./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 ............................................................................................................................................ 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_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:24,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:24,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:24,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:24,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:24,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:24,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:24,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:24,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:24,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:24,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:24,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:24,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:24,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:24,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:24,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:24,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:24,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:24,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:24,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:24,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:24,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:24,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:24,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:24,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:24,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:24,267 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:24,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:24,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:24,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:24,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:24,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:24,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:24,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:24,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:24,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:24,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:24,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:24,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:24,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:24,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:24,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:24,342 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:24,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:24,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:24,345 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:24,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:24,345 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:24,345 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:24,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:24,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:24,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:24,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:24,348 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:24,348 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:24,348 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:24,349 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:24,350 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:24,350 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:24,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:24,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:24,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:24,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:24,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:24,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:24,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:24,352 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:24,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:24,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:24,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:24,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:24,355 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:24,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:24,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:24,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:24,356 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:24,357 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:24,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:24,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:24,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:24,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:24,358 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_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 [2021-10-11 02:29:24,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:24,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:24,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:24,784 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:24,785 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:24,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2021-10-11 02:29:24,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/e65407047/563099bf9a724e9bb9c5e0071e5043b9/FLAG34e89f8d5 [2021-10-11 02:29:25,518 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:25,519 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2021-10-11 02:29:25,544 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/e65407047/563099bf9a724e9bb9c5e0071e5043b9/FLAG34e89f8d5 [2021-10-11 02:29:25,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/e65407047/563099bf9a724e9bb9c5e0071e5043b9 [2021-10-11 02:29:25,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:25,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:25,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:25,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:25,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:25,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:25" (1/1) ... [2021-10-11 02:29:25,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4adb74f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:25, skipping insertion in model container [2021-10-11 02:29:25,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:25" (1/1) ... [2021-10-11 02:29:25,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:25,871 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:26,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c[6374,6387] [2021-10-11 02:29:26,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:26,345 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:29:26,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@801e40e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:26, skipping insertion in model container [2021-10-11 02:29:26,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:26,351 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:29:26,354 INFO L168 Benchmark]: Toolchain (without parser) took 597.91 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.8 MB in the beginning and 88.2 MB in the end (delta: -37.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,357 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:26,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.62 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.8 MB in the beginning and 88.2 MB in the end (delta: -37.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:26,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 56.0 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 591.62 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 50.8 MB in the beginning and 88.2 MB in the end (delta: -37.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 564]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:28,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:28,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:28,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:28,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:28,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:28,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:28,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:28,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:28,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:28,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:28,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:28,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:28,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:28,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:28,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:28,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:28,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:28,855 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:28,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:28,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:28,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:28,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:28,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:28,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:28,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:28,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:28,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:28,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:28,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:28,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:28,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:28,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:28,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:28,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:28,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:28,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:28,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:28,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:28,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:28,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:28,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:28,938 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:28,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:28,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:28,941 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:28,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:28,941 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:28,941 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:28,941 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:28,942 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:28,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:28,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:28,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:28,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:28,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:28,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:28,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:28,945 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:28,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:28,946 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:28,946 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:28,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:28,946 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:28,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:28,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:28,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:28,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:28,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:28,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:28,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:28,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:28,948 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:28,948 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:28,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:28,949 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:28,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:28,949 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_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e155c6ff67a88d7a4e2430bd4435eb1c3cafcd71 [2021-10-11 02:29:29,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:29,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:29,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:29,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:29,401 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:29,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2021-10-11 02:29:29,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/eabe8defd/8bb617ec72074a4fbfd635004186042d/FLAG1357716e8 [2021-10-11 02:29:30,052 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:30,053 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c [2021-10-11 02:29:30,067 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/eabe8defd/8bb617ec72074a4fbfd635004186042d/FLAG1357716e8 [2021-10-11 02:29:30,347 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/data/eabe8defd/8bb617ec72074a4fbfd635004186042d [2021-10-11 02:29:30,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:30,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:30,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:30,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:30,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:30,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ab265a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:30, skipping insertion in model container [2021-10-11 02:29:30,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:30" (1/1) ... [2021-10-11 02:29:30,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:30,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:30,651 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c[6374,6387] [2021-10-11 02:29:30,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:30,841 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:29:30,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:30,901 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c[6374,6387] [2021-10-11 02:29:30,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:30,942 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:30,971 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/sv-benchmarks/c/product-lines/minepump_spec4_product37.cil.c[6374,6387] [2021-10-11 02:29:31,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:31,049 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:31,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31 WrapperNode [2021-10-11 02:29:31,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:31,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:31,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:31,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:31,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:31,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:31,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:31,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:31,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... [2021-10-11 02:29:31,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:31,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:31,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:31,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:31,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:31,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:31,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:31,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:33,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:33,848 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-10-11 02:29:33,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:33 BoogieIcfgContainer [2021-10-11 02:29:33,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:33,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:33,852 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:33,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:33,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:30" (1/3) ... [2021-10-11 02:29:33,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b8f5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:33, skipping insertion in model container [2021-10-11 02:29:33,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:31" (2/3) ... [2021-10-11 02:29:33,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29b8f5f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:33, skipping insertion in model container [2021-10-11 02:29:33,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:33" (3/3) ... [2021-10-11 02:29:33,859 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2021-10-11 02:29:33,872 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:33,876 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:29:33,887 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:29:33,911 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:33,911 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:33,912 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:33,912 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:33,912 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:33,912 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:33,912 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:33,912 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:33,925 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2021-10-11 02:29:33,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:29:33,931 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:33,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:33,932 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:33,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:33,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2109695399, now seen corresponding path program 1 times [2021-10-11 02:29:33,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:33,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1225387425] [2021-10-11 02:29:33,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:34,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:29:34,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:34,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:34,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:34,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1225387425] [2021-10-11 02:29:34,340 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:34,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:34,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571593402] [2021-10-11 02:29:34,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:29:34,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:34,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:29:34,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:34,367 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2021-10-11 02:29:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:34,418 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2021-10-11 02:29:34,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:29:34,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:29:34,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:34,430 INFO L225 Difference]: With dead ends: 216 [2021-10-11 02:29:34,430 INFO L226 Difference]: Without dead ends: 107 [2021-10-11 02:29:34,433 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:29:34,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-10-11 02:29:34,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-11 02:29:34,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2021-10-11 02:29:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-10-11 02:29:34,474 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2021-10-11 02:29:34,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:34,475 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-11 02:29:34,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:29:34,475 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2021-10-11 02:29:34,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:29:34,476 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:34,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:34,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:34,692 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:34,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:34,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1093063509, now seen corresponding path program 1 times [2021-10-11 02:29:34,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:34,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750841532] [2021-10-11 02:29:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:34,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:34,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:35,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:35,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:35,029 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1750841532] [2021-10-11 02:29:35,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:35,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:35,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560128742] [2021-10-11 02:29:35,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:35,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:35,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:35,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:35,032 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand 3 states. [2021-10-11 02:29:35,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:35,045 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2021-10-11 02:29:35,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:35,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:29:35,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:35,047 INFO L225 Difference]: With dead ends: 107 [2021-10-11 02:29:35,047 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 02:29:35,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:35,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 02:29:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 02:29:35,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 02:29:35,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2021-10-11 02:29:35,054 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2021-10-11 02:29:35,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:35,055 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2021-10-11 02:29:35,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:35,055 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2021-10-11 02:29:35,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:29:35,056 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:35,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:35,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:35,272 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:35,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:35,273 INFO L82 PathProgramCache]: Analyzing trace with hash -720159228, now seen corresponding path program 1 times [2021-10-11 02:29:35,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:35,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1322880265] [2021-10-11 02:29:35,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:35,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:35,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:35,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:35,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1322880265] [2021-10-11 02:29:35,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:35,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:29:35,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958314079] [2021-10-11 02:29:35,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:35,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:35,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:35,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:35,542 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand 3 states. [2021-10-11 02:29:35,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:35,553 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2021-10-11 02:29:35,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:35,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:29:35,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:35,555 INFO L225 Difference]: With dead ends: 84 [2021-10-11 02:29:35,555 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 02:29:35,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:35,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 02:29:35,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 02:29:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 02:29:35,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-10-11 02:29:35,562 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2021-10-11 02:29:35,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:35,563 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-10-11 02:29:35,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:35,563 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2021-10-11 02:29:35,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:29:35,564 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:35,564 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:35,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:29:35,782 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:35,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:35,783 INFO L82 PathProgramCache]: Analyzing trace with hash 2091202829, now seen corresponding path program 1 times [2021-10-11 02:29:35,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:35,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002846550] [2021-10-11 02:29:35,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:36,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:29:36,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:36,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:36,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:36,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002846550] [2021-10-11 02:29:36,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:36,075 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:36,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703530672] [2021-10-11 02:29:36,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:36,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:36,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:36,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:36,080 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2021-10-11 02:29:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:36,167 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2021-10-11 02:29:36,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:36,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:29:36,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:36,171 INFO L225 Difference]: With dead ends: 105 [2021-10-11 02:29:36,171 INFO L226 Difference]: Without dead ends: 66 [2021-10-11 02:29:36,172 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:36,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-11 02:29:36,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2021-10-11 02:29:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-10-11 02:29:36,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2021-10-11 02:29:36,193 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2021-10-11 02:29:36,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:36,193 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2021-10-11 02:29:36,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:36,193 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2021-10-11 02:29:36,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:36,194 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:36,194 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:36,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:29:36,395 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:36,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1013899842, now seen corresponding path program 1 times [2021-10-11 02:29:36,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:36,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998490008] [2021-10-11 02:29:36,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:36,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:36,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:36,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:36,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [998490008] [2021-10-11 02:29:36,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:36,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:36,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180994355] [2021-10-11 02:29:36,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:36,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:36,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:36,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:36,680 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand 5 states. [2021-10-11 02:29:36,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:36,814 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2021-10-11 02:29:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:36,823 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 02:29:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:36,824 INFO L225 Difference]: With dead ends: 171 [2021-10-11 02:29:36,824 INFO L226 Difference]: Without dead ends: 113 [2021-10-11 02:29:36,825 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:29:36,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-11 02:29:36,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2021-10-11 02:29:36,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-10-11 02:29:36,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2021-10-11 02:29:36,833 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2021-10-11 02:29:36,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:36,834 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2021-10-11 02:29:36,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:36,834 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2021-10-11 02:29:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:29:36,835 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:36,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:37,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:29:37,036 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:37,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:37,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1648611201, now seen corresponding path program 1 times [2021-10-11 02:29:37,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:37,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010490011] [2021-10-11 02:29:37,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:37,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:29:37,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:37,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:37,330 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:37,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010490011] [2021-10-11 02:29:37,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:37,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:37,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356692619] [2021-10-11 02:29:37,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:37,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:37,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:37,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:37,340 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand 5 states. [2021-10-11 02:29:37,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:37,477 INFO L93 Difference]: Finished difference Result 247 states and 346 transitions. [2021-10-11 02:29:37,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:37,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 02:29:37,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:37,480 INFO L225 Difference]: With dead ends: 247 [2021-10-11 02:29:37,480 INFO L226 Difference]: Without dead ends: 183 [2021-10-11 02:29:37,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:37,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-10-11 02:29:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 113. [2021-10-11 02:29:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-10-11 02:29:37,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 152 transitions. [2021-10-11 02:29:37,517 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 152 transitions. Word has length 30 [2021-10-11 02:29:37,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:37,517 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 152 transitions. [2021-10-11 02:29:37,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:37,517 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 152 transitions. [2021-10-11 02:29:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:29:37,521 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:37,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:37,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:29:37,737 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:37,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:37,738 INFO L82 PathProgramCache]: Analyzing trace with hash -359204993, now seen corresponding path program 1 times [2021-10-11 02:29:37,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:37,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152829520] [2021-10-11 02:29:37,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:37,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:29:37,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:37,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:37,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152829520] [2021-10-11 02:29:37,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:37,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:29:37,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796435718] [2021-10-11 02:29:37,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:37,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:37,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:37,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:37,992 INFO L87 Difference]: Start difference. First operand 113 states and 152 transitions. Second operand 4 states. [2021-10-11 02:29:39,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:39,332 INFO L93 Difference]: Finished difference Result 290 states and 401 transitions. [2021-10-11 02:29:39,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:39,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 02:29:39,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:39,340 INFO L225 Difference]: With dead ends: 290 [2021-10-11 02:29:39,340 INFO L226 Difference]: Without dead ends: 226 [2021-10-11 02:29:39,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:39,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-11 02:29:39,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 219. [2021-10-11 02:29:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2021-10-11 02:29:39,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 297 transitions. [2021-10-11 02:29:39,367 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 297 transitions. Word has length 31 [2021-10-11 02:29:39,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:39,368 INFO L481 AbstractCegarLoop]: Abstraction has 219 states and 297 transitions. [2021-10-11 02:29:39,368 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:39,368 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 297 transitions. [2021-10-11 02:29:39,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:29:39,369 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:39,369 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:39,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:29:39,587 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:39,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:39,587 INFO L82 PathProgramCache]: Analyzing trace with hash -101039555, now seen corresponding path program 1 times [2021-10-11 02:29:39,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:39,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281903670] [2021-10-11 02:29:39,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:39,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:39,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:39,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:39,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:39,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:39,811 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281903670] [2021-10-11 02:29:39,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:39,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:39,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901782106] [2021-10-11 02:29:39,812 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:39,812 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:39,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:39,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:39,813 INFO L87 Difference]: Start difference. First operand 219 states and 297 transitions. Second operand 4 states. [2021-10-11 02:29:39,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:39,907 INFO L93 Difference]: Finished difference Result 576 states and 793 transitions. [2021-10-11 02:29:39,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:29:39,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 02:29:39,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:39,911 INFO L225 Difference]: With dead ends: 576 [2021-10-11 02:29:39,911 INFO L226 Difference]: Without dead ends: 403 [2021-10-11 02:29:39,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:39,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-10-11 02:29:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 220. [2021-10-11 02:29:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2021-10-11 02:29:39,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 297 transitions. [2021-10-11 02:29:39,938 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 297 transitions. Word has length 31 [2021-10-11 02:29:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:39,938 INFO L481 AbstractCegarLoop]: Abstraction has 220 states and 297 transitions. [2021-10-11 02:29:39,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:39,939 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2021-10-11 02:29:39,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:29:39,940 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:39,940 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:40,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:29:40,160 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:40,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1138389688, now seen corresponding path program 1 times [2021-10-11 02:29:40,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:40,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461824221] [2021-10-11 02:29:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:40,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:29:40,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:40,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:40,423 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461824221] [2021-10-11 02:29:40,423 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:40,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:40,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469919858] [2021-10-11 02:29:40,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:40,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:40,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:40,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:40,426 INFO L87 Difference]: Start difference. First operand 220 states and 297 transitions. Second operand 6 states. [2021-10-11 02:29:42,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:42,096 INFO L93 Difference]: Finished difference Result 445 states and 600 transitions. [2021-10-11 02:29:42,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:29:42,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2021-10-11 02:29:42,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:42,099 INFO L225 Difference]: With dead ends: 445 [2021-10-11 02:29:42,099 INFO L226 Difference]: Without dead ends: 271 [2021-10-11 02:29:42,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:29:42,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2021-10-11 02:29:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 216. [2021-10-11 02:29:42,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2021-10-11 02:29:42,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 289 transitions. [2021-10-11 02:29:42,124 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 289 transitions. Word has length 31 [2021-10-11 02:29:42,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:42,124 INFO L481 AbstractCegarLoop]: Abstraction has 216 states and 289 transitions. [2021-10-11 02:29:42,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:42,125 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 289 transitions. [2021-10-11 02:29:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:29:42,134 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:42,134 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:42,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:29:42,349 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:42,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:42,349 INFO L82 PathProgramCache]: Analyzing trace with hash 2043138488, now seen corresponding path program 1 times [2021-10-11 02:29:42,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:42,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [569642213] [2021-10-11 02:29:42,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:42,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:29:42,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:29:42,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:42,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [569642213] [2021-10-11 02:29:42,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:42,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:29:42,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543874139] [2021-10-11 02:29:42,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:29:42,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:42,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:29:42,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:29:42,660 INFO L87 Difference]: Start difference. First operand 216 states and 289 transitions. Second operand 4 states. [2021-10-11 02:29:42,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:42,733 INFO L93 Difference]: Finished difference Result 469 states and 629 transitions. [2021-10-11 02:29:42,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:29:42,734 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2021-10-11 02:29:42,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:42,737 INFO L225 Difference]: With dead ends: 469 [2021-10-11 02:29:42,737 INFO L226 Difference]: Without dead ends: 259 [2021-10-11 02:29:42,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:42,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-10-11 02:29:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 193. [2021-10-11 02:29:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2021-10-11 02:29:42,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 252 transitions. [2021-10-11 02:29:42,761 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 252 transitions. Word has length 48 [2021-10-11 02:29:42,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:42,762 INFO L481 AbstractCegarLoop]: Abstraction has 193 states and 252 transitions. [2021-10-11 02:29:42,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:29:42,762 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 252 transitions. [2021-10-11 02:29:42,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:29:42,763 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:42,763 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:42,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:29:42,985 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:42,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1197109900, now seen corresponding path program 1 times [2021-10-11 02:29:42,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:42,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727064102] [2021-10-11 02:29:42,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:43,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:43,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:43,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:29:43,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:43,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727064102] [2021-10-11 02:29:43,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:43,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:43,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927247956] [2021-10-11 02:29:43,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:29:43,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:43,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:29:43,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:29:43,278 INFO L87 Difference]: Start difference. First operand 193 states and 252 transitions. Second operand 6 states. [2021-10-11 02:29:43,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:43,522 INFO L93 Difference]: Finished difference Result 1021 states and 1376 transitions. [2021-10-11 02:29:43,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:29:43,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2021-10-11 02:29:43,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:43,529 INFO L225 Difference]: With dead ends: 1021 [2021-10-11 02:29:43,529 INFO L226 Difference]: Without dead ends: 834 [2021-10-11 02:29:43,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:29:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2021-10-11 02:29:43,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 378. [2021-10-11 02:29:43,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2021-10-11 02:29:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 488 transitions. [2021-10-11 02:29:43,586 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 488 transitions. Word has length 49 [2021-10-11 02:29:43,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:43,586 INFO L481 AbstractCegarLoop]: Abstraction has 378 states and 488 transitions. [2021-10-11 02:29:43,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:29:43,587 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 488 transitions. [2021-10-11 02:29:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-11 02:29:43,587 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:43,587 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:43,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:29:43,800 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash 2022214963, now seen corresponding path program 1 times [2021-10-11 02:29:43,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:43,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862156391] [2021-10-11 02:29:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:44,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:44,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:44,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,226 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862156391] [2021-10-11 02:29:44,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [520797797] [2021-10-11 02:29:44,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:44,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:44,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199608132] [2021-10-11 02:29:44,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:29:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:44,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:29:44,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:44,784 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:29:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:29:44,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:29:44,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:29:44,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388357654] [2021-10-11 02:29:44,840 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:29:44,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:44,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:29:44,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:29:44,841 INFO L87 Difference]: Start difference. First operand 378 states and 488 transitions. Second operand 10 states. [2021-10-11 02:29:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:47,120 INFO L93 Difference]: Finished difference Result 1833 states and 2395 transitions. [2021-10-11 02:29:47,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:29:47,121 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2021-10-11 02:29:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:47,131 INFO L225 Difference]: With dead ends: 1833 [2021-10-11 02:29:47,131 INFO L226 Difference]: Without dead ends: 1507 [2021-10-11 02:29:47,133 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:29:47,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2021-10-11 02:29:47,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 514. [2021-10-11 02:29:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2021-10-11 02:29:47,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 680 transitions. [2021-10-11 02:29:47,217 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 680 transitions. Word has length 50 [2021-10-11 02:29:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:47,218 INFO L481 AbstractCegarLoop]: Abstraction has 514 states and 680 transitions. [2021-10-11 02:29:47,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:29:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 680 transitions. [2021-10-11 02:29:47,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-11 02:29:47,220 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:47,220 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:47,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt,13 mathsat -unsat_core_generation=3,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:29:47,838 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash 866267864, now seen corresponding path program 2 times [2021-10-11 02:29:47,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:47,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [548153896] [2021-10-11 02:29:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:49,434 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:50,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:51,094 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:29:51,095 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:51,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2021-10-11 02:29:51,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:51 BoogieIcfgContainer [2021-10-11 02:29:51,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:51,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:51,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:51,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:51,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:33" (3/4) ... [2021-10-11 02:29:51,492 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:51,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8f2d09d-8ef9-4fb6-8548-a944b8465230/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:51,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:51,686 INFO L168 Benchmark]: Toolchain (without parser) took 21334.87 ms. Allocated memory was 56.6 MB in the beginning and 119.5 MB in the end (delta: 62.9 MB). Free memory was 34.0 MB in the beginning and 74.1 MB in the end (delta: -40.2 MB). Peak memory consumption was 66.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,687 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:51,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.8 MB in the beginning and 36.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,688 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.10 ms. Allocated memory is still 69.2 MB. Free memory was 36.4 MB in the beginning and 51.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,688 INFO L168 Benchmark]: Boogie Preprocessor took 61.63 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,689 INFO L168 Benchmark]: RCFGBuilder took 2632.37 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 69.8 MB in the end (delta: -21.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,689 INFO L168 Benchmark]: TraceAbstraction took 17637.05 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.8 MB in the beginning and 44.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,690 INFO L168 Benchmark]: Witness Printer took 195.73 ms. Allocated memory is still 119.5 MB. Free memory was 44.7 MB in the beginning and 74.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:51,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 56.6 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 44.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 697.97 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.8 MB in the beginning and 36.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.10 ms. Allocated memory is still 69.2 MB. Free memory was 36.4 MB in the beginning and 51.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.63 ms. Allocated memory is still 69.2 MB. Free memory was 51.0 MB in the beginning and 48.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2632.37 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 48.4 MB in the beginning and 69.8 MB in the end (delta: -21.4 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17637.05 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.8 MB in the beginning and 44.7 MB in the end (delta: 25.1 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. * Witness Printer took 195.73 ms. Allocated memory is still 119.5 MB. Free memory was 44.7 MB in the beginning and 74.1 MB in the end (delta: -29.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 436]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L157] int pumpRunning = 0; [L158] int systemActive = 1; [L336] int cleanupTimeShifts = 4; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L705] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L409] int retValue_acc ; [L410] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L416] tmp = valid_product() [L418] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L94] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L96] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L460] COND TRUE waterLevel < 2 [L461] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE \read(systemActive) [L220] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L223] COND FALSE !(\read(pumpRunning)) [L194] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] COND TRUE ! pumpRunning [L317] int retValue_acc ; [L318] int tmp ; [L319] int tmp___0 ; [L522] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] COND FALSE !(waterLevel < 2) [L529] retValue_acc = 0 [L530] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] tmp = isHighWaterSensorDry() [L325] COND FALSE !(\read(tmp)) [L328] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L330] retValue_acc = tmp___0 [L331] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L199] tmp = isHighWaterLevel() [L201] COND TRUE \read(tmp) [L248] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L903] int tmp ; [L904] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L908] tmp = getWaterLevel() [L910] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L94] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L96] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L102] tmp = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L165] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] COND TRUE \read(systemActive) [L220] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] COND TRUE \read(pumpRunning) [L261] int retValue_acc ; [L481] int retValue_acc ; [L484] retValue_acc = methaneLevelCritical [L485] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L265] retValue_acc = isMethaneLevelCritical() [L267] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L225] tmp = isMethaneAlarm() [L227] COND FALSE !(\read(tmp)) [L194] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L197] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L903] int tmp ; [L904] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L908] tmp = getWaterLevel() [L910] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L94] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L96] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L102] tmp = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L448] COND TRUE waterLevel > 0 [L449] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] COND TRUE \read(systemActive) [L220] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L223] COND TRUE \read(pumpRunning) [L261] int retValue_acc ; [L481] int retValue_acc ; [L484] retValue_acc = methaneLevelCritical [L485] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L265] retValue_acc = isMethaneLevelCritical() [L267] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L225] tmp = isMethaneAlarm() [L227] COND FALSE !(\read(tmp)) [L194] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L197] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L903] int tmp ; [L904] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L908] tmp = getWaterLevel() [L910] COND TRUE tmp == 0 [L272] int retValue_acc ; [L275] retValue_acc = pumpRunning [L276] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L912] tmp___0 = isPumpRunning() [L914] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L436] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 6.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1253 SDtfs, 2182 SDslu, 2289 SDs, 0 SdLazy, 444 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 650 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=514occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 1875 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 548 NumberOfCodeBlocks, 548 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 85740 SizeOfPredicates, 29 NumberOfNonLiveVariables, 2996 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 58/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...