./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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_3fb239af-1780-4c42-93e2-fbc78e933519/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 9f716f844e272d3040100c1f49345c7fdf02d773 ............................................................................................................................................ 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_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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_3fb239af-1780-4c42-93e2-fbc78e933519/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 9f716f844e272d3040100c1f49345c7fdf02d773 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:26:05,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:05,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:05,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:05,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:05,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:05,146 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:05,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:05,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:05,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:05,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:05,155 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:05,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:05,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:05,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:05,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:05,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:05,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:05,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:05,170 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:05,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:05,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:05,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:05,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:05,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:05,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:05,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:05,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:05,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:05,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:05,195 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:05,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:05,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:05,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:05,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:05,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:05,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:05,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:05,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:05,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:05,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:05,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:26:05,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:05,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:05,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:05,256 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:05,257 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:05,257 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:05,257 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:26:05,257 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:05,257 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:05,258 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:26:05,264 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:26:05,264 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:05,265 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:26:05,265 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:26:05,265 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:26:05,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:05,266 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:05,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:26:05,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:05,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:05,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:05,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:05,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:05,268 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:05,268 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:05,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:05,269 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:05,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:05,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:05,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:05,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:05,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:05,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:05,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:05,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:26:05,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:26:05,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:05,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:05,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:05,273 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_3fb239af-1780-4c42-93e2-fbc78e933519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f716f844e272d3040100c1f49345c7fdf02d773 [2021-10-11 02:26:05,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:05,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:05,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:05,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:05,609 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:05,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-11 02:26:05,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/d8a921335/af3cb39979b540809d3200632644aa83/FLAG94f98cca7 [2021-10-11 02:26:06,234 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:06,234 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-11 02:26:06,261 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/d8a921335/af3cb39979b540809d3200632644aa83/FLAG94f98cca7 [2021-10-11 02:26:06,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/d8a921335/af3cb39979b540809d3200632644aa83 [2021-10-11 02:26:06,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:06,526 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:06,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:06,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:06,534 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:06,535 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b5ef88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06, skipping insertion in model container [2021-10-11 02:26:06,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:06" (1/1) ... [2021-10-11 02:26:06,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:06,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:06,855 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_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-11 02:26:06,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:06,871 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 02:26:06,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c447c85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:06, skipping insertion in model container [2021-10-11 02:26:06,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:06,875 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:26:06,877 INFO L168 Benchmark]: Toolchain (without parser) took 349.48 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 39.3 MB in the beginning and 69.0 MB in the end (delta: -29.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:06,878 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:06,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.63 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 39.1 MB in the beginning and 69.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:06,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 81.8 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.63 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 39.1 MB in the beginning and 69.0 MB in the end (delta: -29.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:26:09,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:26:09,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:26:09,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:26:09,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:26:09,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:26:09,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:26:09,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:26:09,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:26:09,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:26:09,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:26:09,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:26:09,253 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:26:09,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:26:09,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:26:09,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:26:09,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:26:09,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:26:09,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:26:09,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:26:09,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:26:09,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:26:09,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:26:09,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:26:09,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:26:09,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:26:09,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:26:09,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:26:09,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:26:09,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:26:09,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:26:09,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:26:09,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:26:09,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:26:09,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:26:09,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:26:09,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:26:09,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:26:09,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:26:09,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:26:09,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:26:09,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:26:09,359 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:26:09,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:26:09,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:26:09,361 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:26:09,361 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:26:09,361 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:26:09,362 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:26:09,362 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:26:09,363 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:26:09,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:26:09,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:26:09,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:26:09,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:26:09,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:26:09,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:26:09,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:26:09,367 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:26:09,367 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:26:09,367 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:26:09,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:26:09,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:26:09,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:26:09,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:26:09,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:26:09,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:26:09,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:26:09,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:26:09,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:26:09,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:26:09,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:26:09,370 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:26:09,370 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:09,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:26:09,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:26:09,371 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:26:09,371 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_3fb239af-1780-4c42-93e2-fbc78e933519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f716f844e272d3040100c1f49345c7fdf02d773 [2021-10-11 02:26:09,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:26:09,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:26:09,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:26:09,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:26:09,820 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:26:09,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-11 02:26:09,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/111e7ea82/707664767eb246d58cb301f00c7abf3a/FLAG7c9581099 [2021-10-11 02:26:10,652 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:26:10,661 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c [2021-10-11 02:26:10,682 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/111e7ea82/707664767eb246d58cb301f00c7abf3a/FLAG7c9581099 [2021-10-11 02:26:10,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/data/111e7ea82/707664767eb246d58cb301f00c7abf3a [2021-10-11 02:26:10,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:26:10,900 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:26:10,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:10,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:26:10,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:26:10,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:10" (1/1) ... [2021-10-11 02:26:10,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21476353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:10, skipping insertion in model container [2021-10-11 02:26:10,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:26:10" (1/1) ... [2021-10-11 02:26:10,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:26:11,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:11,452 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_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-11 02:26:11,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:11,487 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:26:11,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:26:11,626 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_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-11 02:26:11,628 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:11,634 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:26:11,713 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_3fb239af-1780-4c42-93e2-fbc78e933519/sv-benchmarks/c/product-lines/minepump_spec4_product33.cil.c[16936,16949] [2021-10-11 02:26:11,715 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:26:11,756 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:26:11,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11 WrapperNode [2021-10-11 02:26:11,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:26:11,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:11,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:26:11,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:26:11,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:26:11,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:26:11,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:26:11,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:26:11,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... [2021-10-11 02:26:11,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:26:11,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:26:11,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:26:11,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:26:11,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:26:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:26:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:26:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:26:14,320 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:26:14,320 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-11 02:26:14,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:14 BoogieIcfgContainer [2021-10-11 02:26:14,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:26:14,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:26:14,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:26:14,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:26:14,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:26:10" (1/3) ... [2021-10-11 02:26:14,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10be2807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:14, skipping insertion in model container [2021-10-11 02:26:14,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:26:11" (2/3) ... [2021-10-11 02:26:14,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10be2807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:26:14, skipping insertion in model container [2021-10-11 02:26:14,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:14" (3/3) ... [2021-10-11 02:26:14,330 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33.cil.c [2021-10-11 02:26:14,344 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:26:14,347 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:26:14,358 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:26:14,395 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:26:14,395 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:26:14,395 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:26:14,396 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:26:14,396 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:26:14,396 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:26:14,396 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:26:14,396 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:26:14,410 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2021-10-11 02:26:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:26:14,415 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:14,416 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:14,416 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:14,422 INFO L82 PathProgramCache]: Analyzing trace with hash 768274677, now seen corresponding path program 1 times [2021-10-11 02:26:14,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:14,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446811967] [2021-10-11 02:26:14,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:14,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:26:14,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:14,708 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 02:26:14,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:14,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446811967] [2021-10-11 02:26:14,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:14,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:14,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020706184] [2021-10-11 02:26:14,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:26:14,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:14,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:26:14,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:26:14,729 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2021-10-11 02:26:14,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:14,759 INFO L93 Difference]: Finished difference Result 150 states and 227 transitions. [2021-10-11 02:26:14,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:26:14,760 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:26:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:14,770 INFO L225 Difference]: With dead ends: 150 [2021-10-11 02:26:14,770 INFO L226 Difference]: Without dead ends: 74 [2021-10-11 02:26:14,773 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 02:26:14,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-10-11 02:26:14,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-10-11 02:26:14,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-10-11 02:26:14,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 105 transitions. [2021-10-11 02:26:14,843 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 105 transitions. Word has length 16 [2021-10-11 02:26:14,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:14,844 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 105 transitions. [2021-10-11 02:26:14,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:26:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 105 transitions. [2021-10-11 02:26:14,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:26:14,846 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:14,846 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 02:26:15,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:26:15,064 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:15,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:15,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1484097871, now seen corresponding path program 1 times [2021-10-11 02:26:15,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:15,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794121101] [2021-10-11 02:26:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:15,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:15,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:15,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:15,352 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 02:26:15,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:15,352 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794121101] [2021-10-11 02:26:15,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:15,353 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:15,353 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403724826] [2021-10-11 02:26:15,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:15,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:15,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:15,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:15,356 INFO L87 Difference]: Start difference. First operand 74 states and 105 transitions. Second operand 3 states. [2021-10-11 02:26:15,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:15,375 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2021-10-11 02:26:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:15,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:26:15,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:15,379 INFO L225 Difference]: With dead ends: 74 [2021-10-11 02:26:15,379 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:26:15,380 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 02:26:15,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:26:15,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:26:15,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:26:15,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2021-10-11 02:26:15,390 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 17 [2021-10-11 02:26:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:15,393 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2021-10-11 02:26:15,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2021-10-11 02:26:15,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:26:15,395 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:15,396 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 02:26:15,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:26:15,609 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:15,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:15,610 INFO L82 PathProgramCache]: Analyzing trace with hash 670124178, now seen corresponding path program 1 times [2021-10-11 02:26:15,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:15,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1899199187] [2021-10-11 02:26:15,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:15,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:15,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:15,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:15,862 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 02:26:15,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:15,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1899199187] [2021-10-11 02:26:15,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:15,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:26:15,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014989972] [2021-10-11 02:26:15,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:15,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:15,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:15,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:15,865 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 3 states. [2021-10-11 02:26:15,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:15,873 INFO L93 Difference]: Finished difference Result 62 states and 90 transitions. [2021-10-11 02:26:15,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:15,874 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:26:15,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:15,875 INFO L225 Difference]: With dead ends: 62 [2021-10-11 02:26:15,876 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:26:15,876 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 02:26:15,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:26:15,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:26:15,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:26:15,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 47 transitions. [2021-10-11 02:26:15,882 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 47 transitions. Word has length 22 [2021-10-11 02:26:15,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:15,882 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 47 transitions. [2021-10-11 02:26:15,882 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2021-10-11 02:26:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:26:15,883 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:15,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:16,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:26:16,106 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:16,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:16,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1804645939, now seen corresponding path program 1 times [2021-10-11 02:26:16,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:16,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269892410] [2021-10-11 02:26:16,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:16,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:16,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:26:16,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:16,373 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 02:26:16,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:16,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269892410] [2021-10-11 02:26:16,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:16,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:16,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481876396] [2021-10-11 02:26:16,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:26:16,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:16,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:26:16,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:16,377 INFO L87 Difference]: Start difference. First operand 34 states and 47 transitions. Second operand 3 states. [2021-10-11 02:26:16,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:16,427 INFO L93 Difference]: Finished difference Result 83 states and 118 transitions. [2021-10-11 02:26:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:26:16,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:26:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:16,429 INFO L225 Difference]: With dead ends: 83 [2021-10-11 02:26:16,429 INFO L226 Difference]: Without dead ends: 55 [2021-10-11 02:26:16,429 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:26:16,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-11 02:26:16,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2021-10-11 02:26:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:26:16,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 74 transitions. [2021-10-11 02:26:16,438 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 74 transitions. Word has length 23 [2021-10-11 02:26:16,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:16,438 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 74 transitions. [2021-10-11 02:26:16,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:26:16,439 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 74 transitions. [2021-10-11 02:26:16,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:26:16,440 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:16,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:16,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:26:16,656 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:16,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:16,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1746371458, now seen corresponding path program 1 times [2021-10-11 02:26:16,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:16,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526663964] [2021-10-11 02:26:16,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:16,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:16,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:16,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:16,910 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 02:26:16,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:16,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526663964] [2021-10-11 02:26:16,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:16,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:16,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831536366] [2021-10-11 02:26:16,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:16,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:16,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:16,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:16,913 INFO L87 Difference]: Start difference. First operand 53 states and 74 transitions. Second operand 5 states. [2021-10-11 02:26:16,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:16,986 INFO L93 Difference]: Finished difference Result 139 states and 194 transitions. [2021-10-11 02:26:16,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:16,987 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:26:16,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:16,989 INFO L225 Difference]: With dead ends: 139 [2021-10-11 02:26:16,989 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 02:26:16,990 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:26:16,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 02:26:16,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 56. [2021-10-11 02:26:16,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 02:26:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2021-10-11 02:26:16,999 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 29 [2021-10-11 02:26:17,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:17,000 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2021-10-11 02:26:17,000 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:17,000 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2021-10-11 02:26:17,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:26:17,002 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:17,002 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:17,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:26:17,220 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:17,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:17,220 INFO L82 PathProgramCache]: Analyzing trace with hash 916139585, now seen corresponding path program 1 times [2021-10-11 02:26:17,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:17,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101342406] [2021-10-11 02:26:17,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:17,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:26:17,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:17,547 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 02:26:17,548 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:17,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [101342406] [2021-10-11 02:26:17,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:17,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:17,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135795806] [2021-10-11 02:26:17,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:26:17,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:17,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:26:17,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:17,557 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand 5 states. [2021-10-11 02:26:17,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:17,717 INFO L93 Difference]: Finished difference Result 203 states and 287 transitions. [2021-10-11 02:26:17,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:26:17,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:26:17,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:17,723 INFO L225 Difference]: With dead ends: 203 [2021-10-11 02:26:17,724 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 02:26:17,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:26:17,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 02:26:17,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2021-10-11 02:26:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-11 02:26:17,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 132 transitions. [2021-10-11 02:26:17,761 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 132 transitions. Word has length 29 [2021-10-11 02:26:17,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:17,761 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 132 transitions. [2021-10-11 02:26:17,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:26:17,762 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 132 transitions. [2021-10-11 02:26:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:26:17,766 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:17,766 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:17,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:26:17,967 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:17,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:17,968 INFO L82 PathProgramCache]: Analyzing trace with hash -949743997, now seen corresponding path program 1 times [2021-10-11 02:26:17,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:17,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244645661] [2021-10-11 02:26:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:18,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:26:18,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:18,216 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 02:26:18,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:18,217 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244645661] [2021-10-11 02:26:18,217 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:18,217 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:26:18,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484342194] [2021-10-11 02:26:18,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:18,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:18,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:18,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:18,219 INFO L87 Difference]: Start difference. First operand 98 states and 132 transitions. Second operand 4 states. [2021-10-11 02:26:19,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:19,692 INFO L93 Difference]: Finished difference Result 246 states and 342 transitions. [2021-10-11 02:26:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:19,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:26:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:19,696 INFO L225 Difference]: With dead ends: 246 [2021-10-11 02:26:19,696 INFO L226 Difference]: Without dead ends: 196 [2021-10-11 02:26:19,697 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-11 02:26:19,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 189. [2021-10-11 02:26:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-10-11 02:26:19,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 258 transitions. [2021-10-11 02:26:19,722 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 258 transitions. Word has length 30 [2021-10-11 02:26:19,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:19,722 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 258 transitions. [2021-10-11 02:26:19,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:19,723 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 258 transitions. [2021-10-11 02:26:19,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:26:19,723 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:19,724 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:19,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:26:19,941 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:19,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:19,942 INFO L82 PathProgramCache]: Analyzing trace with hash -691578559, now seen corresponding path program 1 times [2021-10-11 02:26:19,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:19,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980415621] [2021-10-11 02:26:19,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:20,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:26:20,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:20,187 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 02:26:20,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:20,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980415621] [2021-10-11 02:26:20,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:20,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:20,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060652106] [2021-10-11 02:26:20,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:20,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:20,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:20,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:20,190 INFO L87 Difference]: Start difference. First operand 189 states and 258 transitions. Second operand 4 states. [2021-10-11 02:26:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:20,266 INFO L93 Difference]: Finished difference Result 480 states and 666 transitions. [2021-10-11 02:26:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:26:20,267 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:26:20,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:20,274 INFO L225 Difference]: With dead ends: 480 [2021-10-11 02:26:20,274 INFO L226 Difference]: Without dead ends: 336 [2021-10-11 02:26:20,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:26:20,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-10-11 02:26:20,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 188. [2021-10-11 02:26:20,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2021-10-11 02:26:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 256 transitions. [2021-10-11 02:26:20,308 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 256 transitions. Word has length 30 [2021-10-11 02:26:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:20,310 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 256 transitions. [2021-10-11 02:26:20,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 256 transitions. [2021-10-11 02:26:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:26:20,311 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:20,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:20,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:26:20,518 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:20,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:20,519 INFO L82 PathProgramCache]: Analyzing trace with hash 547850684, now seen corresponding path program 1 times [2021-10-11 02:26:20,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:20,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1553166163] [2021-10-11 02:26:20,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:20,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:26:20,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:20,780 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 02:26:20,780 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:20,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1553166163] [2021-10-11 02:26:20,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:20,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:26:20,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581956003] [2021-10-11 02:26:20,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:26:20,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:20,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:26:20,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:26:20,783 INFO L87 Difference]: Start difference. First operand 188 states and 256 transitions. Second operand 6 states. [2021-10-11 02:26:22,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:22,712 INFO L93 Difference]: Finished difference Result 367 states and 500 transitions. [2021-10-11 02:26:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:26:22,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-10-11 02:26:22,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:22,715 INFO L225 Difference]: With dead ends: 367 [2021-10-11 02:26:22,715 INFO L226 Difference]: Without dead ends: 224 [2021-10-11 02:26:22,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:26:22,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-10-11 02:26:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 184. [2021-10-11 02:26:22,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2021-10-11 02:26:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 248 transitions. [2021-10-11 02:26:22,744 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 248 transitions. Word has length 30 [2021-10-11 02:26:22,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:22,745 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 248 transitions. [2021-10-11 02:26:22,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:26:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 248 transitions. [2021-10-11 02:26:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:26:22,747 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:22,747 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:22,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:26:22,959 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:22,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1650264504, now seen corresponding path program 1 times [2021-10-11 02:26:22,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:22,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464723026] [2021-10-11 02:26:22,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/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 02:26:23,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:23,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:26:23,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:26:23,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:26:23,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464723026] [2021-10-11 02:26:23,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:26:23,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:26:23,227 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105911117] [2021-10-11 02:26:23,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:26:23,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:26:23,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:26:23,229 INFO L87 Difference]: Start difference. First operand 184 states and 248 transitions. Second operand 4 states. [2021-10-11 02:26:23,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:23,296 INFO L93 Difference]: Finished difference Result 388 states and 524 transitions. [2021-10-11 02:26:23,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:26:23,296 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2021-10-11 02:26:23,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:23,298 INFO L225 Difference]: With dead ends: 388 [2021-10-11 02:26:23,298 INFO L226 Difference]: Without dead ends: 210 [2021-10-11 02:26:23,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 02:26:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2021-10-11 02:26:23,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 164. [2021-10-11 02:26:23,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-10-11 02:26:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 217 transitions. [2021-10-11 02:26:23,320 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 217 transitions. Word has length 44 [2021-10-11 02:26:23,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:23,320 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 217 transitions. [2021-10-11 02:26:23,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:26:23,320 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2021-10-11 02:26:23,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-11 02:26:23,321 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:23,321 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:23,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:26:23,538 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:23,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:23,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1693810360, now seen corresponding path program 1 times [2021-10-11 02:26:23,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:23,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325599742] [2021-10-11 02:26:23,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:26:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:23,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:23,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:23,822 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:23,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:23,931 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:23,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325599742] [2021-10-11 02:26:23,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [150768020] [2021-10-11 02:26:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:26:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:24,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:24,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:24,194 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:24,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:24,244 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:24,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022234035] [2021-10-11 02:26:24,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:26:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:26:24,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:26:24,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:26:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:24,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:26:24,513 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:26:24,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:26:24,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:26:24,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116602071] [2021-10-11 02:26:24,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:26:24,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:26:24,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:26:24,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:26:24,516 INFO L87 Difference]: Start difference. First operand 164 states and 217 transitions. Second operand 10 states. [2021-10-11 02:26:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:26:28,029 INFO L93 Difference]: Finished difference Result 710 states and 964 transitions. [2021-10-11 02:26:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:26:28,030 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2021-10-11 02:26:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:26:28,033 INFO L225 Difference]: With dead ends: 710 [2021-10-11 02:26:28,034 INFO L226 Difference]: Without dead ends: 574 [2021-10-11 02:26:28,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 255 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:26:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-10-11 02:26:28,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 214. [2021-10-11 02:26:28,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2021-10-11 02:26:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 291 transitions. [2021-10-11 02:26:28,078 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 291 transitions. Word has length 45 [2021-10-11 02:26:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:26:28,079 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 291 transitions. [2021-10-11 02:26:28,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:26:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 291 transitions. [2021-10-11 02:26:28,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-11 02:26:28,080 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:26:28,080 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:26:28,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2021-10-11 02:26:28,706 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:26:28,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:26:28,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1880584764, now seen corresponding path program 2 times [2021-10-11 02:26:28,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:26:28,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743900634] [2021-10-11 02:26:28,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:26:30,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:30,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:26:31,361 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:26:31,604 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:26:31,604 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:26:31,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2021-10-11 02:26:32,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:26:32 BoogieIcfgContainer [2021-10-11 02:26:32,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:26:32,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:26:32,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:26:32,056 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:26:32,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:26:14" (3/4) ... [2021-10-11 02:26:32,059 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:26:32,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fb239af-1780-4c42-93e2-fbc78e933519/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:26:32,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:26:32,225 INFO L168 Benchmark]: Toolchain (without parser) took 21323.73 ms. Allocated memory was 58.7 MB in the beginning and 104.9 MB in the end (delta: 46.1 MB). Free memory was 35.7 MB in the beginning and 40.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,225 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:26:32,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.09 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 26.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.32 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 53.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,227 INFO L168 Benchmark]: Boogie Preprocessor took 74.01 ms. Allocated memory is still 71.3 MB. Free memory was 53.4 MB in the beginning and 51.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,228 INFO L168 Benchmark]: RCFGBuilder took 2402.10 ms. Allocated memory is still 71.3 MB. Free memory was 51.3 MB in the beginning and 32.2 MB in the end (delta: 19.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,228 INFO L168 Benchmark]: TraceAbstraction took 17731.15 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 31.8 MB in the beginning and 64.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,228 INFO L168 Benchmark]: Witness Printer took 167.25 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 40.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:26:32,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 854.09 ms. Allocated memory is still 58.7 MB. Free memory was 35.5 MB in the beginning and 26.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.32 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 26.1 MB in the beginning and 53.4 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.01 ms. Allocated memory is still 71.3 MB. Free memory was 53.4 MB in the beginning and 51.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2402.10 ms. Allocated memory is still 71.3 MB. Free memory was 51.3 MB in the beginning and 32.2 MB in the end (delta: 19.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17731.15 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 31.8 MB in the beginning and 64.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 37.1 MB. Max. memory is 16.1 GB. * Witness Printer took 167.25 ms. Allocated memory is still 104.9 MB. Free memory was 64.3 MB in the beginning and 40.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 871]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L408] int cleanupTimeShifts = 4; [L617] int waterLevel = 1; [L618] int methaneLevelCritical = 0; [L714] int pumpRunning = 0; [L715] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L489] int retValue_acc ; [L490] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L496] tmp = valid_product() [L498] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() [L567] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L635] COND TRUE waterLevel < 2 [L636] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] COND TRUE \read(systemActive) [L751] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] COND TRUE ! pumpRunning [L848] int retValue_acc ; [L849] int tmp ; [L850] int tmp___0 ; [L697] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND FALSE !(waterLevel < 2) [L704] retValue_acc = 0 [L705] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] tmp = isHighWaterSensorDry() [L856] COND FALSE !(\read(tmp)) [L859] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L861] retValue_acc = tmp___0 [L862] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L756] tmp = isHighWaterLevel() [L758] COND TRUE \read(tmp) [L779] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L877] int tmp ; [L878] int tmp___0 ; [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L557] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L559] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L623] COND TRUE waterLevel > 0 [L624] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] COND TRUE \read(systemActive) [L751] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L754] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L877] int tmp ; [L878] int tmp___0 ; [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L882] tmp = getWaterLevel() [L884] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L557] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L559] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] COND TRUE waterLevel > 0 [L624] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] COND TRUE \read(systemActive) [L751] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L754] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L877] int tmp ; [L878] int tmp___0 ; [L688] int retValue_acc ; [L691] retValue_acc = waterLevel [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L882] tmp = getWaterLevel() [L884] COND TRUE tmp == 0 [L803] int retValue_acc ; [L806] retValue_acc = pumpRunning [L807] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L886] tmp___0 = isPumpRunning() [L888] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L871] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 78 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.4s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 865 SDtfs, 1286 SDslu, 1409 SDs, 0 SdLazy, 320 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 556 GetRequests, 500 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 694 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 524 ConstructedInterpolants, 0 QuantifiedInterpolants, 66412 SizeOfPredicates, 24 NumberOfNonLiveVariables, 2723 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 44/98 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...