./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae ............................................................................................................................................ 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_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:14:06,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:14:06,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:14:06,486 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:14:06,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:14:06,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:14:06,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:14:06,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:14:06,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:14:06,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:14:06,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:14:06,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:14:06,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:14:06,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:14:06,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:14:06,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:14:06,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:14:06,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:14:06,516 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:14:06,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:14:06,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:14:06,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:14:06,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:14:06,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:14:06,532 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:14:06,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:14:06,533 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:14:06,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:14:06,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:14:06,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:14:06,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:14:06,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:14:06,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:14:06,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:14:06,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:14:06,544 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:14:06,547 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:14:06,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:14:06,548 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:14:06,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:14:06,552 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:14:06,553 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:14:06,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:14:06,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:14:06,610 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:14:06,612 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:14:06,612 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:14:06,612 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:14:06,613 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:14:06,613 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:14:06,613 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:14:06,613 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:14:06,614 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:14:06,614 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:14:06,614 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:14:06,614 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:14:06,615 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:14:06,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:14:06,616 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:14:06,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:14:06,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:14:06,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:14:06,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:14:06,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:14:06,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:14:06,617 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:14:06,618 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:14:06,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:14:06,618 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:14:06,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:14:06,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:14:06,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:14:06,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:06,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:14:06,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:14:06,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:14:06,620 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:14:06,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:14:06,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:14:06,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:14:06,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:14:06,622 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_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2021-10-24 10:14:06,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:14:06,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:14:06,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:14:06,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:14:06,954 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:14:06,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-24 10:14:07,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/5e55a2f1d/b5ddd31602ce4127bb44f31e39dbf041/FLAG32bf0a07a [2021-10-24 10:14:07,632 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:14:07,641 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-24 10:14:07,664 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/5e55a2f1d/b5ddd31602ce4127bb44f31e39dbf041/FLAG32bf0a07a [2021-10-24 10:14:07,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/5e55a2f1d/b5ddd31602ce4127bb44f31e39dbf041 [2021-10-24 10:14:07,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:14:07,909 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:14:07,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:07,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:14:07,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:14:07,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:07" (1/1) ... [2021-10-24 10:14:07,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1572f119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:07, skipping insertion in model container [2021-10-24 10:14:07,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:07" (1/1) ... [2021-10-24 10:14:07,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:14:07,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:08,206 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2021-10-24 10:14:08,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:08,461 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:14:08,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c2ffe2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:08, skipping insertion in model container [2021-10-24 10:14:08,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:08,463 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:14:08,466 INFO L168 Benchmark]: Toolchain (without parser) took 555.64 ms. Allocated memory is still 92.3 MB. Free memory was 56.3 MB in the beginning and 64.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:08,468 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 63.2 MB in the beginning and 63.1 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:14:08,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 552.31 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 64.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:08,474 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 92.3 MB. Free memory was 63.2 MB in the beginning and 63.1 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 552.31 ms. Allocated memory is still 92.3 MB. Free memory was 56.0 MB in the beginning and 64.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 651]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:14:11,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:14:11,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:14:11,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:14:11,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:14:11,403 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:14:11,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:14:11,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:14:11,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:14:11,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:14:11,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:14:11,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:14:11,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:14:11,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:14:11,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:14:11,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:14:11,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:14:11,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:14:11,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:14:11,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:14:11,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:14:11,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:14:11,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:14:11,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:14:11,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:14:11,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:14:11,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:14:11,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:14:11,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:14:11,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:14:11,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:14:11,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:14:11,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:14:11,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:14:11,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:14:11,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:14:11,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:14:11,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:14:11,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:14:11,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:14:11,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:14:11,484 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:14:11,544 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:14:11,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:14:11,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:14:11,547 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:14:11,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:14:11,548 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:14:11,548 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:14:11,548 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:14:11,549 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:14:11,551 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:14:11,552 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:14:11,552 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:14:11,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:14:11,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:14:11,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:14:11,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:14:11,554 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:14:11,554 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:14:11,554 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:14:11,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:14:11,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:14:11,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:14:11,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:14:11,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:14:11,556 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:14:11,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:14:11,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:11,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:14:11,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:14:11,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:14:11,558 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:14:11,558 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:14:11,559 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:14:11,559 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:14:11,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:14:11,560 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_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baaf7bc14db82105b5843c6fd2fd917eb756a5c6e86ff33e83c3b3f08cca23ae [2021-10-24 10:14:12,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:14:12,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:14:12,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:14:12,114 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:14:12,115 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:14:12,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-24 10:14:12,182 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/fcade67ed/2d2798a1026e4a2a87af30f7897d55d0/FLAG69ef0d008 [2021-10-24 10:14:13,005 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:14:13,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c [2021-10-24 10:14:13,035 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/fcade67ed/2d2798a1026e4a2a87af30f7897d55d0/FLAG69ef0d008 [2021-10-24 10:14:13,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/data/fcade67ed/2d2798a1026e4a2a87af30f7897d55d0 [2021-10-24 10:14:13,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:14:13,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:14:13,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:13,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:14:13,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:14:13,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:13" (1/1) ... [2021-10-24 10:14:13,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7866d118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:13, skipping insertion in model container [2021-10-24 10:14:13,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:14:13" (1/1) ... [2021-10-24 10:14:13,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:14:13,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:13,532 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2021-10-24 10:14:13,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:13,836 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:14:13,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:14:13,883 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2021-10-24 10:14:14,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:14,052 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:14:14,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/sv-benchmarks/c/product-lines/minepump_spec3_product48.cil.c[1605,1618] [2021-10-24 10:14:14,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:14:14,200 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:14:14,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14 WrapperNode [2021-10-24 10:14:14,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:14:14,203 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:14,203 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:14:14,203 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:14:14,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:14:14,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:14:14,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:14:14,350 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:14:14,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:14:14,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:14:14,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:14:14,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:14:14,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (1/1) ... [2021-10-24 10:14:14,479 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:14:14,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:14:14,515 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:14:14,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:14:14,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:14:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:14:14,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:14:14,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:14:17,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:14:17,291 INFO L299 CfgBuilder]: Removed 204 assume(true) statements. [2021-10-24 10:14:17,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:17 BoogieIcfgContainer [2021-10-24 10:14:17,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:14:17,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:14:17,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:14:17,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:14:17,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:14:13" (1/3) ... [2021-10-24 10:14:17,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2207e2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:17, skipping insertion in model container [2021-10-24 10:14:17,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:14:14" (2/3) ... [2021-10-24 10:14:17,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2207e2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:14:17, skipping insertion in model container [2021-10-24 10:14:17,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:17" (3/3) ... [2021-10-24 10:14:17,312 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2021-10-24 10:14:17,318 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:14:17,319 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:14:17,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:14:17,396 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:14:17,396 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:14:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:17,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:14:17,438 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:17,439 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:17,440 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:17,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:17,446 INFO L82 PathProgramCache]: Analyzing trace with hash -839049995, now seen corresponding path program 1 times [2021-10-24 10:14:17,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:17,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480863375] [2021-10-24 10:14:17,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:17,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:17,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:17,463 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:17,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:14:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:17,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:14:17,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:17,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:17,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:17,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:17,948 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:17,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480863375] [2021-10-24 10:14:17,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480863375] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:17,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:17,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:14:17,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450276676] [2021-10-24 10:14:17,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:14:17,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:17,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:14:17,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:14:17,977 INFO L87 Difference]: Start difference. First operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:18,023 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2021-10-24 10:14:18,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:14:18,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:14:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:18,034 INFO L225 Difference]: With dead ends: 268 [2021-10-24 10:14:18,034 INFO L226 Difference]: Without dead ends: 133 [2021-10-24 10:14:18,037 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:14:18,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-24 10:14:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-24 10:14:18,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.476923076923077) internal successors, (192), 132 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2021-10-24 10:14:18,088 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2021-10-24 10:14:18,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:18,088 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2021-10-24 10:14:18,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2021-10-24 10:14:18,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:14:18,091 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:18,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:18,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:18,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:18,305 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:18,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1750080748, now seen corresponding path program 1 times [2021-10-24 10:14:18,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:18,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [861668278] [2021-10-24 10:14:18,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:18,307 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:18,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:18,308 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:18,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:14:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:18,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:14:18,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:18,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:18,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:18,710 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:18,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [861668278] [2021-10-24 10:14:18,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [861668278] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:18,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:18,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:14:18,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248417943] [2021-10-24 10:14:18,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:14:18,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:18,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:14:18,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:14:18,719 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:18,758 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2021-10-24 10:14:18,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:18,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:14:18,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:18,761 INFO L225 Difference]: With dead ends: 133 [2021-10-24 10:14:18,762 INFO L226 Difference]: Without dead ends: 55 [2021-10-24 10:14:18,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:14:18,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-24 10:14:18,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-24 10:14:18,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-10-24 10:14:18,779 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-10-24 10:14:18,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:18,780 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-10-24 10:14:18,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:18,781 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-10-24 10:14:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:14:18,783 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:18,788 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:18,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:19,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:19,001 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:19,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:19,002 INFO L82 PathProgramCache]: Analyzing trace with hash -980873092, now seen corresponding path program 1 times [2021-10-24 10:14:19,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:19,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165646214] [2021-10-24 10:14:19,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:19,004 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:19,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:19,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:19,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:14:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:19,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:14:19,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:19,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:19,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:19,417 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165646214] [2021-10-24 10:14:19,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165646214] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:19,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:19,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:14:19,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056210633] [2021-10-24 10:14:19,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:14:19,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:19,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:14:19,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:14:19,419 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:19,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:19,495 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2021-10-24 10:14:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:14:19,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:14:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:19,500 INFO L225 Difference]: With dead ends: 178 [2021-10-24 10:14:19,500 INFO L226 Difference]: Without dead ends: 129 [2021-10-24 10:14:19,504 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:14:19,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-24 10:14:19,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2021-10-24 10:14:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.48) internal successors, (111), 75 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2021-10-24 10:14:19,526 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2021-10-24 10:14:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:19,526 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2021-10-24 10:14:19,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2021-10-24 10:14:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:14:19,530 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:19,530 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:19,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-24 10:14:19,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:19,750 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:19,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:19,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1838136026, now seen corresponding path program 1 times [2021-10-24 10:14:19,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:19,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2830803] [2021-10-24 10:14:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:19,752 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:19,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:19,758 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:19,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:14:19,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:19,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:14:19,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:20,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:20,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:20,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2830803] [2021-10-24 10:14:20,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2830803] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:20,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:20,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:14:20,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012113434] [2021-10-24 10:14:20,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:14:20,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:14:20,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:20,111 INFO L87 Difference]: Start difference. First operand 76 states and 111 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:20,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:20,196 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2021-10-24 10:14:20,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:14:20,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:14:20,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:20,198 INFO L225 Difference]: With dead ends: 169 [2021-10-24 10:14:20,198 INFO L226 Difference]: Without dead ends: 99 [2021-10-24 10:14:20,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:14:20,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-24 10:14:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-24 10:14:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.4375) internal successors, (138), 96 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2021-10-24 10:14:20,224 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2021-10-24 10:14:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:20,225 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2021-10-24 10:14:20,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2021-10-24 10:14:20,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:14:20,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:20,228 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:20,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:20,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:20,441 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:20,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1544213679, now seen corresponding path program 1 times [2021-10-24 10:14:20,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:20,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672438661] [2021-10-24 10:14:20,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:20,442 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:20,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:20,443 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:20,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:14:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:14:20,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:14:20,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:14:20,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:20,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:14:20,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:14:20,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:14:20,939 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672438661] [2021-10-24 10:14:20,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672438661] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:14:20,940 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:14:20,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 10:14:20,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281846601] [2021-10-24 10:14:20,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:14:20,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:14:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:14:20,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:14:20,941 INFO L87 Difference]: Start difference. First operand 97 states and 138 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:14:21,486 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions. [2021-10-24 10:14:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 10:14:21,487 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 10:14:21,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:14:21,494 INFO L225 Difference]: With dead ends: 1073 [2021-10-24 10:14:21,494 INFO L226 Difference]: Without dead ends: 982 [2021-10-24 10:14:21,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 164.6ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 10:14:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2021-10-24 10:14:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247. [2021-10-24 10:14:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-10-24 10:14:21,547 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27 [2021-10-24 10:14:21,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:14:21,548 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-10-24 10:14:21,548 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:14:21,548 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-10-24 10:14:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:14:21,549 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:14:21,549 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:14:21,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:21,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:21,763 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:14:21,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:14:21,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1050489875, now seen corresponding path program 1 times [2021-10-24 10:14:21,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:14:21,764 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581670653] [2021-10-24 10:14:21,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:14:21,764 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:14:21,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:14:21,775 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:14:21,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:14:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:14:23,046 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 10:14:24,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 10:14:24,302 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 10:14:24,303 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 10:14:24,304 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:14:24,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:14:24,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:14:24,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 10:14:24,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:14:24,532 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:14:24,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:14:24 BoogieIcfgContainer [2021-10-24 10:14:24,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:14:24,659 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:14:24,659 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:14:24,660 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:14:24,660 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:14:17" (3/4) ... [2021-10-24 10:14:24,662 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 10:14:24,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:14:24,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:14:24,759 INFO L168 Benchmark]: Toolchain (without parser) took 11552.21 ms. Allocated memory was 62.9 MB in the beginning and 111.1 MB in the end (delta: 48.2 MB). Free memory was 42.0 MB in the beginning and 62.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,759 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:14:24,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 990.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.8 MB in the beginning and 39.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,760 INFO L168 Benchmark]: Boogie Procedure Inliner took 145.54 ms. Allocated memory is still 62.9 MB. Free memory was 39.7 MB in the beginning and 35.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,761 INFO L168 Benchmark]: Boogie Preprocessor took 118.27 ms. Allocated memory is still 62.9 MB. Free memory was 35.6 MB in the beginning and 32.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,761 INFO L168 Benchmark]: RCFGBuilder took 2825.71 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 32.7 MB in the beginning and 62.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,762 INFO L168 Benchmark]: TraceAbstraction took 7363.25 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.1 MB in the beginning and 74.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,762 INFO L168 Benchmark]: Witness Printer took 98.23 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 62.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:14:24,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 990.38 ms. Allocated memory is still 62.9 MB. Free memory was 41.8 MB in the beginning and 39.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 145.54 ms. Allocated memory is still 62.9 MB. Free memory was 39.7 MB in the beginning and 35.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 118.27 ms. Allocated memory is still 62.9 MB. Free memory was 35.6 MB in the beginning and 32.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2825.71 ms. Allocated memory was 62.9 MB in the beginning and 92.3 MB in the end (delta: 29.4 MB). Free memory was 32.7 MB in the beginning and 62.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7363.25 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.1 MB in the beginning and 74.2 MB in the end (delta: -12.1 MB). Peak memory consumption was 38.2 MB. Max. memory is 16.1 GB. * Witness Printer took 98.23 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 62.6 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L139] int waterLevel = 1; [L140] int methaneLevelCritical = 0; [L239] int pumpRunning = 0; [L240] int systemActive = 1; [L457] int cleanupTimeShifts = 4; [L792] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] int retValue_acc ; [L532] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L555] int splverifierCounter ; [L556] int tmp ; [L557] int tmp___0 ; [L558] int tmp___1 ; [L559] int tmp___2 ; [L562] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L564] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L566] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L572] tmp = __VERIFIER_nondet_int() [L574] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE waterLevel < 2 [L158] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L582] tmp___0 = __VERIFIER_nondet_int() [L584] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] tmp___2 = __VERIFIER_nondet_int() [L594] COND FALSE !(\read(tmp___2)) [L600] tmp___1 = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L437] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L444] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L246] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L253] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L101] int tmp ; [L102] int tmp___0 ; [L103] int tmp___1 ; [L178] int retValue_acc ; [L181] retValue_acc = methaneLevelCritical [L182] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L107] tmp = isMethaneLevelCritical() [L109] COND FALSE !(\read(tmp)) [L210] int retValue_acc ; [L213] retValue_acc = waterLevel [L214] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L113] tmp___0 = getWaterLevel() [L115] COND TRUE tmp___0 == 2 [L370] int retValue_acc ; [L373] retValue_acc = pumpRunning [L374] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L117] tmp___1 = isPumpRunning() [L119] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L54] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 54]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7148.6ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 35.3ms, AutomataDifference: 858.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 558 SDtfs, 1064 SDslu, 1397 SDs, 0 SdLazy, 201 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 295.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 187.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 151.7ms AutomataMinimizationTime, 5 MinimizatonAttempts, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 175.6ms SsaConstructionTime, 1759.7ms SatisfiabilityAnalysisTime, 1026.5ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 4 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 10:14:24,821 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_803cfd10-6b6e-4f9b-a83c-fa5cc5419843/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...