./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd ............................................................................................................................................ 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_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:14,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:14,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:14,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:14,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:14,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:14,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:14,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:14,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:14,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:14,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:14,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:14,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:14,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:14,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:14,690 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:14,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:14,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:14,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:14,715 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:14,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:14,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:14,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:14,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:14,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:14,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:14,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:14,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:14,728 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:14,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:14,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:14,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:14,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:14,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:14,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:14,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:14,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:14,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:14,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:14,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:14,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:14,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:14,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:14,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:14,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:14,797 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:14,797 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:14,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:14,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:14,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:14,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:14,798 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:14,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:14,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:14,800 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:14,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:14,800 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:14,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:14,801 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:14,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:14,801 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:14,802 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:14,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:14,803 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:14,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:14,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:14,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:14,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:14,806 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:14,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:14,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:14,808 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_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd [2021-10-11 02:25:15,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:15,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:15,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:15,084 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:15,087 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:15,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-11 02:25:15,159 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/e3a73f344/acd067c5ef3a4502b5a398661139e86c/FLAG50946861e [2021-10-11 02:25:15,724 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:15,725 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-11 02:25:15,749 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/e3a73f344/acd067c5ef3a4502b5a398661139e86c/FLAG50946861e [2021-10-11 02:25:16,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/e3a73f344/acd067c5ef3a4502b5a398661139e86c [2021-10-11 02:25:16,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:16,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:16,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:16,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:16,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:16,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:16" (1/1) ... [2021-10-11 02:25:16,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1046acda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:16, skipping insertion in model container [2021-10-11 02:25:16,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:16" (1/1) ... [2021-10-11 02:25:16,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:16,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:16,327 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-10-11 02:25:16,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:16,445 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:25:16,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@68d538f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:16, skipping insertion in model container [2021-10-11 02:25:16,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:16,448 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:25:16,450 INFO L168 Benchmark]: Toolchain (without parser) took 416.74 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 76.5 MB in the beginning and 98.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:16,451 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:16,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.11 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 76.5 MB in the beginning and 98.6 MB in the end (delta: -22.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:16,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 104.9 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 414.11 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 76.5 MB in the beginning and 98.6 MB in the end (delta: -22.2 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: 175]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:18,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:18,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:18,752 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:18,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:18,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:18,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:18,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:18,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:18,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:18,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:18,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:18,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:18,767 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:18,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:18,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:18,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:18,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:18,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:18,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:18,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:18,781 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:18,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:18,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:18,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:18,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:18,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:18,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:18,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:18,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:18,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:18,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:18,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:18,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:18,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:18,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:18,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:18,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:18,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:18,799 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:18,800 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:18,801 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:25:18,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:18,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:18,829 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:18,829 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:18,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:18,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:18,830 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:18,830 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:18,830 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:18,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:18,831 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:18,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:18,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:18,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:18,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:18,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:18,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:18,833 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:25:18,833 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:25:18,833 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:18,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:18,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:18,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:18,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:18,834 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:25:18,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:18,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:18,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:18,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:18,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:18,836 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:25:18,836 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:25:18,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:18,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:18,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:18,837 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_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d04a081dc9d0da3f0fd6fd57a31d7ab84af864dd [2021-10-11 02:25:19,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:19,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:19,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:19,245 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:19,246 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:19,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-11 02:25:19,323 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/0f21144eb/d2953e7400b34b228a234b03ab289290/FLAGab9345195 [2021-10-11 02:25:19,985 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:19,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-11 02:25:20,008 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/0f21144eb/d2953e7400b34b228a234b03ab289290/FLAGab9345195 [2021-10-11 02:25:20,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/data/0f21144eb/d2953e7400b34b228a234b03ab289290 [2021-10-11 02:25:20,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:20,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:20,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:20,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:20,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:20,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:20,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@313ba4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20, skipping insertion in model container [2021-10-11 02:25:20,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:20,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:20,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:20,561 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-10-11 02:25:20,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:20,673 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:25:20,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:20,696 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-10-11 02:25:20,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:20,781 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:20,815 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2660,2673] [2021-10-11 02:25:20,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:20,936 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:20,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20 WrapperNode [2021-10-11 02:25:20,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:20,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:20,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:20,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:20,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:20,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:21,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:21,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:21,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:21,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... [2021-10-11 02:25:21,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:21,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:21,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:21,151 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:21,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:25:21,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:21,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:23,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:23,418 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-11 02:25:23,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:23 BoogieIcfgContainer [2021-10-11 02:25:23,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:23,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:23,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:23,428 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:23,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:20" (1/3) ... [2021-10-11 02:25:23,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1c6dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:23, skipping insertion in model container [2021-10-11 02:25:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20" (2/3) ... [2021-10-11 02:25:23,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1c6dee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:23, skipping insertion in model container [2021-10-11 02:25:23,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:23" (3/3) ... [2021-10-11 02:25:23,432 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2021-10-11 02:25:23,446 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:23,449 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:25:23,460 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:25:23,497 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:23,500 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:23,501 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:23,501 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:23,501 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:23,501 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:23,501 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:23,502 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:23,517 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2021-10-11 02:25:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:25:23,524 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,525 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,531 INFO L82 PathProgramCache]: Analyzing trace with hash 946560340, now seen corresponding path program 1 times [2021-10-11 02:25:23,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:23,545 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876546805] [2021-10-11 02:25:23,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:23,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:25:23,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:23,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:23,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:23,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876546805] [2021-10-11 02:25:23,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:23,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:23,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864906872] [2021-10-11 02:25:23,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:23,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:23,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:23,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:23,912 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2021-10-11 02:25:23,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:23,947 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2021-10-11 02:25:23,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:23,949 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 02:25:23,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:23,963 INFO L225 Difference]: With dead ends: 220 [2021-10-11 02:25:23,963 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:25:23,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:23,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:25:24,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:25:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:25:24,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2021-10-11 02:25:24,037 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2021-10-11 02:25:24,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:24,037 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2021-10-11 02:25:24,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:24,037 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2021-10-11 02:25:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:25:24,041 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:24,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:24,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:25:24,253 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:24,254 INFO L82 PathProgramCache]: Analyzing trace with hash 35529587, now seen corresponding path program 1 times [2021-10-11 02:25:24,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:24,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541845021] [2021-10-11 02:25:24,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:24,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:24,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:24,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:24,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:24,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541845021] [2021-10-11 02:25:24,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:24,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:24,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676662188] [2021-10-11 02:25:24,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:24,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:24,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:24,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:24,535 INFO L87 Difference]: Start difference. First operand 109 states and 156 transitions. Second operand 3 states. [2021-10-11 02:25:24,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:24,560 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2021-10-11 02:25:24,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:24,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:25:24,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:24,564 INFO L225 Difference]: With dead ends: 109 [2021-10-11 02:25:24,564 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:25:24,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:24,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:25:24,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:25:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:25:24,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-10-11 02:25:24,576 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2021-10-11 02:25:24,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:24,580 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-10-11 02:25:24,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-10-11 02:25:24,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:25:24,581 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:24,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:24,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:25:24,800 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:24,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:24,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1149792188, now seen corresponding path program 1 times [2021-10-11 02:25:24,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:24,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420644479] [2021-10-11 02:25:24,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:25,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:25,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:25,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:25,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:25,054 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420644479] [2021-10-11 02:25:25,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:25,055 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:25,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96325960] [2021-10-11 02:25:25,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:25,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:25,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:25,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:25,057 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2021-10-11 02:25:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:25,073 INFO L93 Difference]: Finished difference Result 129 states and 189 transitions. [2021-10-11 02:25:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:25,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:25:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:25,075 INFO L225 Difference]: With dead ends: 129 [2021-10-11 02:25:25,076 INFO L226 Difference]: Without dead ends: 88 [2021-10-11 02:25:25,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-11 02:25:25,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-10-11 02:25:25,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 02:25:25,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 123 transitions. [2021-10-11 02:25:25,088 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 123 transitions. Word has length 24 [2021-10-11 02:25:25,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:25,088 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 123 transitions. [2021-10-11 02:25:25,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 123 transitions. [2021-10-11 02:25:25,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:25:25,090 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:25,090 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:25,305 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,306 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:25,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:25,311 INFO L82 PathProgramCache]: Analyzing trace with hash 190951434, now seen corresponding path program 1 times [2021-10-11 02:25:25,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:25,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555007281] [2021-10-11 02:25:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:25,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:25:25,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:25,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:25,570 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:25,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555007281] [2021-10-11 02:25:25,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:25,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:25,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295831608] [2021-10-11 02:25:25,571 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:25,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:25,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:25,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:25,572 INFO L87 Difference]: Start difference. First operand 84 states and 123 transitions. Second operand 5 states. [2021-10-11 02:25:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:25,770 INFO L93 Difference]: Finished difference Result 488 states and 740 transitions. [2021-10-11 02:25:25,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:25:25,771 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:25:25,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:25,778 INFO L225 Difference]: With dead ends: 488 [2021-10-11 02:25:25,778 INFO L226 Difference]: Without dead ends: 410 [2021-10-11 02:25:25,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:25:25,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-11 02:25:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 156. [2021-10-11 02:25:25,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2021-10-11 02:25:25,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 227 transitions. [2021-10-11 02:25:25,828 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 227 transitions. Word has length 26 [2021-10-11 02:25:25,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:25,830 INFO L481 AbstractCegarLoop]: Abstraction has 156 states and 227 transitions. [2021-10-11 02:25:25,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:25,830 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 227 transitions. [2021-10-11 02:25:25,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:25:25,838 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:25,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:26,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:25:26,046 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:26,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:26,046 INFO L82 PathProgramCache]: Analyzing trace with hash -418085112, now seen corresponding path program 1 times [2021-10-11 02:25:26,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:26,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858073366] [2021-10-11 02:25:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:27,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:28,152 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:28,282 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:25:28,283 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:28,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:25:28,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:28 BoogieIcfgContainer [2021-10-11 02:25:28,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:28,655 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:28,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:28,656 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:28,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:23" (3/4) ... [2021-10-11 02:25:28,658 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:25:28,766 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a0064aa-6ad3-4a78-b90b-e936992b017b/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:28,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:28,769 INFO L168 Benchmark]: Toolchain (without parser) took 8499.79 ms. Allocated memory was 58.7 MB in the beginning and 107.0 MB in the end (delta: 48.2 MB). Free memory was 36.3 MB in the beginning and 35.7 MB in the end (delta: 659.3 kB). Peak memory consumption was 48.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,770 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:28,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.62 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 36.2 MB in the beginning and 70.4 MB in the end (delta: -34.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.23 ms. Allocated memory is still 88.1 MB. Free memory was 70.4 MB in the beginning and 66.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,772 INFO L168 Benchmark]: Boogie Preprocessor took 105.09 ms. Allocated memory is still 88.1 MB. Free memory was 66.9 MB in the beginning and 64.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,773 INFO L168 Benchmark]: RCFGBuilder took 2271.21 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 53.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,774 INFO L168 Benchmark]: TraceAbstraction took 5229.97 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 47.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,778 INFO L168 Benchmark]: Witness Printer took 112.08 ms. Allocated memory is still 107.0 MB. Free memory was 47.2 MB in the beginning and 35.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:28,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 651.62 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 36.2 MB in the beginning and 70.4 MB in the end (delta: -34.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.23 ms. Allocated memory is still 88.1 MB. Free memory was 70.4 MB in the beginning and 66.9 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 105.09 ms. Allocated memory is still 88.1 MB. Free memory was 66.9 MB in the beginning and 64.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2271.21 ms. Allocated memory is still 88.1 MB. Free memory was 64.1 MB in the beginning and 53.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 29.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5229.97 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.6 MB in the beginning and 47.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. * Witness Printer took 112.08 ms. Allocated memory is still 107.0 MB. Free memory was 47.2 MB in the beginning and 35.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 142]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L316] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int pumpRunning = 0; [L588] int systemActive = 1; [L870] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L943] int retValue_acc ; [L944] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L950] tmp = valid_product() [L952] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L517] int splverifierCounter ; [L518] int tmp ; [L519] int tmp___0 ; [L520] int tmp___1 ; [L521] int tmp___2 ; [L524] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L526] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L528] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] tmp = __VERIFIER_nondet_int() [L536] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L544] tmp___0 = __VERIFIER_nondet_int() [L546] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] tmp___2 = __VERIFIER_nondet_int() [L556] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] COND TRUE \read(systemActive) [L650] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] COND FALSE !(\read(pumpRunning)) [L624] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L627] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] int tmp ; [L800] int tmp___0 ; [L801] int tmp___1 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L805] tmp = isMethaneLevelCritical() [L807] COND FALSE !(\read(tmp)) [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] tmp___0 = getWaterLevel() [L813] COND TRUE tmp___0 == 2 [L719] int retValue_acc ; [L722] retValue_acc = pumpRunning [L723] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L815] tmp___1 = isPumpRunning() [L817] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L142] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 433 SDslu, 331 SDs, 0 SdLazy, 53 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=156occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 5319 SizeOfPredicates, 4 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...