./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 40c03acb761953b49167bc0508d57daafd17b745 ............................................................................................................................................ 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 40c03acb761953b49167bc0508d57daafd17b745 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:25:13,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:13,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:13,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:13,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:13,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:13,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:13,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:13,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:13,521 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:13,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:13,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:13,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:13,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:13,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:13,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:13,533 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:13,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:13,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:13,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:13,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:13,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:13,559 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:13,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:13,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:13,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:13,565 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:13,566 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:13,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:13,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:13,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:13,570 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:13,571 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:13,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:13,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:13,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:13,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:13,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:13,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:13,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:13,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:13,578 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:13,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:13,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:13,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:13,609 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:13,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:13,609 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:13,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:13,610 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:13,610 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:13,610 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:13,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:13,612 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:13,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:13,612 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:13,613 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:13,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:13,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:13,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:13,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:13,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:13,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:13,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:13,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:13,615 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:13,616 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:13,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:13,616 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:13,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:13,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:13,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:13,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:13,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:13,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:13,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:13,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:13,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:13,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:13,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:13,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:13,621 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c03acb761953b49167bc0508d57daafd17b745 [2021-10-11 02:25:13,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:13,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:13,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:13,968 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:13,969 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:13,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-11 02:25:14,067 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/8939e37ee/408d75f1733c43e18daef0ee5b2cf9ed/FLAG469eefe2a [2021-10-11 02:25:14,553 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:14,565 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-11 02:25:14,580 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/8939e37ee/408d75f1733c43e18daef0ee5b2cf9ed/FLAG469eefe2a [2021-10-11 02:25:14,878 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/8939e37ee/408d75f1733c43e18daef0ee5b2cf9ed [2021-10-11 02:25:14,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:14,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:14,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:14,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:14,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:14,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:14, skipping insertion in model container [2021-10-11 02:25:14,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:14" (1/1) ... [2021-10-11 02:25:14,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:14,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:15,403 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15670,15683] [2021-10-11 02:25:15,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:15,448 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 02:25:15,449 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b458202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:15, skipping insertion in model container [2021-10-11 02:25:15,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:15,450 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:25:15,453 INFO L168 Benchmark]: Toolchain (without parser) took 569.47 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.7 MB in the beginning and 82.9 MB in the end (delta: -31.2 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,454 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:15,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 560.71 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.5 MB in the beginning and 83.3 MB in the end (delta: -31.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:15,457 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 560.71 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 51.5 MB in the beginning and 83.3 MB in the end (delta: -31.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: 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 02:25:17,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:17,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:17,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:17,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:17,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:17,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:17,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:17,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:17,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:17,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:17,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:17,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:17,732 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:17,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:17,735 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:17,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:17,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:17,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:17,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:17,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:17,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:17,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:17,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:17,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:17,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:17,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:17,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:17,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:17,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:17,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:17,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:17,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:17,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:17,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:17,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:17,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:17,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:17,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:17,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:17,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:17,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:25:17,819 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:17,819 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:17,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:17,821 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:17,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:17,822 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:17,822 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:17,822 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:17,822 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:17,824 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:17,825 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:17,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:17,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:17,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:17,826 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:17,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:17,827 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:17,827 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:25:17,827 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:25:17,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:17,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:17,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:17,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:17,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:17,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:25:17,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:17,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:17,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:17,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:17,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:17,830 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:25:17,831 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:25:17,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:17,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:17,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:17,832 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40c03acb761953b49167bc0508d57daafd17b745 [2021-10-11 02:25:18,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:18,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:18,254 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:18,255 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:18,256 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:18,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-11 02:25:18,344 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/19c6fb752/b1586d5de161413e8e75d5c0c25f8ad3/FLAG3d17376a0 [2021-10-11 02:25:19,010 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:19,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-11 02:25:19,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/19c6fb752/b1586d5de161413e8e75d5c0c25f8ad3/FLAG3d17376a0 [2021-10-11 02:25:19,296 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/data/19c6fb752/b1586d5de161413e8e75d5c0c25f8ad3 [2021-10-11 02:25:19,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:19,305 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:19,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:19,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:19,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:19,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:19" (1/1) ... [2021-10-11 02:25:19,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d7d5b35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:19, skipping insertion in model container [2021-10-11 02:25:19,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:19" (1/1) ... [2021-10-11 02:25:19,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:19,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:19,686 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15670,15683] [2021-10-11 02:25:19,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:19,763 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:25:19,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:19,892 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15670,15683] [2021-10-11 02:25:19,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:19,923 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:20,002 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15670,15683] [2021-10-11 02:25:20,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:20,044 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:20,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:20 WrapperNode [2021-10-11 02:25:20,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:20,046 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:20,046 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:20,046 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:20,054 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 02:25:20,075 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 02:25:20,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:20,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:20,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:20,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:20,123 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 02:25:20,124 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 02:25:20,135 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 02:25:20,135 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 02:25:20,156 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 02:25:20,180 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 02:25:20,183 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 02:25:20,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:20,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:20,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:20,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:20,190 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_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:25:20,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:20,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:22,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:22,520 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-11 02:25:22,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22 BoogieIcfgContainer [2021-10-11 02:25:22,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:22,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:22,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:22,536 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:22,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:19" (1/3) ... [2021-10-11 02:25:22,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cb92ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:22, skipping insertion in model container [2021-10-11 02:25:22,538 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 02:25:22,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56cb92ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:22, skipping insertion in model container [2021-10-11 02:25:22,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22" (3/3) ... [2021-10-11 02:25:22,542 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2021-10-11 02:25:22,556 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:22,559 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:25:22,571 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:25:22,596 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:22,596 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:22,596 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:22,596 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:22,596 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:22,597 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:22,597 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:22,597 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:22,612 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-10-11 02:25:22,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:22,618 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:22,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:22,619 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:22,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2021-10-11 02:25:22,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:22,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674059453] [2021-10-11 02:25:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:22,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:25:22,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:22,983 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 02:25:22,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:22,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674059453] [2021-10-11 02:25:22,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:22,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:22,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784646459] [2021-10-11 02:25:22,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:25:22,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:23,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:25:23,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:23,019 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2021-10-11 02:25:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:23,064 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2021-10-11 02:25:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:25:23,066 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:25:23,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:23,075 INFO L225 Difference]: With dead ends: 168 [2021-10-11 02:25:23,075 INFO L226 Difference]: Without dead ends: 83 [2021-10-11 02:25:23,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:25:23,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-11 02:25:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-11 02:25:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-10-11 02:25:23,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2021-10-11 02:25:23,122 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2021-10-11 02:25:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:23,123 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-11 02:25:23,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:25:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2021-10-11 02:25:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:25:23,124 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:25:23,337 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2021-10-11 02:25:23,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:23,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81973393] [2021-10-11 02:25:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:23,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:23,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:23,619 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 02:25:23,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:23,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81973393] [2021-10-11 02:25:23,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:23,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:23,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762154456] [2021-10-11 02:25:23,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:23,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:23,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:23,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:23,625 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2021-10-11 02:25:23,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:23,642 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2021-10-11 02:25:23,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:23,643 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:25:23,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:23,644 INFO L225 Difference]: With dead ends: 83 [2021-10-11 02:25:23,644 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:25:23,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:25:23,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:25:23,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:25:23,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-11 02:25:23,651 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2021-10-11 02:25:23,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:23,652 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-11 02:25:23,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:23,652 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-11 02:25:23,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:25:23,653 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:23,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:23,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:25:23,869 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:23,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:23,869 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2021-10-11 02:25:23,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:23,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836546445] [2021-10-11 02:25:23,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:24,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:24,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:24,207 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 02:25:24,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:24,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836546445] [2021-10-11 02:25:24,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:24,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:24,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541226448] [2021-10-11 02:25:24,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:24,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:24,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:24,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:24,210 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2021-10-11 02:25:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:24,242 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2021-10-11 02:25:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:24,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:25:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:24,243 INFO L225 Difference]: With dead ends: 68 [2021-10-11 02:25:24,244 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:25:24,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:24,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:25:24,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:25:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:25:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2021-10-11 02:25:24,251 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2021-10-11 02:25:24,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:24,251 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2021-10-11 02:25:24,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:24,251 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2021-10-11 02:25:24,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:25:24,252 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:24,252 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] [2021-10-11 02:25:24,471 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:25:24,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:24,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:24,473 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2021-10-11 02:25:24,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:24,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1091365130] [2021-10-11 02:25:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:24,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:24,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:24,729 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 02:25:24,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:24,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1091365130] [2021-10-11 02:25:24,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:24,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:24,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593516876] [2021-10-11 02:25:24,732 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:24,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:24,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:24,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:24,735 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2021-10-11 02:25:24,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:24,803 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2021-10-11 02:25:24,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:24,803 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:25:24,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:24,808 INFO L225 Difference]: With dead ends: 89 [2021-10-11 02:25:24,808 INFO L226 Difference]: Without dead ends: 58 [2021-10-11 02:25:24,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 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 02:25:24,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-11 02:25:24,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-10-11 02:25:24,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 02:25:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2021-10-11 02:25:24,825 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2021-10-11 02:25:24,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:24,826 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2021-10-11 02:25:24,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2021-10-11 02:25:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:25:24,827 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:24,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:25,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,043 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:25,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:25,043 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2021-10-11 02:25:25,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:25,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218266347] [2021-10-11 02:25:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/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 02:25:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:25,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:25:25,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:25,325 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 02:25:25,326 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:25,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218266347] [2021-10-11 02:25:25,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:25,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:25,327 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785241338] [2021-10-11 02:25:25,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:25,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:25,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:25,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:25,330 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2021-10-11 02:25:25,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:25,524 INFO L93 Difference]: Finished difference Result 266 states and 385 transitions. [2021-10-11 02:25:25,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:25:25,524 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:25:25,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:25,529 INFO L225 Difference]: With dead ends: 266 [2021-10-11 02:25:25,530 INFO L226 Difference]: Without dead ends: 216 [2021-10-11 02:25:25,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:25,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-10-11 02:25:25,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 100. [2021-10-11 02:25:25,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:25:25,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 139 transitions. [2021-10-11 02:25:25,575 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 139 transitions. Word has length 29 [2021-10-11 02:25:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:25,576 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 139 transitions. [2021-10-11 02:25:25,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 139 transitions. [2021-10-11 02:25:25,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:25:25,581 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:25,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:25,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,782 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash 331369175, now seen corresponding path program 1 times [2021-10-11 02:25:25,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:25,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408709217] [2021-10-11 02:25:25,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:25,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:25:25,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:26,054 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 02:25:26,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:26,055 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408709217] [2021-10-11 02:25:26,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:26,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:25:26,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219484381] [2021-10-11 02:25:26,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:26,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:26,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:26,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:26,064 INFO L87 Difference]: Start difference. First operand 100 states and 139 transitions. Second operand 5 states. [2021-10-11 02:25:26,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:26,254 INFO L93 Difference]: Finished difference Result 280 states and 394 transitions. [2021-10-11 02:25:26,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:25:26,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 02:25:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:26,256 INFO L225 Difference]: With dead ends: 280 [2021-10-11 02:25:26,257 INFO L226 Difference]: Without dead ends: 278 [2021-10-11 02:25:26,259 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-11 02:25:26,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2021-10-11 02:25:26,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:25:26,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 138 transitions. [2021-10-11 02:25:26,296 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 138 transitions. Word has length 30 [2021-10-11 02:25:26,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:26,300 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 138 transitions. [2021-10-11 02:25:26,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:26,301 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 138 transitions. [2021-10-11 02:25:26,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:25:26,302 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:26,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:26,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:25:26,503 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:26,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:26,503 INFO L82 PathProgramCache]: Analyzing trace with hash 261712181, now seen corresponding path program 1 times [2021-10-11 02:25:26,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:26,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1882216828] [2021-10-11 02:25:26,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:26,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:25:26,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:26,750 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 02:25:26,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:26,751 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1882216828] [2021-10-11 02:25:26,751 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:26,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:25:26,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35867042] [2021-10-11 02:25:26,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:26,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:26,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:26,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:26,753 INFO L87 Difference]: Start difference. First operand 100 states and 138 transitions. Second operand 5 states. [2021-10-11 02:25:26,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:26,836 INFO L93 Difference]: Finished difference Result 270 states and 372 transitions. [2021-10-11 02:25:26,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:26,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-10-11 02:25:26,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:26,843 INFO L225 Difference]: With dead ends: 270 [2021-10-11 02:25:26,843 INFO L226 Difference]: Without dead ends: 176 [2021-10-11 02:25:26,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:25:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-11 02:25:26,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 106. [2021-10-11 02:25:26,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:25:26,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2021-10-11 02:25:26,877 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 33 [2021-10-11 02:25:26,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:26,877 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2021-10-11 02:25:26,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:26,877 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2021-10-11 02:25:26,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:25:26,878 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:26,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:27,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:25:27,094 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash -325093833, now seen corresponding path program 1 times [2021-10-11 02:25:27,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:27,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918169838] [2021-10-11 02:25:27,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:27,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:25:27,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:27,332 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 02:25:27,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:27,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918169838] [2021-10-11 02:25:27,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:27,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:25:27,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545936616] [2021-10-11 02:25:27,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:27,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:27,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:27,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:27,335 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2021-10-11 02:25:27,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:27,379 INFO L93 Difference]: Finished difference Result 252 states and 342 transitions. [2021-10-11 02:25:27,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:27,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2021-10-11 02:25:27,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:27,381 INFO L225 Difference]: With dead ends: 252 [2021-10-11 02:25:27,381 INFO L226 Difference]: Without dead ends: 152 [2021-10-11 02:25:27,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:25:27,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-11 02:25:27,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 110. [2021-10-11 02:25:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2021-10-11 02:25:27,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 148 transitions. [2021-10-11 02:25:27,398 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 148 transitions. Word has length 33 [2021-10-11 02:25:27,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:27,399 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 148 transitions. [2021-10-11 02:25:27,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:27,399 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2021-10-11 02:25:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:25:27,400 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:27,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:27,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:25:27,616 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:27,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:27,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1604957511, now seen corresponding path program 1 times [2021-10-11 02:25:27,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:27,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588042185] [2021-10-11 02:25:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:27,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:25:27,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:27,848 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 02:25:27,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:27,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588042185] [2021-10-11 02:25:27,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:27,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:27,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145426955] [2021-10-11 02:25:27,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:27,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:27,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:27,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:27,851 INFO L87 Difference]: Start difference. First operand 110 states and 148 transitions. Second operand 3 states. [2021-10-11 02:25:27,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:27,893 INFO L93 Difference]: Finished difference Result 262 states and 352 transitions. [2021-10-11 02:25:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:27,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-10-11 02:25:27,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:27,895 INFO L225 Difference]: With dead ends: 262 [2021-10-11 02:25:27,895 INFO L226 Difference]: Without dead ends: 158 [2021-10-11 02:25:27,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 02:25:27,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-10-11 02:25:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2021-10-11 02:25:27,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-10-11 02:25:27,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 206 transitions. [2021-10-11 02:25:27,921 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 206 transitions. Word has length 33 [2021-10-11 02:25:27,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:27,921 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 206 transitions. [2021-10-11 02:25:27,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:27,921 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 206 transitions. [2021-10-11 02:25:27,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:25:27,922 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:27,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:28,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:25:28,137 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:28,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:28,138 INFO L82 PathProgramCache]: Analyzing trace with hash -447661573, now seen corresponding path program 1 times [2021-10-11 02:25:28,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:28,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1418968337] [2021-10-11 02:25:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:28,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:25:28,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:28,408 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 02:25:28,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:25:28,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1418968337] [2021-10-11 02:25:28,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:28,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:25:28,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776040593] [2021-10-11 02:25:28,409 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:28,409 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:25:28,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:25:28,410 INFO L87 Difference]: Start difference. First operand 158 states and 206 transitions. Second operand 6 states. [2021-10-11 02:25:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:30,035 INFO L93 Difference]: Finished difference Result 482 states and 630 transitions. [2021-10-11 02:25:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:25:30,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2021-10-11 02:25:30,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:30,037 INFO L225 Difference]: With dead ends: 482 [2021-10-11 02:25:30,038 INFO L226 Difference]: Without dead ends: 330 [2021-10-11 02:25:30,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:25:30,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-10-11 02:25:30,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 158. [2021-10-11 02:25:30,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2021-10-11 02:25:30,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 202 transitions. [2021-10-11 02:25:30,082 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 202 transitions. Word has length 34 [2021-10-11 02:25:30,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:30,082 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 202 transitions. [2021-10-11 02:25:30,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:30,082 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 202 transitions. [2021-10-11 02:25:30,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:25:30,083 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:30,084 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:30,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:25:30,299 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:30,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:30,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2059222374, now seen corresponding path program 1 times [2021-10-11 02:25:30,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:25:30,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716427782] [2021-10-11 02:25:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:25:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:31,446 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:32,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:32,846 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:25:32,846 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:33,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:25:33,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:33 BoogieIcfgContainer [2021-10-11 02:25:33,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:33,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:33,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:33,236 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:33,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:22" (3/4) ... [2021-10-11 02:25:33,239 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:25:33,358 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0ff8d9-ce79-44a3-8a18-5f0701f8fff2/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:33,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:33,360 INFO L168 Benchmark]: Toolchain (without parser) took 14054.71 ms. Allocated memory was 62.9 MB in the beginning and 119.5 MB in the end (delta: 56.6 MB). Free memory was 42.8 MB in the beginning and 73.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,361 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:33,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 738.91 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.6 MB in the beginning and 49.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.59 ms. Allocated memory is still 79.7 MB. Free memory was 49.0 MB in the beginning and 45.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,362 INFO L168 Benchmark]: Boogie Preprocessor took 74.23 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,362 INFO L168 Benchmark]: RCFGBuilder took 2333.95 ms. Allocated memory is still 79.7 MB. Free memory was 43.2 MB in the beginning and 56.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,363 INFO L168 Benchmark]: TraceAbstraction took 10711.62 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 56.4 MB in the beginning and 93.1 MB in the end (delta: -36.8 MB). Peak memory consumption was 54.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,363 INFO L168 Benchmark]: Witness Printer took 123.07 ms. Allocated memory is still 119.5 MB. Free memory was 93.1 MB in the beginning and 73.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 62.9 MB. Free memory is still 45.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 738.91 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.6 MB in the beginning and 49.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.59 ms. Allocated memory is still 79.7 MB. Free memory was 49.0 MB in the beginning and 45.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.23 ms. Allocated memory is still 79.7 MB. Free memory was 45.9 MB in the beginning and 43.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2333.95 ms. Allocated memory is still 79.7 MB. Free memory was 43.2 MB in the beginning and 56.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10711.62 ms. Allocated memory was 79.7 MB in the beginning and 119.5 MB in the end (delta: 39.8 MB). Free memory was 56.4 MB in the beginning and 93.1 MB in the end (delta: -36.8 MB). Peak memory consumption was 54.7 MB. Max. memory is 16.1 GB. * Witness Printer took 123.07 ms. Allocated memory is still 119.5 MB. Free memory was 93.1 MB in the beginning and 73.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 766]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L583] int pumpRunning = 0; [L584] int systemActive = 1; [L835] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L908] int retValue_acc ; [L909] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] int retValue_acc ; [L829] retValue_acc = 1 [L830] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] tmp = valid_product() [L917] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L513] int splverifierCounter ; [L514] int tmp ; [L515] int tmp___0 ; [L516] int tmp___1 ; [L517] int tmp___2 ; [L520] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] tmp = __VERIFIER_nondet_int() [L532] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L591] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L623] COND TRUE ! pumpRunning [L735] int retValue_acc ; [L736] int tmp ; [L737] int tmp___0 ; [L495] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L741] tmp = isHighWaterSensorDry() [L743] COND FALSE !(\read(tmp)) [L746] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] retValue_acc = tmp___0 [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L625] tmp = isHighWaterLevel() [L627] COND TRUE \read(tmp) [L654] int tmp ; [L679] int retValue_acc ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L683] retValue_acc = isMethaneLevelCritical() [L685] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isMethaneAlarm() [L660] COND FALSE !(\read(tmp)) [L648] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L777] tmp = isMethaneLevelCritical() [L779] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L524] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L530] tmp = __VERIFIER_nondet_int() [L532] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L540] tmp___0 = __VERIFIER_nondet_int() [L542] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L445] COND FALSE !(\read(methaneLevelCritical)) [L448] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L550] tmp___2 = __VERIFIER_nondet_int() [L552] COND TRUE \read(tmp___2) [L757] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L591] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L598] COND TRUE \read(systemActive) [L620] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L772] int tmp ; [L773] int tmp___0 ; [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L777] tmp = isMethaneLevelCritical() [L779] COND TRUE \read(tmp) [L690] int retValue_acc ; [L693] retValue_acc = pumpRunning [L694] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L781] tmp___0 = isPumpRunning() [L783] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L766] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.4s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 750 SDtfs, 950 SDslu, 1174 SDs, 0 SdLazy, 164 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 580 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 14200 SizeOfPredicates, 18 NumberOfNonLiveVariables, 2064 ConjunctsInSsa, 35 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! Received shutdown request...