./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 dbf7149ba5f2c2b45723d578c2ed612c4c7ff3d9 ............................................................................................................................................ 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 dbf7149ba5f2c2b45723d578c2ed612c4c7ff3d9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:26:36,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:36,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:36,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:36,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:36,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:36,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:36,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:36,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:36,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:36,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:36,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:36,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:36,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:36,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:36,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:36,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:36,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:36,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:36,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:36,192 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:36,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:36,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:36,202 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:36,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:36,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:36,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:36,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:36,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:36,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:36,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:36,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:36,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:36,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:36,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:36,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:36,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:36,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:36,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:36,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:36,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:36,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:36,281 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:36,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:36,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:36,283 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:36,284 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:36,284 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:36,284 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:36,284 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:36,291 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:36,291 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:36,291 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:36,291 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:36,291 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:36,292 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:36,292 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:36,293 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:36,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:36,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:36,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:36,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:36,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:36,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:36,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:36,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:36,296 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:36,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:36,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:36,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:36,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:36,297 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf7149ba5f2c2b45723d578c2ed612c4c7ff3d9 [2021-10-11 02:26:36,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:36,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:36,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:36,569 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:36,570 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:36,571 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2021-10-11 02:26:36,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/2ce034e37/0838aea9b32c4547ac2b02e6a4119e5c/FLAG0ea884bec [2021-10-11 02:26:37,200 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:37,203 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2021-10-11 02:26:37,218 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/2ce034e37/0838aea9b32c4547ac2b02e6a4119e5c/FLAG0ea884bec [2021-10-11 02:26:37,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/2ce034e37/0838aea9b32c4547ac2b02e6a4119e5c [2021-10-11 02:26:37,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:37,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:37,507 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:37,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:37,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:37,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:37" (1/1) ... [2021-10-11 02:26:37,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:37, skipping insertion in model container [2021-10-11 02:26:37,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:37" (1/1) ... [2021-10-11 02:26:37,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:37,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:37,910 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-10-11 02:26:38,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:38,037 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 02:26:38,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@f0a59ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:38, skipping insertion in model container [2021-10-11 02:26:38,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:38,039 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:26:38,044 INFO L168 Benchmark]: Toolchain (without parser) took 537.97 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 63.2 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:38,046 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:38,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.68 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 63.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:38,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 44.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.68 ms. Allocated memory is still 90.2 MB. Free memory was 58.3 MB in the beginning and 63.3 MB in the end (delta: -5.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 663]: 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 02:26:40,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:40,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:40,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:40,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:40,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:40,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:40,461 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:40,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:40,465 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:40,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:40,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:40,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:40,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:40,471 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:40,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:40,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:40,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:40,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:40,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:40,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:40,483 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:40,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:40,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:40,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:40,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:40,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:40,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:40,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:40,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:40,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:40,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:40,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:40,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:40,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:40,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:40,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:40,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:40,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:40,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:40,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:40,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:26:40,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:40,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:40,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:40,552 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:40,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:40,553 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:40,553 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:40,553 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:40,554 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:40,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:40,557 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:40,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:40,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:40,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:40,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:40,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:40,558 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:40,558 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:26:40,559 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:26:40,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:40,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:40,559 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:40,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:40,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:40,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:26:40,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:40,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:40,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:40,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:40,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:40,561 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:26:40,562 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:40,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:40,562 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:40,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:40,563 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbf7149ba5f2c2b45723d578c2ed612c4c7ff3d9 [2021-10-11 02:26:40,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:40,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:41,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:41,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:41,006 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:41,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2021-10-11 02:26:41,099 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/b9ce7a93a/aba1e21ed543413283d5d307c1178958/FLAGd1b198722 [2021-10-11 02:26:41,762 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:41,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2021-10-11 02:26:41,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/b9ce7a93a/aba1e21ed543413283d5d307c1178958/FLAGd1b198722 [2021-10-11 02:26:42,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/data/b9ce7a93a/aba1e21ed543413283d5d307c1178958 [2021-10-11 02:26:42,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:42,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:42,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:42,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:42,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:42,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f99b5c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42, skipping insertion in model container [2021-10-11 02:26:42,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:42,128 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:42,358 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-10-11 02:26:42,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:42,457 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:26:42,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:42,510 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-10-11 02:26:42,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:42,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:42,598 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_bff3723f-9d3f-4870-ac21-1b6330f8f31c/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c[7599,7612] [2021-10-11 02:26:42,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:42,715 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:42,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42 WrapperNode [2021-10-11 02:26:42,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:42,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:42,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:42,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:42,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:42,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:42,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:42,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:42,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... [2021-10-11 02:26:42,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:42,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:42,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:42,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:42,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:42,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:26:42,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:42,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:45,942 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:45,942 INFO L299 CfgBuilder]: Removed 280 assume(true) statements. [2021-10-11 02:26:45,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:45 BoogieIcfgContainer [2021-10-11 02:26:45,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:45,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:45,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:45,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:45,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:42" (1/3) ... [2021-10-11 02:26:45,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5829da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:45, skipping insertion in model container [2021-10-11 02:26:45,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:42" (2/3) ... [2021-10-11 02:26:45,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5829da3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:45, skipping insertion in model container [2021-10-11 02:26:45,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:45" (3/3) ... [2021-10-11 02:26:45,951 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2021-10-11 02:26:45,966 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:45,969 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:26:45,981 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:26:46,020 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:46,020 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:46,020 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:46,020 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:46,020 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:46,020 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:46,021 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:46,021 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:46,039 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2021-10-11 02:26:46,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:26:46,045 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:46,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:46,047 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:46,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:46,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1084846627, now seen corresponding path program 1 times [2021-10-11 02:26:46,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:46,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912941236] [2021-10-11 02:26:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:46,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:26:46,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:46,333 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 02:26:46,334 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:46,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912941236] [2021-10-11 02:26:46,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:46,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:46,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173117320] [2021-10-11 02:26:46,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:46,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:46,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:46,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:46,356 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2021-10-11 02:26:46,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:46,398 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2021-10-11 02:26:46,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:46,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:26:46,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:46,411 INFO L225 Difference]: With dead ends: 376 [2021-10-11 02:26:46,412 INFO L226 Difference]: Without dead ends: 187 [2021-10-11 02:26:46,416 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 02:26:46,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-10-11 02:26:46,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2021-10-11 02:26:46,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2021-10-11 02:26:46,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2021-10-11 02:26:46,496 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2021-10-11 02:26:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:46,497 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2021-10-11 02:26:46,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:46,497 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2021-10-11 02:26:46,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:46,499 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:46,499 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 02:26:46,718 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:26:46,718 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:46,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:46,719 INFO L82 PathProgramCache]: Analyzing trace with hash 38089730, now seen corresponding path program 1 times [2021-10-11 02:26:46,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:46,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403085980] [2021-10-11 02:26:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:46,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:46,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:46,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:46,962 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 02:26:46,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:46,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403085980] [2021-10-11 02:26:46,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:46,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:46,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368455301] [2021-10-11 02:26:46,964 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:46,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:46,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:46,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:46,966 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 3 states. [2021-10-11 02:26:46,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:46,982 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2021-10-11 02:26:46,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:46,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:26:46,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:46,984 INFO L225 Difference]: With dead ends: 187 [2021-10-11 02:26:46,984 INFO L226 Difference]: Without dead ends: 73 [2021-10-11 02:26:46,986 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 02:26:46,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-11 02:26:46,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-10-11 02:26:46,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-10-11 02:26:46,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2021-10-11 02:26:46,992 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2021-10-11 02:26:46,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:46,993 INFO L481 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2021-10-11 02:26:46,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:46,993 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2021-10-11 02:26:46,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:26:46,994 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:46,994 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 02:26:47,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:26:47,211 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:47,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:47,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1082167242, now seen corresponding path program 1 times [2021-10-11 02:26:47,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:47,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837601135] [2021-10-11 02:26:47,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:47,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:47,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:47,480 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 02:26:47,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:47,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837601135] [2021-10-11 02:26:47,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:47,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:47,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310030816] [2021-10-11 02:26:47,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:47,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:47,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:47,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:47,483 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 3 states. [2021-10-11 02:26:47,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:47,526 INFO L93 Difference]: Finished difference Result 207 states and 312 transitions. [2021-10-11 02:26:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:47,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:26:47,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:47,549 INFO L225 Difference]: With dead ends: 207 [2021-10-11 02:26:47,550 INFO L226 Difference]: Without dead ends: 140 [2021-10-11 02:26:47,551 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 02:26:47,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-11 02:26:47,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2021-10-11 02:26:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-10-11 02:26:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 205 transitions. [2021-10-11 02:26:47,576 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 205 transitions. Word has length 22 [2021-10-11 02:26:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:47,576 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 205 transitions. [2021-10-11 02:26:47,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:47,577 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 205 transitions. [2021-10-11 02:26:47,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:47,578 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:47,578 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] [2021-10-11 02:26:47,779 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:26:47,779 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:47,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1933185311, now seen corresponding path program 1 times [2021-10-11 02:26:47,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:47,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570604662] [2021-10-11 02:26:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:47,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:47,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:48,022 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 02:26:48,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:48,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570604662] [2021-10-11 02:26:48,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:48,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:48,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285603926] [2021-10-11 02:26:48,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:48,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:48,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:48,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:48,025 INFO L87 Difference]: Start difference. First operand 136 states and 205 transitions. Second operand 3 states. [2021-10-11 02:26:48,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:48,113 INFO L93 Difference]: Finished difference Result 283 states and 430 transitions. [2021-10-11 02:26:48,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:48,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:26:48,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:48,116 INFO L225 Difference]: With dead ends: 283 [2021-10-11 02:26:48,116 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 02:26:48,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 02:26:48,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 02:26:48,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 151. [2021-10-11 02:26:48,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2021-10-11 02:26:48,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 219 transitions. [2021-10-11 02:26:48,133 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 219 transitions. Word has length 25 [2021-10-11 02:26:48,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:48,134 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 219 transitions. [2021-10-11 02:26:48,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:48,134 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 219 transitions. [2021-10-11 02:26:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:26:48,135 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:48,135 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] [2021-10-11 02:26:48,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:26:48,347 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:48,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:48,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2034893835, now seen corresponding path program 1 times [2021-10-11 02:26:48,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:48,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469933056] [2021-10-11 02:26:48,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:48,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:48,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:48,662 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 02:26:48,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:48,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469933056] [2021-10-11 02:26:48,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:48,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:48,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951526215] [2021-10-11 02:26:48,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:48,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:48,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:48,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:48,666 INFO L87 Difference]: Start difference. First operand 151 states and 219 transitions. Second operand 5 states. [2021-10-11 02:26:48,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:48,834 INFO L93 Difference]: Finished difference Result 763 states and 1120 transitions. [2021-10-11 02:26:48,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:26:48,835 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:26:48,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:48,839 INFO L225 Difference]: With dead ends: 763 [2021-10-11 02:26:48,839 INFO L226 Difference]: Without dead ends: 618 [2021-10-11 02:26:48,841 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 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 02:26:48,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2021-10-11 02:26:48,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 286. [2021-10-11 02:26:48,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-10-11 02:26:48,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 411 transitions. [2021-10-11 02:26:48,876 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 411 transitions. Word has length 25 [2021-10-11 02:26:48,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:48,876 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 411 transitions. [2021-10-11 02:26:48,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:48,877 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 411 transitions. [2021-10-11 02:26:48,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:26:48,878 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:48,879 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:49,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:26:49,099 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:49,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1831086741, now seen corresponding path program 1 times [2021-10-11 02:26:49,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:49,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261460746] [2021-10-11 02:26:49,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:49,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:49,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:49,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:49,354 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 02:26:49,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:49,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261460746] [2021-10-11 02:26:49,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:49,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:49,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760680630] [2021-10-11 02:26:49,356 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:49,356 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:49,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:49,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:49,357 INFO L87 Difference]: Start difference. First operand 286 states and 411 transitions. Second operand 5 states. [2021-10-11 02:26:49,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:49,628 INFO L93 Difference]: Finished difference Result 832 states and 1198 transitions. [2021-10-11 02:26:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:26:49,629 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:26:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:49,637 INFO L225 Difference]: With dead ends: 832 [2021-10-11 02:26:49,637 INFO L226 Difference]: Without dead ends: 830 [2021-10-11 02:26:49,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 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 02:26:49,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-10-11 02:26:49,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 286. [2021-10-11 02:26:49,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-10-11 02:26:49,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 409 transitions. [2021-10-11 02:26:49,687 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 409 transitions. Word has length 26 [2021-10-11 02:26:49,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:49,688 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 409 transitions. [2021-10-11 02:26:49,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:49,689 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 409 transitions. [2021-10-11 02:26:49,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:49,697 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:49,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:49,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:26:49,916 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:49,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:49,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1549689670, now seen corresponding path program 1 times [2021-10-11 02:26:49,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:49,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506770096] [2021-10-11 02:26:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,176 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 02:26:50,176 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:50,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506770096] [2021-10-11 02:26:50,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:50,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:50,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903866280] [2021-10-11 02:26:50,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:50,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:50,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:50,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:50,179 INFO L87 Difference]: Start difference. First operand 286 states and 409 transitions. Second operand 5 states. [2021-10-11 02:26:50,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,319 INFO L93 Difference]: Finished difference Result 766 states and 1076 transitions. [2021-10-11 02:26:50,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:50,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 02:26:50,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,323 INFO L225 Difference]: With dead ends: 766 [2021-10-11 02:26:50,323 INFO L226 Difference]: Without dead ends: 486 [2021-10-11 02:26:50,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 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 02:26:50,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-10-11 02:26:50,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 322. [2021-10-11 02:26:50,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2021-10-11 02:26:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 445 transitions. [2021-10-11 02:26:50,354 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 445 transitions. Word has length 32 [2021-10-11 02:26:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,354 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 445 transitions. [2021-10-11 02:26:50,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 445 transitions. [2021-10-11 02:26:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:50,355 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:50,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:26:50,572 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:50,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:50,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1942716680, now seen corresponding path program 1 times [2021-10-11 02:26:50,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:50,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1846820410] [2021-10-11 02:26:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:50,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:26:50,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:50,820 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 02:26:50,821 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:50,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1846820410] [2021-10-11 02:26:50,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:50,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:50,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209080540] [2021-10-11 02:26:50,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:50,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:50,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:50,823 INFO L87 Difference]: Start difference. First operand 322 states and 445 transitions. Second operand 4 states. [2021-10-11 02:26:50,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:50,940 INFO L93 Difference]: Finished difference Result 782 states and 1066 transitions. [2021-10-11 02:26:50,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:50,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 02:26:50,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:50,945 INFO L225 Difference]: With dead ends: 782 [2021-10-11 02:26:50,947 INFO L226 Difference]: Without dead ends: 466 [2021-10-11 02:26:50,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 02:26:50,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-10-11 02:26:50,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 346. [2021-10-11 02:26:50,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2021-10-11 02:26:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 469 transitions. [2021-10-11 02:26:50,992 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 469 transitions. Word has length 32 [2021-10-11 02:26:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:50,993 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 469 transitions. [2021-10-11 02:26:50,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 469 transitions. [2021-10-11 02:26:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:26:50,994 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:50,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:51,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:26:51,214 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:51,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:51,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1684551242, now seen corresponding path program 1 times [2021-10-11 02:26:51,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:51,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1865489819] [2021-10-11 02:26:51,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:51,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:51,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:51,458 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 02:26:51,458 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:51,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1865489819] [2021-10-11 02:26:51,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:51,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:51,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337585226] [2021-10-11 02:26:51,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:51,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:51,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:51,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:51,461 INFO L87 Difference]: Start difference. First operand 346 states and 469 transitions. Second operand 3 states. [2021-10-11 02:26:51,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:51,535 INFO L93 Difference]: Finished difference Result 794 states and 1070 transitions. [2021-10-11 02:26:51,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:51,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 02:26:51,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:51,540 INFO L225 Difference]: With dead ends: 794 [2021-10-11 02:26:51,541 INFO L226 Difference]: Without dead ends: 454 [2021-10-11 02:26:51,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 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 02:26:51,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-10-11 02:26:51,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2021-10-11 02:26:51,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2021-10-11 02:26:51,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 599 transitions. [2021-10-11 02:26:51,588 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 599 transitions. Word has length 32 [2021-10-11 02:26:51,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:51,588 INFO L481 AbstractCegarLoop]: Abstraction has 454 states and 599 transitions. [2021-10-11 02:26:51,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:51,589 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 599 transitions. [2021-10-11 02:26:51,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:26:51,590 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:51,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:51,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:26:51,805 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:51,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:51,806 INFO L82 PathProgramCache]: Analyzing trace with hash 1539369524, now seen corresponding path program 1 times [2021-10-11 02:26:51,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:51,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713686879] [2021-10-11 02:26:51,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/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 02:26:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:53,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:54,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:54,599 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:54,796 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:26:54,796 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:55,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:26:55,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:55 BoogieIcfgContainer [2021-10-11 02:26:55,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:55,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:55,154 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:55,154 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:55,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:45" (3/4) ... [2021-10-11 02:26:55,157 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:55,273 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bff3723f-9d3f-4870-ac21-1b6330f8f31c/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:55,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:55,275 INFO L168 Benchmark]: Toolchain (without parser) took 13248.90 ms. Allocated memory was 71.3 MB in the beginning and 125.8 MB in the end (delta: 54.5 MB). Free memory was 51.8 MB in the beginning and 66.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,275 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:55,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.64 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 37.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,277 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.80 ms. Allocated memory is still 71.3 MB. Free memory was 37.8 MB in the beginning and 52.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,277 INFO L168 Benchmark]: Boogie Preprocessor took 61.74 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 48.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,278 INFO L168 Benchmark]: RCFGBuilder took 3060.02 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 48.8 MB in the beginning and 47.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,278 INFO L168 Benchmark]: TraceAbstraction took 9207.46 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.3 MB in the beginning and 81.4 MB in the end (delta: -35.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,279 INFO L168 Benchmark]: Witness Printer took 119.68 ms. Allocated memory is still 125.8 MB. Free memory was 81.4 MB in the beginning and 66.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:55,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 71.3 MB. Free memory was 52.0 MB in the beginning and 51.9 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 689.64 ms. Allocated memory is still 71.3 MB. Free memory was 51.6 MB in the beginning and 37.8 MB in the end (delta: 13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.80 ms. Allocated memory is still 71.3 MB. Free memory was 37.8 MB in the beginning and 52.4 MB in the end (delta: -14.6 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.74 ms. Allocated memory is still 71.3 MB. Free memory was 52.4 MB in the beginning and 48.8 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3060.02 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 48.8 MB in the beginning and 47.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9207.46 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.3 MB in the beginning and 81.4 MB in the end (delta: -35.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 119.68 ms. Allocated memory is still 125.8 MB. Free memory was 81.4 MB in the beginning and 66.7 MB in the end (delta: 14.7 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: 508]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L161] int pumpRunning = 0; [L162] int systemActive = 1; [L401] int waterLevel = 1; [L402] int methaneLevelCritical = 0; [L513] int cleanupTimeShifts = 4; [L804] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L587] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L593] tmp = valid_product() [L595] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L86] int splverifierCounter ; [L87] int tmp ; [L88] int tmp___0 ; [L89] int tmp___1 ; [L90] int tmp___2 ; [L93] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L95] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L97] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L103] tmp = __VERIFIER_nondet_int() [L105] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] COND TRUE waterLevel < 2 [L420] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] tmp___0 = __VERIFIER_nondet_int() [L115] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L431] COND FALSE !(\read(methaneLevelCritical)) [L434] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L123] tmp___2 = __VERIFIER_nondet_int() [L125] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L169] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L176] COND TRUE \read(systemActive) [L250] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L253] COND FALSE !(\read(pumpRunning)) [L224] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L227] COND FALSE !(\read(pumpRunning)) [L198] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] COND TRUE ! pumpRunning [L347] int retValue_acc ; [L348] int tmp ; [L349] int tmp___0 ; [L481] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L484] COND FALSE !(waterLevel < 2) [L488] retValue_acc = 0 [L489] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L353] tmp = isHighWaterSensorDry() [L355] COND FALSE !(\read(tmp)) [L358] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L360] retValue_acc = tmp___0 [L361] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L203] tmp = isHighWaterLevel() [L205] COND TRUE \read(tmp) [L278] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L610] int tmp ; [L611] int tmp___0 ; [L440] int retValue_acc ; [L443] retValue_acc = methaneLevelCritical [L444] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L615] tmp = isMethaneLevelCritical() [L617] COND TRUE \read(tmp) [L302] int retValue_acc ; [L305] retValue_acc = pumpRunning [L306] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L619] tmp___0 = isPumpRunning() [L621] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] 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, 191 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1186 SDtfs, 1206 SDslu, 1401 SDs, 0 SdLazy, 201 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=454occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1166 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 11358 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1814 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...