./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan --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 cb3c160aa6739f38466ec4be21f196ba4a934feb ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan --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 cb3c160aa6739f38466ec4be21f196ba4a934feb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-22 13:08:54,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:54,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:54,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:54,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:54,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:54,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:54,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:54,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:54,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:54,302 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:54,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:54,305 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:54,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:54,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:54,313 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:54,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:54,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:54,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:54,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:54,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:54,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:54,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:54,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:54,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:54,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:54,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:54,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:54,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:54,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:54,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:54,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:54,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:54,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:54,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:54,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:54,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:54,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:54,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:54,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:54,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:54,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:08:54,410 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:54,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:54,412 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:54,412 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:54,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:54,413 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:54,413 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:54,413 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:54,413 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:54,414 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:54,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:54,415 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:54,415 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:54,416 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:54,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:54,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:54,417 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:54,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:54,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:54,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:54,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:54,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:54,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:54,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:54,419 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:54,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:54,419 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:54,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:54,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:54,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:54,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:54,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:54,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:54,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:54,423 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:54,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:54,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:54,424 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:54,424 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:54,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:54,425 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-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb3c160aa6739f38466ec4be21f196ba4a934feb [2020-11-22 13:08:54,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:54,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:54,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:54,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:54,719 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:54,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-22 13:08:54,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4240c94d7/c57780e0c15342caae29e9bbf9f6d250/FLAG7e17b7194 [2020-11-22 13:08:55,337 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:55,338 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-22 13:08:55,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4240c94d7/c57780e0c15342caae29e9bbf9f6d250/FLAG7e17b7194 [2020-11-22 13:08:55,634 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4240c94d7/c57780e0c15342caae29e9bbf9f6d250 [2020-11-22 13:08:55,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:55,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:55,640 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:55,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:55,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:55,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:55" (1/1) ... [2020-11-22 13:08:55,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbce6c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:55, skipping insertion in model container [2020-11-22 13:08:55,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:55" (1/1) ... [2020-11-22 13:08:55,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:55,710 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:56,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:56,111 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) [2020-11-22 13:08:56,112 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@57bc2dbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:56, skipping insertion in model container [2020-11-22 13:08:56,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:56,113 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:08:56,119 INFO L168 Benchmark]: Toolchain (without parser) took 476.07 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 60.9 MB in the beginning and 90.5 MB in the end (delta: -29.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:56,121 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 94.4 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:56,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 472.97 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 60.6 MB in the beginning and 90.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:56,126 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 94.4 MB. Free memory was 53.4 MB in the beginning and 53.3 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 472.97 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 60.6 MB in the beginning and 90.9 MB in the end (delta: -30.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 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-a4ecdab [2020-11-22 13:08:58,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:58,551 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:58,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:58,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:58,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:58,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:58,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:58,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:58,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:58,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:58,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:58,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:58,610 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:58,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:58,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:58,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:58,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:58,619 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:58,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:58,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:58,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:58,627 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:58,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:58,632 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:58,633 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:58,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:58,634 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:58,635 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:58,636 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:58,637 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:58,638 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:58,639 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:58,640 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:58,642 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:58,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:58,643 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:58,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:58,644 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:58,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:58,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:58,648 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:08:58,675 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:58,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:58,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:58,677 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:58,677 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:58,678 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:58,678 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:58,678 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:58,678 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:58,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:58,680 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:08:58,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:08:58,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:58,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:58,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:58,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:58,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:08:58,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:08:58,681 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:08:58,682 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:08:58,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:58,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:58,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:58,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:58,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:08:58,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:58,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:58,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:58,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:58,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:58,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:58,685 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:08:58,685 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:08:58,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:58,685 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:58,686 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:58,686 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-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb3c160aa6739f38466ec4be21f196ba4a934feb [2020-11-22 13:08:59,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:59,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:59,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:59,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:59,152 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:59,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-22 13:08:59,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4784dd81f/e2879b0459f6460f8006cfb52afc7875/FLAG27e27117f [2020-11-22 13:08:59,905 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:59,906 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/sv-benchmarks/c/product-lines/minepump_spec2_product42.cil.c [2020-11-22 13:08:59,928 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4784dd81f/e2879b0459f6460f8006cfb52afc7875/FLAG27e27117f [2020-11-22 13:09:00,161 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/data/4784dd81f/e2879b0459f6460f8006cfb52afc7875 [2020-11-22 13:09:00,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:09:00,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:09:00,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:00,171 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:09:00,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:09:00,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:00,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52388a57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00, skipping insertion in model container [2020-11-22 13:09:00,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:00,190 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:09:00,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:00,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:00,630 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:09:00,655 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:09:00,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:00,753 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:09:00,893 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:09:00,942 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:09:00,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00 WrapperNode [2020-11-22 13:09:00,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:09:00,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:00,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:09:00,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:09:00,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:00,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:09:01,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:09:01,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:09:01,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:09:01,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,103 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... [2020-11-22 13:09:01,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:09:01,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:09:01,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:09:01,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:09:01,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:09:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:09:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:09:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:09:03,771 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:09:03,771 INFO L298 CfgBuilder]: Removed 124 assume(true) statements. [2020-11-22 13:09:03,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:03 BoogieIcfgContainer [2020-11-22 13:09:03,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:09:03,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:09:03,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:09:03,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:09:03,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:00" (1/3) ... [2020-11-22 13:09:03,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c893d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:03, skipping insertion in model container [2020-11-22 13:09:03,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:00" (2/3) ... [2020-11-22 13:09:03,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c893d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:03, skipping insertion in model container [2020-11-22 13:09:03,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:03" (3/3) ... [2020-11-22 13:09:03,782 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product42.cil.c [2020-11-22 13:09:03,794 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:09:03,799 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:09:03,812 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:09:03,837 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:09:03,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:09:03,837 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:09:03,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:09:03,837 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:09:03,837 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:09:03,837 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:09:03,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:09:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2020-11-22 13:09:03,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:09:03,859 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:03,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:03,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:03,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:03,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1029517948, now seen corresponding path program 1 times [2020-11-22 13:09:03,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:03,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241258151] [2020-11-22 13:09:03,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:09:04,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:04,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:04,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:04,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241258151] [2020-11-22 13:09:04,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:09:04,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183897345] [2020-11-22 13:09:04,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:09:04,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:04,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:09:04,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:09:04,156 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 2 states. [2020-11-22 13:09:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,184 INFO L93 Difference]: Finished difference Result 178 states and 267 transitions. [2020-11-22 13:09:04,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:09:04,186 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:09:04,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,197 INFO L225 Difference]: With dead ends: 178 [2020-11-22 13:09:04,197 INFO L226 Difference]: Without dead ends: 87 [2020-11-22 13:09:04,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:09:04,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-11-22 13:09:04,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-11-22 13:09:04,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-11-22 13:09:04,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 124 transitions. [2020-11-22 13:09:04,243 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 124 transitions. Word has length 18 [2020-11-22 13:09:04,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,244 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 124 transitions. [2020-11-22 13:09:04,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:09:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 124 transitions. [2020-11-22 13:09:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:09:04,245 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:04,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:09:04,454 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:04,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:04,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1248353917, now seen corresponding path program 1 times [2020-11-22 13:09:04,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:04,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [280017177] [2020-11-22 13:09:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:04,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:04,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:04,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:04,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:04,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:04,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [280017177] [2020-11-22 13:09:04,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:04,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:04,755 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833175674] [2020-11-22 13:09:04,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:04,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:04,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:04,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:04,757 INFO L87 Difference]: Start difference. First operand 87 states and 124 transitions. Second operand 4 states. [2020-11-22 13:09:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:04,780 INFO L93 Difference]: Finished difference Result 87 states and 124 transitions. [2020-11-22 13:09:04,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:04,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:09:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:04,783 INFO L225 Difference]: With dead ends: 87 [2020-11-22 13:09:04,785 INFO L226 Difference]: Without dead ends: 39 [2020-11-22 13:09:04,786 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:04,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-22 13:09:04,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-22 13:09:04,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-22 13:09:04,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-22 13:09:04,800 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 19 [2020-11-22 13:09:04,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:04,803 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-22 13:09:04,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:04,804 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-22 13:09:04,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:09:04,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:04,804 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] [2020-11-22 13:09:05,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:09:05,005 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1107356745, now seen corresponding path program 1 times [2020-11-22 13:09:05,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:05,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281432873] [2020-11-22 13:09:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:05,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:05,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281432873] [2020-11-22 13:09:05,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:05,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:09:05,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309598976] [2020-11-22 13:09:05,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:05,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:05,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:05,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:05,239 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 4 states. [2020-11-22 13:09:05,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,271 INFO L93 Difference]: Finished difference Result 71 states and 103 transitions. [2020-11-22 13:09:05,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:05,272 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:09:05,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,273 INFO L225 Difference]: With dead ends: 71 [2020-11-22 13:09:05,273 INFO L226 Difference]: Without dead ends: 39 [2020-11-22 13:09:05,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:05,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-22 13:09:05,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-22 13:09:05,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-22 13:09:05,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-22 13:09:05,280 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 24 [2020-11-22 13:09:05,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,280 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-22 13:09:05,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:05,280 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-22 13:09:05,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:09:05,281 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,281 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] [2020-11-22 13:09:05,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:09:05,493 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1414852999, now seen corresponding path program 1 times [2020-11-22 13:09:05,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:05,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1298419627] [2020-11-22 13:09:05,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:05,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:05,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:05,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:05,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:05,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1298419627] [2020-11-22 13:09:05,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:05,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:09:05,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734809205] [2020-11-22 13:09:05,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:05,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:05,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:05,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:05,711 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 3 states. [2020-11-22 13:09:05,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:05,759 INFO L93 Difference]: Finished difference Result 93 states and 133 transitions. [2020-11-22 13:09:05,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:05,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 13:09:05,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:05,760 INFO L225 Difference]: With dead ends: 93 [2020-11-22 13:09:05,760 INFO L226 Difference]: Without dead ends: 61 [2020-11-22 13:09:05,761 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:05,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-22 13:09:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 59. [2020-11-22 13:09:05,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 13:09:05,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 83 transitions. [2020-11-22 13:09:05,778 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 83 transitions. Word has length 25 [2020-11-22 13:09:05,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:05,779 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 83 transitions. [2020-11-22 13:09:05,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:05,779 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 83 transitions. [2020-11-22 13:09:05,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:09:05,781 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:05,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:05,998 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:09:05,998 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:05,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:05,999 INFO L82 PathProgramCache]: Analyzing trace with hash -1390046811, now seen corresponding path program 1 times [2020-11-22 13:09:05,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:05,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1781842635] [2020-11-22 13:09:06,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:06,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:06,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:06,250 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:06,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:06,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1781842635] [2020-11-22 13:09:06,267 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:06,267 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:09:06,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837443575] [2020-11-22 13:09:06,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:06,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:06,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:06,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:06,269 INFO L87 Difference]: Start difference. First operand 59 states and 83 transitions. Second operand 5 states. [2020-11-22 13:09:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:06,434 INFO L93 Difference]: Finished difference Result 271 states and 394 transitions. [2020-11-22 13:09:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:09:06,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 13:09:06,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:06,437 INFO L225 Difference]: With dead ends: 271 [2020-11-22 13:09:06,437 INFO L226 Difference]: Without dead ends: 219 [2020-11-22 13:09:06,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:09:06,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-11-22 13:09:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 103. [2020-11-22 13:09:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-22 13:09:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 144 transitions. [2020-11-22 13:09:06,457 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 144 transitions. Word has length 31 [2020-11-22 13:09:06,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:06,457 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 144 transitions. [2020-11-22 13:09:06,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:06,458 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 144 transitions. [2020-11-22 13:09:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:09:06,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:06,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:06,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:09:06,675 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:06,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:06,675 INFO L82 PathProgramCache]: Analyzing trace with hash 272516125, now seen corresponding path program 1 times [2020-11-22 13:09:06,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:06,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581584529] [2020-11-22 13:09:06,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:06,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:06,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:06,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:06,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:06,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581584529] [2020-11-22 13:09:06,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:06,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:09:06,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691230099] [2020-11-22 13:09:06,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:06,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:06,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:06,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:06,947 INFO L87 Difference]: Start difference. First operand 103 states and 144 transitions. Second operand 5 states. [2020-11-22 13:09:07,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:07,177 INFO L93 Difference]: Finished difference Result 376 states and 533 transitions. [2020-11-22 13:09:07,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:09:07,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-11-22 13:09:07,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:07,179 INFO L225 Difference]: With dead ends: 376 [2020-11-22 13:09:07,180 INFO L226 Difference]: Without dead ends: 280 [2020-11-22 13:09:07,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:09:07,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-11-22 13:09:07,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2020-11-22 13:09:07,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 13:09:07,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 141 transitions. [2020-11-22 13:09:07,199 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 141 transitions. Word has length 32 [2020-11-22 13:09:07,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:07,200 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 141 transitions. [2020-11-22 13:09:07,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:07,200 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2020-11-22 13:09:07,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 13:09:07,201 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:07,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:07,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:09:07,415 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:07,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:07,415 INFO L82 PathProgramCache]: Analyzing trace with hash -824557763, now seen corresponding path program 1 times [2020-11-22 13:09:07,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:07,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [446221021] [2020-11-22 13:09:07,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:07,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:07,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:09:07,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:07,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:07,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:07,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:07,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [446221021] [2020-11-22 13:09:07,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:07,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:09:07,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941663666] [2020-11-22 13:09:07,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:09:07,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:07,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:09:07,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:09:07,678 INFO L87 Difference]: Start difference. First operand 102 states and 141 transitions. Second operand 5 states. [2020-11-22 13:09:07,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:07,755 INFO L93 Difference]: Finished difference Result 273 states and 377 transitions. [2020-11-22 13:09:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:09:07,756 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2020-11-22 13:09:07,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:07,757 INFO L225 Difference]: With dead ends: 273 [2020-11-22 13:09:07,757 INFO L226 Difference]: Without dead ends: 178 [2020-11-22 13:09:07,758 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:09:07,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-22 13:09:07,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 108. [2020-11-22 13:09:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-22 13:09:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 147 transitions. [2020-11-22 13:09:07,779 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 147 transitions. Word has length 35 [2020-11-22 13:09:07,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:07,780 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 147 transitions. [2020-11-22 13:09:07,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:09:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 147 transitions. [2020-11-22 13:09:07,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 13:09:07,786 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:07,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:08,005 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:09:08,006 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:08,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1835675013, now seen corresponding path program 1 times [2020-11-22 13:09:08,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:08,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558503656] [2020-11-22 13:09:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:08,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:09:08,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:08,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:08,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:08,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:08,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558503656] [2020-11-22 13:09:08,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:08,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:09:08,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405480209] [2020-11-22 13:09:08,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:09:08,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:08,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:09:08,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:09:08,261 INFO L87 Difference]: Start difference. First operand 108 states and 147 transitions. Second operand 6 states. [2020-11-22 13:09:08,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:08,320 INFO L93 Difference]: Finished difference Result 291 states and 395 transitions. [2020-11-22 13:09:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:09:08,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-11-22 13:09:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:08,322 INFO L225 Difference]: With dead ends: 291 [2020-11-22 13:09:08,322 INFO L226 Difference]: Without dead ends: 190 [2020-11-22 13:09:08,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:09:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2020-11-22 13:09:08,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 112. [2020-11-22 13:09:08,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-11-22 13:09:08,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 151 transitions. [2020-11-22 13:09:08,341 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 151 transitions. Word has length 35 [2020-11-22 13:09:08,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:08,341 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 151 transitions. [2020-11-22 13:09:08,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:09:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 151 transitions. [2020-11-22 13:09:08,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-11-22 13:09:08,342 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:08,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:08,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:09:08,558 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:08,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:08,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1438223929, now seen corresponding path program 1 times [2020-11-22 13:09:08,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:08,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1185750801] [2020-11-22 13:09:08,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:08,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:08,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:08,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:08,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:08,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1185750801] [2020-11-22 13:09:08,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:08,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:09:08,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768724159] [2020-11-22 13:09:08,801 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:09:08,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:08,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:09:08,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:08,802 INFO L87 Difference]: Start difference. First operand 112 states and 151 transitions. Second operand 4 states. [2020-11-22 13:09:08,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:08,873 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2020-11-22 13:09:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:09:08,874 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-11-22 13:09:08,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:08,876 INFO L225 Difference]: With dead ends: 350 [2020-11-22 13:09:08,876 INFO L226 Difference]: Without dead ends: 245 [2020-11-22 13:09:08,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:09:08,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-11-22 13:09:08,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 195. [2020-11-22 13:09:08,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-22 13:09:08,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 262 transitions. [2020-11-22 13:09:08,904 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 262 transitions. Word has length 35 [2020-11-22 13:09:08,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:08,905 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 262 transitions. [2020-11-22 13:09:08,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:09:08,905 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 262 transitions. [2020-11-22 13:09:08,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-11-22 13:09:08,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:08,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:09,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:09:09,123 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:09,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:09,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1113565433, now seen corresponding path program 1 times [2020-11-22 13:09:09,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:09,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541239108] [2020-11-22 13:09:09,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:09,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:09,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:09:09,327 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:09,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:09,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:09,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541239108] [2020-11-22 13:09:09,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:09,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 13:09:09,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854008296] [2020-11-22 13:09:09,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:09:09,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:09,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:09:09,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:09:09,441 INFO L87 Difference]: Start difference. First operand 195 states and 262 transitions. Second operand 10 states. [2020-11-22 13:09:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:12,305 INFO L93 Difference]: Finished difference Result 793 states and 1045 transitions. [2020-11-22 13:09:12,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 13:09:12,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 36 [2020-11-22 13:09:12,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:12,309 INFO L225 Difference]: With dead ends: 793 [2020-11-22 13:09:12,309 INFO L226 Difference]: Without dead ends: 605 [2020-11-22 13:09:12,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-11-22 13:09:12,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2020-11-22 13:09:12,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 195. [2020-11-22 13:09:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-11-22 13:09:12,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 257 transitions. [2020-11-22 13:09:12,347 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 257 transitions. Word has length 36 [2020-11-22 13:09:12,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:12,348 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 257 transitions. [2020-11-22 13:09:12,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:09:12,348 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 257 transitions. [2020-11-22 13:09:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-22 13:09:12,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:12,349 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:12,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:09:12,563 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:12,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:12,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1949810816, now seen corresponding path program 1 times [2020-11-22 13:09:12,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:12,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1250590174] [2020-11-22 13:09:12,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/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 [2020-11-22 13:09:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:09:12,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:09:12,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:09:12,781 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:12,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:09:12,785 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:09:12,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1250590174] [2020-11-22 13:09:12,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:09:12,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:09:12,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937008006] [2020-11-22 13:09:12,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:09:12,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:09:12,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:09:12,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:12,788 INFO L87 Difference]: Start difference. First operand 195 states and 257 transitions. Second operand 3 states. [2020-11-22 13:09:12,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:09:12,885 INFO L93 Difference]: Finished difference Result 319 states and 420 transitions. [2020-11-22 13:09:12,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:09:12,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-11-22 13:09:12,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:09:12,887 INFO L225 Difference]: With dead ends: 319 [2020-11-22 13:09:12,888 INFO L226 Difference]: Without dead ends: 317 [2020-11-22 13:09:12,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:09:12,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-11-22 13:09:12,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 235. [2020-11-22 13:09:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-22 13:09:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 316 transitions. [2020-11-22 13:09:12,945 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 316 transitions. Word has length 51 [2020-11-22 13:09:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:09:12,945 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 316 transitions. [2020-11-22 13:09:12,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:09:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 316 transitions. [2020-11-22 13:09:12,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-11-22 13:09:12,947 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:09:12,947 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:09:13,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-11-22 13:09:13,162 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:09:13,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:09:13,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1970611655, now seen corresponding path program 1 times [2020-11-22 13:09:13,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:09:13,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753170488] [2020-11-22 13:09:13,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-11-22 13:09:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:14,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:09:15,574 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:09:15,949 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:09:15,949 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:09:16,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-11-22 13:09:16,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:16 BoogieIcfgContainer [2020-11-22 13:09:16,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:09:16,318 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:09:16,318 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:09:16,318 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:09:16,318 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:03" (3/4) ... [2020-11-22 13:09:16,320 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:09:16,474 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ab4bcc22-055f-4f12-854a-4fd5f283e9a4/bin/utaipan/witness.graphml [2020-11-22 13:09:16,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:09:16,476 INFO L168 Benchmark]: Toolchain (without parser) took 16308.38 ms. Allocated memory was 52.4 MB in the beginning and 98.6 MB in the end (delta: 46.1 MB). Free memory was 29.2 MB in the beginning and 26.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 47.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,477 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:09:16,477 INFO L168 Benchmark]: CACSL2BoogieTranslator took 773.51 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 35.6 MB in the end (delta: -6.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,478 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.32 ms. Allocated memory is still 67.1 MB. Free memory was 35.6 MB in the beginning and 47.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,478 INFO L168 Benchmark]: Boogie Preprocessor took 76.52 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 45.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,478 INFO L168 Benchmark]: RCFGBuilder took 2655.13 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.4 MB in the beginning and 49.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,479 INFO L168 Benchmark]: TraceAbstraction took 12542.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.6 MB in the beginning and 54.6 MB in the end (delta: -4.9 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,479 INFO L168 Benchmark]: Witness Printer took 156.77 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 26.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:09:16,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 52.4 MB. Free memory was 35.2 MB in the beginning and 35.2 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 773.51 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 29.0 MB in the beginning and 35.6 MB in the end (delta: -6.6 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.32 ms. Allocated memory is still 67.1 MB. Free memory was 35.6 MB in the beginning and 47.8 MB in the end (delta: -12.2 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.52 ms. Allocated memory is still 67.1 MB. Free memory was 47.8 MB in the beginning and 45.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2655.13 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.4 MB in the beginning and 49.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 21.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12542.26 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.6 MB in the beginning and 54.6 MB in the end (delta: -4.9 MB). Peak memory consumption was 46.8 MB. Max. memory is 16.1 GB. * Witness Printer took 156.77 ms. Allocated memory is still 98.6 MB. Free memory was 54.6 MB in the beginning and 26.2 MB in the end (delta: 28.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L488] int pumpRunning = 0; [L489] int systemActive = 1; [L668] int methAndRunningLastTime ; [L745] int cleanupTimeShifts = 4; [L852] int waterLevel = 1; [L853] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] int retValue_acc ; [L820] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L736] int retValue_acc ; [L739] retValue_acc = 1 [L740] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] tmp = valid_product() [L828] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L673] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int splverifierCounter ; [L415] int tmp ; [L416] int tmp___0 ; [L417] int tmp___1 ; [L418] int tmp___2 ; [L421] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] COND TRUE waterLevel < 2 [L871] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L528] COND TRUE ! pumpRunning [L640] int retValue_acc ; [L641] int tmp ; [L642] int tmp___0 ; [L932] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L935] COND FALSE !(waterLevel < 2) [L939] retValue_acc = 0 [L940] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp = isHighWaterSensorDry() [L648] COND FALSE !(\read(tmp)) [L651] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] retValue_acc = tmp___0 [L654] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L530] tmp = isHighWaterLevel() [L532] COND TRUE \read(tmp) [L559] int tmp ; [L584] int retValue_acc ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L588] retValue_acc = isMethaneLevelCritical() [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] tmp = isMethaneAlarm() [L565] COND FALSE !(\read(tmp)) [L553] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L683] tmp = isMethaneLevelCritical() [L685] COND FALSE !(\read(tmp)) [L701] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L882] COND FALSE !(\read(methaneLevelCritical)) [L885] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L690] COND FALSE !(\read(methAndRunningLastTime)) [L695] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L423] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L425] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L431] tmp = __VERIFIER_nondet_int() [L433] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L441] tmp___0 = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L451] tmp___2 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___2) [L662] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L496] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L858] COND TRUE waterLevel > 0 [L859] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L503] COND TRUE \read(systemActive) [L525] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L528] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L678] int tmp ; [L679] int tmp___0 ; [L891] int retValue_acc ; [L894] retValue_acc = methaneLevelCritical [L895] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L683] tmp = isMethaneLevelCritical() [L685] COND TRUE \read(tmp) [L595] int retValue_acc ; [L598] retValue_acc = pumpRunning [L599] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L687] tmp___0 = isPumpRunning() [L689] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L690] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L3] __assert_fail("0", "minepump_spec2_product42.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 94 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.3s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 874 SDtfs, 1278 SDslu, 1873 SDs, 0 SdLazy, 222 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 689 GetRequests, 640 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred 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, 986 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 410 NumberOfCodeBlocks, 410 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 38716 SizeOfPredicates, 21 NumberOfNonLiveVariables, 2335 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28/28 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...