./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.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_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 49ee68200af8723d15a4fe21e3a4e6e289306e92 ............................................................................................................................................ 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 49ee68200af8723d15a4fe21e3a4e6e289306e92 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:21:36,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:36,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:37,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:37,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:37,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:37,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:37,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:37,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:37,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:37,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:37,070 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:37,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:37,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:37,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:37,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:37,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:37,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:37,083 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:37,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:37,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:37,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:37,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:37,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:37,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:37,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:37,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:37,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:37,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:37,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:37,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:37,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:37,127 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:37,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:37,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:37,132 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:37,133 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:37,133 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:37,134 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:37,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:37,137 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:37,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:21:37,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:37,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:37,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:37,200 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:37,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:37,200 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:37,201 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:21:37,201 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:37,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:37,202 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:21:37,203 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:21:37,203 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:37,204 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:21:37,204 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:21:37,204 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:21:37,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:37,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:37,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:21:37,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:37,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:37,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:37,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:37,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:37,208 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:37,208 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:37,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:37,208 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:37,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:37,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:37,209 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:37,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:37,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:37,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:37,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:37,211 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:21:37,212 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:21:37,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:37,212 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:37,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:37,213 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49ee68200af8723d15a4fe21e3a4e6e289306e92 [2021-10-11 02:21:37,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:37,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:37,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:37,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:37,581 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:37,582 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-11 02:21:37,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/b3829c2c7/d2a1dcfdd5c24d98b7d94503d9c83df2/FLAG5bceeac18 [2021-10-11 02:21:38,212 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:38,213 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-11 02:21:38,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/b3829c2c7/d2a1dcfdd5c24d98b7d94503d9c83df2/FLAG5bceeac18 [2021-10-11 02:21:38,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/b3829c2c7/d2a1dcfdd5c24d98b7d94503d9c83df2 [2021-10-11 02:21:38,535 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:38,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:38,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:38,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:38,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:38,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:38" (1/1) ... [2021-10-11 02:21:38,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2a2413 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:38, skipping insertion in model container [2021-10-11 02:21:38,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:38" (1/1) ... [2021-10-11 02:21:38,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:38,635 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:38,973 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-10-11 02:21:39,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:39,102 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 02:21:39,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3ceed00e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:39, skipping insertion in model container [2021-10-11 02:21:39,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:39,105 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:21:39,109 INFO L168 Benchmark]: Toolchain (without parser) took 570.07 ms. Allocated memory is still 90.2 MB. Free memory was 56.6 MB in the beginning and 64.0 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:39,111 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 61.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:39,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.95 ms. Allocated memory is still 90.2 MB. Free memory was 56.4 MB in the beginning and 64.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:39,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 90.2 MB. Free memory was 61.4 MB in the beginning and 61.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.95 ms. Allocated memory is still 90.2 MB. Free memory was 56.4 MB in the beginning and 64.0 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:21:41,863 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:21:41,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:21:41,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:21:41,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:21:41,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:21:41,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:21:41,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:21:41,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:21:41,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:21:41,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:21:41,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:21:41,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:21:41,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:21:41,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:21:41,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:21:41,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:21:41,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:21:41,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:21:41,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:21:41,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:21:41,995 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:21:41,998 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:21:42,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:21:42,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:21:42,012 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:21:42,012 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:21:42,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:21:42,016 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:21:42,017 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:21:42,018 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:21:42,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:21:42,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:21:42,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:21:42,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:21:42,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:21:42,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:21:42,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:21:42,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:21:42,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:21:42,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:21:42,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:21:42,076 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:21:42,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:21:42,078 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:21:42,078 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:21:42,079 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:21:42,079 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:21:42,079 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:21:42,080 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:21:42,080 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:21:42,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:21:42,083 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:21:42,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:21:42,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:21:42,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:21:42,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:21:42,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:21:42,085 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:21:42,085 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:21:42,085 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:21:42,085 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:21:42,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:21:42,086 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:21:42,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:21:42,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:21:42,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:21:42,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:21:42,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:21:42,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:21:42,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:21:42,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:21:42,089 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:21:42,089 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:21:42,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:21:42,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:21:42,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:21:42,090 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49ee68200af8723d15a4fe21e3a4e6e289306e92 [2021-10-11 02:21:42,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:21:42,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:21:42,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:21:42,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:21:42,512 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:21:42,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-11 02:21:42,585 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/4aa0a24b9/b8cf9efdc17246d690fdfcc79886330f/FLAG6a789a643 [2021-10-11 02:21:43,163 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:21:43,167 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c [2021-10-11 02:21:43,185 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/4aa0a24b9/b8cf9efdc17246d690fdfcc79886330f/FLAG6a789a643 [2021-10-11 02:21:43,471 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/data/4aa0a24b9/b8cf9efdc17246d690fdfcc79886330f [2021-10-11 02:21:43,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:21:43,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:21:43,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:43,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:21:43,486 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:21:43,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:43" (1/1) ... [2021-10-11 02:21:43,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75b72101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:43, skipping insertion in model container [2021-10-11 02:21:43,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:21:43" (1/1) ... [2021-10-11 02:21:43,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:21:43,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:43,902 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-10-11 02:21:43,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:44,001 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:21:44,009 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:21:44,065 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-10-11 02:21:44,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:44,116 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:21:44,199 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_505dcf7e-2cca-4446-b3d8-15964de0dda5/sv-benchmarks/c/product-lines/minepump_spec1_product33.cil.c[10968,10981] [2021-10-11 02:21:44,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:21:44,253 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:21:44,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44 WrapperNode [2021-10-11 02:21:44,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:21:44,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:44,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:21:44,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:21:44,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,295 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:21:44,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:21:44,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:21:44,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:21:44,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... [2021-10-11 02:21:44,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:21:44,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:21:44,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:21:44,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:21:44,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:21:44,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:21:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:21:44,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:21:47,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:21:47,175 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-11 02:21:47,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:47 BoogieIcfgContainer [2021-10-11 02:21:47,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:21:47,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:21:47,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:21:47,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:21:47,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:21:43" (1/3) ... [2021-10-11 02:21:47,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f80f3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:47, skipping insertion in model container [2021-10-11 02:21:47,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:21:44" (2/3) ... [2021-10-11 02:21:47,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f80f3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:21:47, skipping insertion in model container [2021-10-11 02:21:47,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:47" (3/3) ... [2021-10-11 02:21:47,187 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product33.cil.c [2021-10-11 02:21:47,202 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:21:47,207 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:21:47,219 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:21:47,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:21:47,251 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:21:47,251 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:21:47,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:21:47,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:21:47,252 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:21:47,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:21:47,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:21:47,273 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2021-10-11 02:21:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:21:47,282 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:47,283 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:47,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:47,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:47,292 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2021-10-11 02:21:47,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:47,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133200911] [2021-10-11 02:21:47,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:47,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:21:47,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:47,655 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 02:21:47,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:47,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133200911] [2021-10-11 02:21:47,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:47,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:47,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437443413] [2021-10-11 02:21:47,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:21:47,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:47,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:21:47,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:21:47,687 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2021-10-11 02:21:47,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:47,743 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2021-10-11 02:21:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:21:47,745 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:21:47,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:47,757 INFO L225 Difference]: With dead ends: 150 [2021-10-11 02:21:47,758 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 02:21:47,762 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 02:21:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 02:21:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-11 02:21:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 02:21:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-11 02:21:47,808 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2021-10-11 02:21:47,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:47,808 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-11 02:21:47,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:21:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-11 02:21:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:21:47,810 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:47,810 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 02:21:48,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:21:48,027 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:48,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:48,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2021-10-11 02:21:48,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:48,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861834366] [2021-10-11 02:21:48,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:48,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:48,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:48,289 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 02:21:48,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:48,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1861834366] [2021-10-11 02:21:48,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:48,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:48,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950411225] [2021-10-11 02:21:48,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:48,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:48,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:48,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:48,294 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2021-10-11 02:21:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:48,305 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2021-10-11 02:21:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:48,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:21:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:48,307 INFO L225 Difference]: With dead ends: 74 [2021-10-11 02:21:48,307 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:21:48,308 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 02:21:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:21:48,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:21:48,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:21:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-10-11 02:21:48,314 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2021-10-11 02:21:48,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:48,315 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-10-11 02:21:48,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:48,315 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-10-11 02:21:48,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:21:48,316 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:48,316 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 02:21:48,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:21:48,530 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:48,531 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2021-10-11 02:21:48,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:48,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [328973116] [2021-10-11 02:21:48,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:48,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:48,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:48,748 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 02:21:48,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:48,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [328973116] [2021-10-11 02:21:48,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:48,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:48,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143172599] [2021-10-11 02:21:48,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:48,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:48,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:48,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:48,752 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 3 states. [2021-10-11 02:21:48,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:48,760 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2021-10-11 02:21:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:48,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:21:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:48,761 INFO L225 Difference]: With dead ends: 62 [2021-10-11 02:21:48,762 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:21:48,762 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 02:21:48,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:21:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:21:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:21:48,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-10-11 02:21:48,786 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2021-10-11 02:21:48,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:48,787 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-10-11 02:21:48,787 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:48,787 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-10-11 02:21:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:21:48,788 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:48,788 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:49,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:21:49,005 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:49,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:49,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2021-10-11 02:21:49,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:49,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348575613] [2021-10-11 02:21:49,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:49,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:49,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:49,224 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 02:21:49,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:49,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348575613] [2021-10-11 02:21:49,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:49,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:21:49,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399525657] [2021-10-11 02:21:49,226 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:49,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:49,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:49,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:49,227 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2021-10-11 02:21:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:49,276 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2021-10-11 02:21:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:49,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:21:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:49,278 INFO L225 Difference]: With dead ends: 83 [2021-10-11 02:21:49,278 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 02:21:49,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:49,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 02:21:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-10-11 02:21:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:21:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2021-10-11 02:21:49,288 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2021-10-11 02:21:49,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:49,288 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2021-10-11 02:21:49,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2021-10-11 02:21:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:21:49,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:49,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:49,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:21:49,503 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:49,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2021-10-11 02:21:49,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:49,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1359071077] [2021-10-11 02:21:49,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:49,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:49,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:49,778 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 02:21:49,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:49,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1359071077] [2021-10-11 02:21:49,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:49,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:21:49,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624488391] [2021-10-11 02:21:49,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:49,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:49,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:49,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:49,781 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2021-10-11 02:21:49,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:49,848 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2021-10-11 02:21:49,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:21:49,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:21:49,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:49,850 INFO L225 Difference]: With dead ends: 139 [2021-10-11 02:21:49,851 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 02:21:49,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 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 02:21:49,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 02:21:49,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2021-10-11 02:21:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 02:21:49,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-11 02:21:49,861 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2021-10-11 02:21:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:49,861 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-11 02:21:49,862 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-11 02:21:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:21:49,863 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:49,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:50,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:21:50,079 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:50,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:50,079 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2021-10-11 02:21:50,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:50,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214835646] [2021-10-11 02:21:50,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:50,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:50,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:50,383 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 02:21:50,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:50,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214835646] [2021-10-11 02:21:50,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:50,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:21:50,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940257608] [2021-10-11 02:21:50,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:50,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:50,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:50,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:50,394 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2021-10-11 02:21:50,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:50,547 INFO L93 Difference]: Finished difference Result 270 states and 384 transitions. [2021-10-11 02:21:50,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:21:50,548 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:21:50,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:50,552 INFO L225 Difference]: With dead ends: 270 [2021-10-11 02:21:50,552 INFO L226 Difference]: Without dead ends: 220 [2021-10-11 02:21:50,556 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:21:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-10-11 02:21:50,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 100. [2021-10-11 02:21:50,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:21:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 137 transitions. [2021-10-11 02:21:50,593 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 137 transitions. Word has length 29 [2021-10-11 02:21:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:50,593 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 137 transitions. [2021-10-11 02:21:50,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:50,593 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2021-10-11 02:21:50,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:21:50,595 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:50,595 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 02:21:50,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:21:50,798 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:50,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:50,799 INFO L82 PathProgramCache]: Analyzing trace with hash -863305781, now seen corresponding path program 1 times [2021-10-11 02:21:50,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:50,800 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481872660] [2021-10-11 02:21:50,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:51,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:21:51,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:51,083 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 02:21:51,083 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:51,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481872660] [2021-10-11 02:21:51,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:51,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:21:51,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241174995] [2021-10-11 02:21:51,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:21:51,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:51,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:21:51,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:21:51,086 INFO L87 Difference]: Start difference. First operand 100 states and 137 transitions. Second operand 5 states. [2021-10-11 02:21:51,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:51,295 INFO L93 Difference]: Finished difference Result 280 states and 386 transitions. [2021-10-11 02:21:51,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:21:51,296 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 02:21:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:51,301 INFO L225 Difference]: With dead ends: 280 [2021-10-11 02:21:51,301 INFO L226 Difference]: Without dead ends: 278 [2021-10-11 02:21:51,310 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:21:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-10-11 02:21:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 100. [2021-10-11 02:21:51,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:21:51,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 136 transitions. [2021-10-11 02:21:51,338 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 136 transitions. Word has length 30 [2021-10-11 02:21:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:51,338 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 136 transitions. [2021-10-11 02:21:51,338 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:21:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 136 transitions. [2021-10-11 02:21:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:21:51,340 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:51,340 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 02:21:51,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:21:51,556 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:51,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:51,557 INFO L82 PathProgramCache]: Analyzing trace with hash 376123462, now seen corresponding path program 1 times [2021-10-11 02:21:51,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:51,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [631293494] [2021-10-11 02:21:51,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:51,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:21:51,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:51,841 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 02:21:51,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:51,842 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [631293494] [2021-10-11 02:21:51,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:51,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:21:51,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685910185] [2021-10-11 02:21:51,843 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:21:51,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:51,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:21:51,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:21:51,844 INFO L87 Difference]: Start difference. First operand 100 states and 136 transitions. Second operand 4 states. [2021-10-11 02:21:51,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:51,897 INFO L93 Difference]: Finished difference Result 240 states and 326 transitions. [2021-10-11 02:21:51,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:21:51,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:21:51,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:51,899 INFO L225 Difference]: With dead ends: 240 [2021-10-11 02:21:51,900 INFO L226 Difference]: Without dead ends: 146 [2021-10-11 02:21:51,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 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 02:21:51,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-10-11 02:21:51,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 104. [2021-10-11 02:21:51,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-10-11 02:21:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 140 transitions. [2021-10-11 02:21:51,920 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 140 transitions. Word has length 30 [2021-10-11 02:21:51,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:51,920 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 140 transitions. [2021-10-11 02:21:51,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:21:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 140 transitions. [2021-10-11 02:21:51,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:21:51,922 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:51,922 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:21:52,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:21:52,145 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:52,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:52,147 INFO L82 PathProgramCache]: Analyzing trace with hash 634288900, now seen corresponding path program 1 times [2021-10-11 02:21:52,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:52,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1958791944] [2021-10-11 02:21:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:52,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:21:52,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:21:52,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:21:52,438 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 02:21:52,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:21:52,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1958791944] [2021-10-11 02:21:52,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:21:52,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:21:52,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080361631] [2021-10-11 02:21:52,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:21:52,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:21:52,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:21:52,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:21:52,442 INFO L87 Difference]: Start difference. First operand 104 states and 140 transitions. Second operand 3 states. [2021-10-11 02:21:52,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:21:52,488 INFO L93 Difference]: Finished difference Result 250 states and 336 transitions. [2021-10-11 02:21:52,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:21:52,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-10-11 02:21:52,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:21:52,492 INFO L225 Difference]: With dead ends: 250 [2021-10-11 02:21:52,492 INFO L226 Difference]: Without dead ends: 152 [2021-10-11 02:21:52,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 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 02:21:52,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-10-11 02:21:52,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2021-10-11 02:21:52,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2021-10-11 02:21:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 198 transitions. [2021-10-11 02:21:52,523 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 198 transitions. Word has length 30 [2021-10-11 02:21:52,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:21:52,523 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 198 transitions. [2021-10-11 02:21:52,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:21:52,524 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 198 transitions. [2021-10-11 02:21:52,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:21:52,531 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:21:52,532 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 02:21:52,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:21:52,751 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:21:52,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:21:52,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1373527294, now seen corresponding path program 1 times [2021-10-11 02:21:52,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:21:52,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446552881] [2021-10-11 02:21:52,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/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 02:21:54,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:54,004 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:21:55,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:21:55,878 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:21:55,879 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:21:56,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:21:56,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:21:56 BoogieIcfgContainer [2021-10-11 02:21:56,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:21:56,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:21:56,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:21:56,277 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:21:56,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:21:47" (3/4) ... [2021-10-11 02:21:56,280 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:21:56,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_505dcf7e-2cca-4446-b3d8-15964de0dda5/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:21:56,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:21:56,393 INFO L168 Benchmark]: Toolchain (without parser) took 12914.47 ms. Allocated memory was 69.2 MB in the beginning and 107.0 MB in the end (delta: 37.7 MB). Free memory was 46.4 MB in the beginning and 63.1 MB in the end (delta: -16.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,393 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 75.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:21:56,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.16 ms. Allocated memory is still 69.2 MB. Free memory was 46.2 MB in the beginning and 37.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 69.2 MB. Free memory was 37.0 MB in the beginning and 34.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,395 INFO L168 Benchmark]: Boogie Preprocessor took 80.90 ms. Allocated memory is still 69.2 MB. Free memory was 34.1 MB in the beginning and 51.6 MB in the end (delta: -17.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,396 INFO L168 Benchmark]: RCFGBuilder took 2744.84 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 51.6 MB in the beginning and 56.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,396 INFO L168 Benchmark]: TraceAbstraction took 9097.65 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 76.7 MB in the end (delta: -20.3 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,397 INFO L168 Benchmark]: Witness Printer took 114.37 ms. Allocated memory is still 107.0 MB. Free memory was 76.7 MB in the beginning and 63.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:21:56,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 75.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 772.16 ms. Allocated memory is still 69.2 MB. Free memory was 46.2 MB in the beginning and 37.0 MB in the end (delta: 9.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.56 ms. Allocated memory is still 69.2 MB. Free memory was 37.0 MB in the beginning and 34.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.90 ms. Allocated memory is still 69.2 MB. Free memory was 34.1 MB in the beginning and 51.6 MB in the end (delta: -17.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2744.84 ms. Allocated memory was 69.2 MB in the beginning and 88.1 MB in the end (delta: 18.9 MB). Free memory was 51.6 MB in the beginning and 56.8 MB in the end (delta: -5.3 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9097.65 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 76.7 MB in the end (delta: -20.3 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * Witness Printer took 114.37 ms. Allocated memory is still 107.0 MB. Free memory was 76.7 MB in the beginning and 63.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 412]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L685] int cleanupTimeShifts = 4; [L808] int waterLevel = 1; [L809] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L758] int retValue_acc ; [L759] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] int retValue_acc ; [L679] retValue_acc = 1 [L680] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L765] tmp = valid_product() [L767] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L583] int splverifierCounter ; [L584] int tmp ; [L585] int tmp___0 ; [L586] int tmp___1 ; [L587] int tmp___2 ; [L590] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L592] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L600] tmp = __VERIFIER_nondet_int() [L602] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] COND TRUE waterLevel < 2 [L827] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L610] tmp___0 = __VERIFIER_nondet_int() [L612] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L838] COND FALSE !(\read(methaneLevelCritical)) [L841] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp___2 = __VERIFIER_nondet_int() [L622] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L463] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L888] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L891] COND FALSE !(waterLevel < 2) [L895] retValue_acc = 0 [L896] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L491] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] int tmp ; [L783] int tmp___0 ; [L847] int retValue_acc ; [L850] retValue_acc = methaneLevelCritical [L851] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L787] tmp = isMethaneLevelCritical() [L789] COND TRUE \read(tmp) [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L791] tmp___0 = isPumpRunning() [L793] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L412] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 579 SDtfs, 650 SDslu, 752 SDs, 0 SdLazy, 98 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 233 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 378 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 11493 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1818 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...