-13 06:44:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:44:27,659 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 [2021-10-13 06:44:27,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:27,660 INFO L225 Difference]: With dead ends: 61 [2021-10-13 06:44:27,660 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 06:44:27,664 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:27,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 06:44:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 06:44:27,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 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) [2021-10-13 06:44:27,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-10-13 06:44:27,680 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2021-10-13 06:44:27,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:27,681 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-10-13 06:44:27,681 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) [2021-10-13 06:44:27,681 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-10-13 06:44:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:44:27,682 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:27,685 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] [2021-10-13 06:44:27,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:27,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,886 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:27,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2021-10-13 06:44:27,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:27,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886691866] [2021-10-13 06:44:27,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:27,888 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:27,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:27,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:27,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:44:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:28,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:44:28,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:28,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:28,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:28,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:28,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886691866] [2021-10-13 06:44:28,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886691866] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:28,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:28,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:44:28,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034799476] [2021-10-13 06:44:28,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:44:28,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:44:28,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:28,268 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 06:44:28,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:28,338 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2021-10-13 06:44:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:44:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 [2021-10-13 06:44:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:28,341 INFO L225 Difference]: With dead ends: 106 [2021-10-13 06:44:28,341 INFO L226 Difference]: Without dead ends: 81 [2021-10-13 06:44:28,342 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:44:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-13 06:44:28,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2021-10-13 06:44:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 51 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:44:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2021-10-13 06:44:28,358 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2021-10-13 06:44:28,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:28,359 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-13 06:44:28,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-13 06:44:28,360 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-10-13 06:44:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:44:28,362 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:28,362 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] [2021-10-13 06:44:28,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:28,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:28,576 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:28,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:28,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2021-10-13 06:44:28,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:28,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496973567] [2021-10-13 06:44:28,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:28,578 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:28,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:28,579 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:28,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:44:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:44:28,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:44:28,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:44:28,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:28,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:44:28,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:44:28,985 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:44:28,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496973567] [2021-10-13 06:44:28,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496973567] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:44:28,986 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:44:28,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 06:44:28,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496810839] [2021-10-13 06:44:28,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:44:28,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:44:28,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:44:28,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:44:28,987 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-10-13 06:44:29,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:44:29,304 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2021-10-13 06:44:29,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 06:44:29,304 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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 [2021-10-13 06:44:29,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:44:29,310 INFO L225 Difference]: With dead ends: 506 [2021-10-13 06:44:29,311 INFO L226 Difference]: Without dead ends: 460 [2021-10-13 06:44:29,312 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:44:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-10-13 06:44:29,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2021-10-13 06:44:29,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.449612403100775) internal successors, (187), 129 states have internal predecessors, (187), 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) [2021-10-13 06:44:29,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2021-10-13 06:44:29,339 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2021-10-13 06:44:29,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:44:29,339 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2021-10-13 06:44:29,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 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) [2021-10-13 06:44:29,340 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2021-10-13 06:44:29,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 06:44:29,341 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:44:29,341 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] [2021-10-13 06:44:29,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:29,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:29,553 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:44:29,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:44:29,554 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2021-10-13 06:44:29,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:44:29,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281339766] [2021-10-13 06:44:29,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:44:29,555 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:44:29,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:44:29,556 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:44:29,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:44:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:30,556 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:44:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:44:31,934 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:44:31,934 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:44:31,935 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:31,936 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:31,937 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:44:31,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:44:32,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:44:32,159 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:44:32,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:44:32 BoogieIcfgContainer [2021-10-13 06:44:32,275 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:44:32,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:44:32,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:44:32,276 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:44:32,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:44:26" (3/4) ... [2021-10-13 06:44:32,280 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:44:32,398 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:44:32,398 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:44:32,400 INFO L168 Benchmark]: Toolchain (without parser) took 9187.31 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 49.9 MB in the beginning and 36.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 43.3 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,400 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:44:32,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.75 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 40.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.29 ms. Allocated memory is still 69.2 MB. Free memory was 40.0 MB in the beginning and 37.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,401 INFO L168 Benchmark]: Boogie Preprocessor took 58.87 ms. Allocated memory is still 69.2 MB. Free memory was 37.2 MB in the beginning and 35.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,402 INFO L168 Benchmark]: RCFGBuilder took 2341.12 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 35.1 MB in the beginning and 61.5 MB in the end (delta: -26.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,402 INFO L168 Benchmark]: TraceAbstraction took 5841.48 ms. Allocated memory is still 100.7 MB. Free memory was 61.0 MB in the beginning and 46.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,403 INFO L168 Benchmark]: Witness Printer took 122.33 ms. Allocated memory is still 100.7 MB. Free memory was 46.5 MB in the beginning and 36.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:44:32,405 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 69.2 MB. Free memory was 49.0 MB in the beginning and 49.0 MB in the end (delta: 54.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.75 ms. Allocated memory is still 69.2 MB. Free memory was 49.6 MB in the beginning and 40.0 MB in the end (delta: 9.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.29 ms. Allocated memory is still 69.2 MB. Free memory was 40.0 MB in the beginning and 37.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.87 ms. Allocated memory is still 69.2 MB. Free memory was 37.2 MB in the beginning and 35.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2341.12 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 35.1 MB in the beginning and 61.5 MB in the end (delta: -26.4 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5841.48 ms. Allocated memory is still 100.7 MB. Free memory was 61.0 MB in the beginning and 46.8 MB in the end (delta: 14.2 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Witness Printer took 122.33 ms. Allocated memory is still 100.7 MB. Free memory was 46.5 MB in the beginning and 36.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 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: 892]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L160] int pumpRunning = 0; [L161] int systemActive = 1; [L308] int waterLevel = 1; [L309] int methaneLevelCritical = 0; [L595] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L792] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L865] int retValue_acc ; [L866] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L872] tmp = valid_product() [L874] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L87] int splverifierCounter ; [L88] int tmp ; [L89] int tmp___0 ; [L90] int tmp___1 ; [L91] int tmp___2 ; [L94] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L98] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L104] tmp = __VERIFIER_nondet_int() [L106] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L326] COND TRUE waterLevel < 2 [L327] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] tmp___0 = __VERIFIER_nondet_int() [L116] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L124] tmp___2 = __VERIFIER_nondet_int() [L126] COND TRUE \read(tmp___2) [L303] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L347] int retValue_acc ; [L350] retValue_acc = methaneLevelCritical [L351] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L379] int retValue_acc ; [L382] retValue_acc = waterLevel [L383] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 892]: 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: 892]: 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, 65 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5665.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 492.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 240 SDtfs, 583 SDslu, 463 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 156.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 152.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.0ms AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 106.6ms SsaConstructionTime, 1319.0ms SatisfiabilityAnalysisTime, 734.8ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 4 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2021-10-13 06:44:32,457 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fb2ea1-53d6-43f7-a80e-b8a1df6e8d70/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...