./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 ............................................................................................................................................ 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:50:48,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:50:48,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:50:48,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:50:48,674 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:50:48,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:50:48,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:50:48,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:50:48,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:50:48,693 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:50:48,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:50:48,696 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:50:48,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:50:48,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:50:48,702 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:50:48,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:50:48,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:50:48,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:50:48,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:50:48,724 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:50:48,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:50:48,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:50:48,731 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:50:48,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:50:48,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:50:48,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:50:48,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:50:48,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:50:48,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:50:48,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:50:48,749 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:50:48,750 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:50:48,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:50:48,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:50:48,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:50:48,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:50:48,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:50:48,757 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:50:48,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:50:48,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:50:48,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:50:48,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:50:48,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:50:48,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:50:48,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:50:48,808 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:50:48,808 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:50:48,809 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:50:48,809 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:50:48,809 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:50:48,815 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:50:48,816 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:50:48,817 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:50:48,817 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:50:48,818 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:50:48,818 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:50:48,818 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:50:48,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:50:48,819 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:50:48,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:50:48,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:50:48,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:50:48,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:50:48,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:50:48,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:50:48,821 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:50:48,821 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:50:48,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:50:48,822 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:50:48,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:50:48,822 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:50:48,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:50:48,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:50:48,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:50:48,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:50:48,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:50:48,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:50:48,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:50:48,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:50:48,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:50:48,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:50:48,826 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2021-10-24 09:50:49,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:50:49,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:50:49,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:50:49,112 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:50:49,113 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:50:49,114 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-24 09:50:49,185 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/1736d399b/3f527441fee74adfa5b6aad87589dbdc/FLAG77c86efc7 [2021-10-24 09:50:49,749 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:50:49,750 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-24 09:50:49,762 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/1736d399b/3f527441fee74adfa5b6aad87589dbdc/FLAG77c86efc7 [2021-10-24 09:50:50,107 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/1736d399b/3f527441fee74adfa5b6aad87589dbdc [2021-10-24 09:50:50,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:50:50,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:50:50,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:50:50,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:50:50,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:50:50,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:50:50" (1/1) ... [2021-10-24 09:50:50,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d8fdea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:50, skipping insertion in model container [2021-10-24 09:50:50,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:50:50" (1/1) ... [2021-10-24 09:50:50,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:50:50,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:50:50,480 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-24 09:50:50,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:50:50,501 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 09:50:50,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ee011e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:50, skipping insertion in model container [2021-10-24 09:50:50,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:50:50,509 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:50:50,512 INFO L168 Benchmark]: Toolchain (without parser) took 398.84 ms. Allocated memory is still 111.1 MB. Free memory was 78.2 MB in the beginning and 82.3 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:50:50,512 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:50:50,514 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.53 ms. Allocated memory is still 111.1 MB. Free memory was 77.9 MB in the beginning and 82.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:50:50,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 64.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 389.53 ms. Allocated memory is still 111.1 MB. Free memory was 77.9 MB in the beginning and 82.3 MB in the end (delta: -4.5 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: 645]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:50:52,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:50:52,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:50:52,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:50:52,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:50:52,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:50:52,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:50:52,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:50:52,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:50:52,716 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:50:52,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:50:52,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:50:52,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:50:52,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:50:52,725 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:50:52,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:50:52,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:50:52,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:50:52,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:50:52,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:50:52,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:50:52,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:50:52,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:50:52,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:50:52,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:50:52,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:50:52,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:50:52,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:50:52,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:50:52,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:50:52,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:50:52,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:50:52,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:50:52,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:50:52,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:50:52,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:50:52,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:50:52,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:50:52,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:50:52,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:50:52,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:50:52,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:50:52,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:50:52,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:50:52,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:50:52,832 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:50:52,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:50:52,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:50:52,833 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:50:52,833 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:50:52,833 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:50:52,835 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:50:52,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:50:52,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:50:52,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:50:52,837 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:50:52,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:50:52,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:50:52,838 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:50:52,838 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:50:52,839 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:50:52,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:50:52,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:50:52,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:50:52,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:50:52,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:50:52,840 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:50:52,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:50:52,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:50:52,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:50:52,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:50:52,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:50:52,842 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:50:52,842 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:50:52,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:50:52,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:50:52,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:50:52,844 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2021-10-24 09:50:53,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:50:53,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:50:53,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:50:53,326 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:50:53,327 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:50:53,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-24 09:50:53,409 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/5525fc7b2/7f96fc8e655443159b03783a49e8fe13/FLAGafebe1080 [2021-10-24 09:50:54,067 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:50:54,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-24 09:50:54,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/5525fc7b2/7f96fc8e655443159b03783a49e8fe13/FLAGafebe1080 [2021-10-24 09:50:54,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/data/5525fc7b2/7f96fc8e655443159b03783a49e8fe13 [2021-10-24 09:50:54,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:50:54,308 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:50:54,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:50:54,312 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:50:54,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:50:54,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:50:54" (1/1) ... [2021-10-24 09:50:54,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49dc5216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:54, skipping insertion in model container [2021-10-24 09:50:54,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:50:54" (1/1) ... [2021-10-24 09:50:54,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:50:54,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:50:54,793 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-24 09:50:54,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:50:54,810 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:50:54,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:50:54,933 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-24 09:50:54,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:50:54,947 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:50:55,011 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_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-24 09:50:55,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:50:55,033 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:50:55,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55 WrapperNode [2021-10-24 09:50:55,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:50:55,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:50:55,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:50:55,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:50:55,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:50:55,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:50:55,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:50:55,128 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:50:55,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,185 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:50:55,192 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:50:55,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:50:55,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:50:55,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (1/1) ... [2021-10-24 09:50:55,200 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:50:55,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:50:55,226 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:50:55,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:50:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:50:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:50:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:50:55,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:50:57,625 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:50:57,626 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-24 09:50:57,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:50:57 BoogieIcfgContainer [2021-10-24 09:50:57,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:50:57,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:50:57,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:50:57,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:50:57,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:50:54" (1/3) ... [2021-10-24 09:50:57,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ff57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:50:57, skipping insertion in model container [2021-10-24 09:50:57,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:50:55" (2/3) ... [2021-10-24 09:50:57,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ff57a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:50:57, skipping insertion in model container [2021-10-24 09:50:57,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:50:57" (3/3) ... [2021-10-24 09:50:57,640 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2021-10-24 09:50:57,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:50:57,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 09:50:57,691 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:50:57,697 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 09:50:57,697 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 09:50:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 121 states have (on average 1.56198347107438) internal successors, (189), 124 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:57,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:50:57,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:50:57,727 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:50:57,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:50:57,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:50:57,733 INFO L82 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2021-10-24 09:50:57,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:50:57,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078862834] [2021-10-24 09:50:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:50:57,746 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:50:57,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:50:57,761 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:50:57,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:50:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:50:57,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 09:50:57,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:50:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:58,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:50:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:58,082 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:50:58,083 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078862834] [2021-10-24 09:50:58,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078862834] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:50:58,083 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:50:58,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:50:58,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649784490] [2021-10-24 09:50:58,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:50:58,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:50:58,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:50:58,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:50:58,106 INFO L87 Difference]: Start difference. First operand has 125 states, 121 states have (on average 1.56198347107438) internal successors, (189), 124 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:50:58,136 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2021-10-24 09:50:58,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:50:58,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 09:50:58,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:50:58,148 INFO L225 Difference]: With dead ends: 244 [2021-10-24 09:50:58,148 INFO L226 Difference]: Without dead ends: 121 [2021-10-24 09:50:58,151 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:50:58,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-24 09:50:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-10-24 09:50:58,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.5) internal successors, (177), 120 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2021-10-24 09:50:58,200 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2021-10-24 09:50:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:50:58,200 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2021-10-24 09:50:58,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2021-10-24 09:50:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:50:58,202 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:50:58,202 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:50:58,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:50:58,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:50:58,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:50:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:50:58,416 INFO L82 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2021-10-24 09:50:58,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:50:58,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384900460] [2021-10-24 09:50:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:50:58,417 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:50:58,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:50:58,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:50:58,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:50:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:50:58,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:50:58,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:50:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:58,691 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:50:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:58,743 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:50:58,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384900460] [2021-10-24 09:50:58,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384900460] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:50:58,744 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:50:58,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:50:58,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742761254] [2021-10-24 09:50:58,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:50:58,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:50:58,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:50:58,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:50:58,747 INFO L87 Difference]: Start difference. First operand 121 states and 177 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:50:58,762 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2021-10-24 09:50:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:50:58,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 09:50:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:50:58,764 INFO L225 Difference]: With dead ends: 121 [2021-10-24 09:50:58,764 INFO L226 Difference]: Without dead ends: 51 [2021-10-24 09:50:58,765 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:50:58,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-24 09:50:58,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-24 09:50:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-24 09:50:58,772 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-24 09:50:58,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:50:58,772 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-24 09:50:58,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:58,772 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-24 09:50:58,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:50:58,774 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:50:58,774 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:50:58,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:50:58,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:50:58,986 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:50:58,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:50:58,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2021-10-24 09:50:58,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:50:58,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972040254] [2021-10-24 09:50:58,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:50:58,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:50:58,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:50:58,989 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:50:58,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:50:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:50:59,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:50:59,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:50:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:59,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:50:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:59,386 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:50:59,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972040254] [2021-10-24 09:50:59,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972040254] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:50:59,386 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:50:59,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 09:50:59,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116012845] [2021-10-24 09:50:59,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:50:59,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:50:59,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:50:59,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:50:59,389 INFO L87 Difference]: Start difference. First operand 51 states and 74 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:59,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:50:59,415 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2021-10-24 09:50:59,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:50:59,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 09:50:59,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:50:59,417 INFO L225 Difference]: With dead ends: 166 [2021-10-24 09:50:59,417 INFO L226 Difference]: Without dead ends: 121 [2021-10-24 09:50:59,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:50:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-24 09:50:59,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2021-10-24 09:50:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 71 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:59,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2021-10-24 09:50:59,430 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2021-10-24 09:50:59,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:50:59,431 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2021-10-24 09:50:59,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:50:59,431 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2021-10-24 09:50:59,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:50:59,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:50:59,432 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:50:59,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:50:59,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:50:59,646 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:50:59,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:50:59,646 INFO L82 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2021-10-24 09:50:59,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:50:59,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320590232] [2021-10-24 09:50:59,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:50:59,650 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:50:59,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:50:59,651 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:50:59,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:50:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:50:59,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:50:59,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:50:59,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:50:59,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:00,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:00,033 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:00,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320590232] [2021-10-24 09:51:00,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320590232] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:00,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:00,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:51:00,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557901570] [2021-10-24 09:51:00,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:51:00,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:00,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:51:00,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:51:00,036 INFO L87 Difference]: Start difference. First operand 72 states and 106 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:00,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:00,124 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2021-10-24 09:51:00,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:51:00,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2021-10-24 09:51:00,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:00,129 INFO L225 Difference]: With dead ends: 161 [2021-10-24 09:51:00,129 INFO L226 Difference]: Without dead ends: 95 [2021-10-24 09:51:00,133 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:51:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-24 09:51:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-10-24 09:51:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:00,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2021-10-24 09:51:00,152 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2021-10-24 09:51:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:00,152 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2021-10-24 09:51:00,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:00,153 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2021-10-24 09:51:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 09:51:00,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:00,154 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:00,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:00,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:00,355 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:00,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:00,355 INFO L82 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2021-10-24 09:51:00,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:00,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558546846] [2021-10-24 09:51:00,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:00,356 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:00,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:00,357 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:00,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:51:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:00,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:51:00,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:00,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:00,869 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:00,869 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [558546846] [2021-10-24 09:51:00,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [558546846] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:00,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:00,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 09:51:00,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108113570] [2021-10-24 09:51:00,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:51:00,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:00,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:51:00,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:51:00,871 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:01,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:01,394 INFO L93 Difference]: Finished difference Result 1012 states and 1490 transitions. [2021-10-24 09:51:01,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 09:51:01,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 09:51:01,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:01,401 INFO L225 Difference]: With dead ends: 1012 [2021-10-24 09:51:01,401 INFO L226 Difference]: Without dead ends: 925 [2021-10-24 09:51:01,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 158.8ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 09:51:01,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-10-24 09:51:01,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 236. [2021-10-24 09:51:01,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.4170212765957446) internal successors, (333), 235 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:01,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 333 transitions. [2021-10-24 09:51:01,479 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 333 transitions. Word has length 27 [2021-10-24 09:51:01,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:01,480 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 333 transitions. [2021-10-24 09:51:01,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:01,480 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 333 transitions. [2021-10-24 09:51:01,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:51:01,487 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:01,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:01,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-24 09:51:01,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:01,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:01,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:01,700 INFO L82 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2021-10-24 09:51:01,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:01,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667779255] [2021-10-24 09:51:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:01,702 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:01,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:01,703 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:01,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 09:51:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:51:03,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:51:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:51:04,530 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 09:51:04,530 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:51:04,531 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:51:04,533 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:51:04,534 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:51:04,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:04,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:04,753 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:51:04,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:51:04 BoogieIcfgContainer [2021-10-24 09:51:04,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:51:04,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:51:04,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:51:04,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:51:04,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:50:57" (3/4) ... [2021-10-24 09:51:04,862 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 09:51:04,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 09:51:04,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:51:04,956 INFO L168 Benchmark]: Toolchain (without parser) took 10647.86 ms. Allocated memory was 67.1 MB in the beginning and 104.9 MB in the end (delta: 37.7 MB). Free memory was 47.0 MB in the beginning and 77.9 MB in the end (delta: -30.9 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,957 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:51:04,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.84 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 33.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.22 ms. Allocated memory is still 67.1 MB. Free memory was 33.9 MB in the beginning and 30.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,958 INFO L168 Benchmark]: Boogie Preprocessor took 63.56 ms. Allocated memory is still 67.1 MB. Free memory was 30.1 MB in the beginning and 48.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,959 INFO L168 Benchmark]: RCFGBuilder took 2435.87 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 48.0 MB in the beginning and 59.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,959 INFO L168 Benchmark]: TraceAbstraction took 7229.71 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 48.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,959 INFO L168 Benchmark]: Witness Printer took 95.18 ms. Allocated memory is still 104.9 MB. Free memory was 48.4 MB in the beginning and 77.9 MB in the end (delta: -29.5 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:04,962 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 67.1 MB. Free memory is still 47.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 723.84 ms. Allocated memory is still 67.1 MB. Free memory was 46.7 MB in the beginning and 33.9 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.22 ms. Allocated memory is still 67.1 MB. Free memory was 33.9 MB in the beginning and 30.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 63.56 ms. Allocated memory is still 67.1 MB. Free memory was 30.1 MB in the beginning and 48.0 MB in the end (delta: -17.9 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2435.87 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 48.0 MB in the beginning and 59.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7229.71 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 59.1 MB in the beginning and 48.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * Witness Printer took 95.18 ms. Allocated memory is still 104.9 MB. Free memory was 48.4 MB in the beginning and 77.9 MB in the end (delta: -29.5 MB). Peak memory consumption was 10.9 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: 987]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L176] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L182] tmp = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp___2)) [L208] tmp___1 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L250] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L462] tmp___0 = getWaterLevel() [L464] COND TRUE tmp___0 == 2 [L350] int retValue_acc ; [L353] retValue_acc = pumpRunning [L354] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L466] tmp___1 = isPumpRunning() [L468] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L987] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 987]: 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: 987]: 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, 125 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7060.9ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 24.6ms, AutomataDifference: 738.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 514 SDtfs, 1113 SDslu, 1009 SDs, 0 SdLazy, 182 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 240.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 179.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.2ms AutomataMinimizationTime, 5 MinimizatonAttempts, 740 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 130.1ms SsaConstructionTime, 1743.3ms SatisfiabilityAnalysisTime, 941.0ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 09:51:05,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbd5a01b-6bba-41b8-bd98-1c0d1bbac935/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...