./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eee587482483666264883da3a201ae82d389545c ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eee587482483666264883da3a201ae82d389545c ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:42,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:42,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:42,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:42,587 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:42,588 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:42,590 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:42,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:42,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:42,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:42,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:42,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:42,599 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:42,600 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:42,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:42,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:42,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:42,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:42,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:42,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:42,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:42,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:42,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:42,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:42,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:42,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:42,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:42,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:42,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:42,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:42,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:42,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:42,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:42,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:42,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:42,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:42,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:42,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:42,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:42,634 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:42,635 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:42,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:42,664 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:42,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:42,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:42,666 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:42,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:42,666 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:42,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:42,667 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:42,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:42,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:42,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:42,667 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:42,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:42,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:42,668 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:42,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:42,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:42,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:42,669 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:42,669 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:42,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:42,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:42,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:42,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:42,671 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:42,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:42,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:42,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:42,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:42,672 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:42,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:42,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:42,673 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:42,673 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:42,673 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eee587482483666264883da3a201ae82d389545c [2021-10-11 02:32:42,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:42,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:42,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:42,952 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:42,953 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:42,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-10-11 02:32:43,040 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/952f48dcb/c4c77717eb1d49ffac459fc52e65ca1a/FLAG0d06438e1 [2021-10-11 02:32:43,558 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:43,559 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-10-11 02:32:43,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/952f48dcb/c4c77717eb1d49ffac459fc52e65ca1a/FLAG0d06438e1 [2021-10-11 02:32:43,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/952f48dcb/c4c77717eb1d49ffac459fc52e65ca1a [2021-10-11 02:32:43,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:43,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:43,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:43,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:43,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:43,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3d0aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:43, skipping insertion in model container [2021-10-11 02:32:43,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:43" (1/1) ... [2021-10-11 02:32:43,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:43,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:44,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17619,17632] [2021-10-11 02:32:44,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:44,304 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:32:44,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@242373d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:44, skipping insertion in model container [2021-10-11 02:32:44,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:44,306 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:32:44,308 INFO L168 Benchmark]: Toolchain (without parser) took 412.14 ms. Allocated memory is still 107.0 MB. Free memory was 63.6 MB in the beginning and 77.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:44,308 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 107.0 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:44,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.45 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 77.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:44,311 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 107.0 MB. Free memory is still 81.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 405.45 ms. Allocated memory is still 107.0 MB. Free memory was 63.4 MB in the beginning and 77.8 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 171]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:46,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:46,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:46,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:46,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:46,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:46,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:46,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:46,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:46,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:46,649 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:46,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:46,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:46,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:46,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:46,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:46,662 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:46,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:46,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:46,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:46,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:46,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:46,684 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:46,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:46,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:46,697 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:46,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:46,700 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:46,700 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:46,702 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:46,702 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:46,703 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:46,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:46,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:46,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:46,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:46,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:46,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:46,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:46,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:46,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:46,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:46,764 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:46,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:46,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:46,766 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:46,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:46,767 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:46,767 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:46,767 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:46,768 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:46,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:46,771 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:46,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:46,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:46,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:46,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:46,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:46,773 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:46,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:46,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:46,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:46,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:46,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:46,774 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:46,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:46,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:46,775 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:46,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:46,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:46,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:46,776 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:46,777 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:46,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:46,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:46,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:46,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:46,778 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eee587482483666264883da3a201ae82d389545c [2021-10-11 02:32:47,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:47,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:47,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:47,240 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:47,245 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:47,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-10-11 02:32:47,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/255696706/fdc4963d7ad64a27bfa5b553310429c5/FLAG8ef374fc5 [2021-10-11 02:32:47,991 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:48,001 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c [2021-10-11 02:32:48,020 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/255696706/fdc4963d7ad64a27bfa5b553310429c5/FLAG8ef374fc5 [2021-10-11 02:32:48,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/data/255696706/fdc4963d7ad64a27bfa5b553310429c5 [2021-10-11 02:32:48,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:48,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:48,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:48,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:48,254 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:48,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71caeab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:48, skipping insertion in model container [2021-10-11 02:32:48,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:48" (1/1) ... [2021-10-11 02:32:48,272 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:48,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:48,778 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17619,17632] [2021-10-11 02:32:48,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:48,800 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:32:48,816 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:48,925 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17619,17632] [2021-10-11 02:32:48,926 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:48,931 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:48,999 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/sv-benchmarks/c/product-lines/minepump_spec4_product42.cil.c[17619,17632] [2021-10-11 02:32:49,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:49,061 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:49,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49 WrapperNode [2021-10-11 02:32:49,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:49,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:49,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:49,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:49,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:49,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:49,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:49,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:49,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... [2021-10-11 02:32:49,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:49,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:49,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:49,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:49,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:49,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:49,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:51,921 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:51,922 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-11 02:32:51,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:51 BoogieIcfgContainer [2021-10-11 02:32:51,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:51,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:51,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:51,928 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:51,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:48" (1/3) ... [2021-10-11 02:32:51,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40269e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:51, skipping insertion in model container [2021-10-11 02:32:51,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:49" (2/3) ... [2021-10-11 02:32:51,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40269e15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:51, skipping insertion in model container [2021-10-11 02:32:51,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:51" (3/3) ... [2021-10-11 02:32:51,932 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product42.cil.c [2021-10-11 02:32:51,962 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:51,966 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:32:51,978 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:32:52,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:52,017 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:52,018 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:52,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:52,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:52,018 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:52,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:52,019 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:52,037 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2021-10-11 02:32:52,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:32:52,044 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1594902839, now seen corresponding path program 1 times [2021-10-11 02:32:52,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:52,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657521102] [2021-10-11 02:32:52,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:52,343 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:32:52,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:52,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:52,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657521102] [2021-10-11 02:32:52,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:52,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:52,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529807172] [2021-10-11 02:32:52,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:52,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:52,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:52,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:52,401 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2021-10-11 02:32:52,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:52,429 INFO L93 Difference]: Finished difference Result 168 states and 251 transitions. [2021-10-11 02:32:52,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:52,430 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:32:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:52,440 INFO L225 Difference]: With dead ends: 168 [2021-10-11 02:32:52,440 INFO L226 Difference]: Without dead ends: 83 [2021-10-11 02:32:52,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:52,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-10-11 02:32:52,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-11 02:32:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-10-11 02:32:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2021-10-11 02:32:52,484 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 16 [2021-10-11 02:32:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:52,484 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-11 02:32:52,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2021-10-11 02:32:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:52,485 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:52,486 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:52,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:52,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:52,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:52,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1653307560, now seen corresponding path program 1 times [2021-10-11 02:32:52,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:52,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979780306] [2021-10-11 02:32:52,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:53,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:53,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:53,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:53,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979780306] [2021-10-11 02:32:53,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:53,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:53,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356335573] [2021-10-11 02:32:53,079 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:53,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:53,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:53,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,082 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. Second operand 3 states. [2021-10-11 02:32:53,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:53,109 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2021-10-11 02:32:53,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:53,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:32:53,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:53,113 INFO L225 Difference]: With dead ends: 83 [2021-10-11 02:32:53,113 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:32:53,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:32:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:32:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:32:53,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-11 02:32:53,126 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 17 [2021-10-11 02:32:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:53,130 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-11 02:32:53,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:53,131 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-11 02:32:53,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:32:53,133 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:32:53,347 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,348 INFO L82 PathProgramCache]: Analyzing trace with hash 533078269, now seen corresponding path program 1 times [2021-10-11 02:32:53,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:53,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [708844581] [2021-10-11 02:32:53,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:53,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:53,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:53,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:53,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:53,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [708844581] [2021-10-11 02:32:53,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:53,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:53,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537693132] [2021-10-11 02:32:53,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:53,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,607 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand 3 states. [2021-10-11 02:32:53,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:53,655 INFO L93 Difference]: Finished difference Result 68 states and 98 transitions. [2021-10-11 02:32:53,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:53,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:32:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:53,659 INFO L225 Difference]: With dead ends: 68 [2021-10-11 02:32:53,660 INFO L226 Difference]: Without dead ends: 37 [2021-10-11 02:32:53,660 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:53,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-11 02:32:53,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-11 02:32:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2021-10-11 02:32:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2021-10-11 02:32:53,672 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 22 [2021-10-11 02:32:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:53,673 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2021-10-11 02:32:53,673 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:53,673 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2021-10-11 02:32:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:32:53,675 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:53,675 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:53,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:32:53,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:53,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:53,891 INFO L82 PathProgramCache]: Analyzing trace with hash 545820985, now seen corresponding path program 1 times [2021-10-11 02:32:53,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:53,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1045829412] [2021-10-11 02:32:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:54,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:54,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:54,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:54,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:54,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1045829412] [2021-10-11 02:32:54,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:54,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:54,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113123410] [2021-10-11 02:32:54,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:54,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:54,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:54,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:54,175 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2021-10-11 02:32:54,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:54,242 INFO L93 Difference]: Finished difference Result 89 states and 126 transitions. [2021-10-11 02:32:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:54,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:32:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:54,245 INFO L225 Difference]: With dead ends: 89 [2021-10-11 02:32:54,245 INFO L226 Difference]: Without dead ends: 58 [2021-10-11 02:32:54,246 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:54,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-11 02:32:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-10-11 02:32:54,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 02:32:54,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2021-10-11 02:32:54,267 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 23 [2021-10-11 02:32:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:54,269 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2021-10-11 02:32:54,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:54,269 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2021-10-11 02:32:54,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:32:54,271 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:54,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:54,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:32:54,488 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:54,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:54,489 INFO L82 PathProgramCache]: Analyzing trace with hash 2110814541, now seen corresponding path program 1 times [2021-10-11 02:32:54,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:54,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794808227] [2021-10-11 02:32:54,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:54,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:54,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:54,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:54,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794808227] [2021-10-11 02:32:54,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:54,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:54,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844650755] [2021-10-11 02:32:54,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:54,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:54,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:54,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:54,775 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 5 states. [2021-10-11 02:32:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:54,910 INFO L93 Difference]: Finished difference Result 203 states and 292 transitions. [2021-10-11 02:32:54,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:54,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2021-10-11 02:32:54,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:54,912 INFO L225 Difference]: With dead ends: 203 [2021-10-11 02:32:54,913 INFO L226 Difference]: Without dead ends: 153 [2021-10-11 02:32:54,913 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:54,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-10-11 02:32:54,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 98. [2021-10-11 02:32:54,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-11 02:32:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 134 transitions. [2021-10-11 02:32:54,947 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 134 transitions. Word has length 29 [2021-10-11 02:32:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:54,948 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 134 transitions. [2021-10-11 02:32:54,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 134 transitions. [2021-10-11 02:32:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:32:54,949 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:54,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:55,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:32:55,165 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:55,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:55,166 INFO L82 PathProgramCache]: Analyzing trace with hash 244930959, now seen corresponding path program 1 times [2021-10-11 02:32:55,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:55,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [829796337] [2021-10-11 02:32:55,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:55,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:32:55,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:55,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:55,447 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:55,448 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [829796337] [2021-10-11 02:32:55,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:55,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:55,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674281864] [2021-10-11 02:32:55,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:55,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:55,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:55,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:55,456 INFO L87 Difference]: Start difference. First operand 98 states and 134 transitions. Second operand 4 states. [2021-10-11 02:32:56,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:56,938 INFO L93 Difference]: Finished difference Result 246 states and 347 transitions. [2021-10-11 02:32:56,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:56,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:32:56,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:56,940 INFO L225 Difference]: With dead ends: 246 [2021-10-11 02:32:56,940 INFO L226 Difference]: Without dead ends: 196 [2021-10-11 02:32:56,941 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:56,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-10-11 02:32:56,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 189. [2021-10-11 02:32:56,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-10-11 02:32:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 262 transitions. [2021-10-11 02:32:56,981 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 262 transitions. Word has length 30 [2021-10-11 02:32:56,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:56,981 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 262 transitions. [2021-10-11 02:32:56,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:56,982 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 262 transitions. [2021-10-11 02:32:56,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:32:56,984 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:56,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:57,196 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:32:57,197 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:57,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:57,197 INFO L82 PathProgramCache]: Analyzing trace with hash 503096397, now seen corresponding path program 1 times [2021-10-11 02:32:57,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:57,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [973325450] [2021-10-11 02:32:57,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:57,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:32:57,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:57,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:57,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [973325450] [2021-10-11 02:32:57,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:57,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:57,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084834329] [2021-10-11 02:32:57,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:57,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:57,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:57,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:57,450 INFO L87 Difference]: Start difference. First operand 189 states and 262 transitions. Second operand 4 states. [2021-10-11 02:32:57,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:57,560 INFO L93 Difference]: Finished difference Result 566 states and 797 transitions. [2021-10-11 02:32:57,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:57,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2021-10-11 02:32:57,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:57,564 INFO L225 Difference]: With dead ends: 566 [2021-10-11 02:32:57,564 INFO L226 Difference]: Without dead ends: 422 [2021-10-11 02:32:57,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-10-11 02:32:57,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 191. [2021-10-11 02:32:57,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-10-11 02:32:57,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 263 transitions. [2021-10-11 02:32:57,615 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 263 transitions. Word has length 30 [2021-10-11 02:32:57,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:57,617 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 263 transitions. [2021-10-11 02:32:57,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:57,618 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 263 transitions. [2021-10-11 02:32:57,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:32:57,626 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:57,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:57,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:32:57,843 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:57,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:57,843 INFO L82 PathProgramCache]: Analyzing trace with hash 110069387, now seen corresponding path program 1 times [2021-10-11 02:32:57,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:57,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727753875] [2021-10-11 02:32:57,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:58,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:58,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:58,111 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:58,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [727753875] [2021-10-11 02:32:58,111 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:58,111 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:58,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712739099] [2021-10-11 02:32:58,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:58,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:58,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:58,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:58,113 INFO L87 Difference]: Start difference. First operand 191 states and 263 transitions. Second operand 5 states. [2021-10-11 02:32:58,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:58,222 INFO L93 Difference]: Finished difference Result 572 states and 798 transitions. [2021-10-11 02:32:58,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:58,223 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2021-10-11 02:32:58,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:58,229 INFO L225 Difference]: With dead ends: 572 [2021-10-11 02:32:58,229 INFO L226 Difference]: Without dead ends: 387 [2021-10-11 02:32:58,231 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-10-11 02:32:58,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 200. [2021-10-11 02:32:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-10-11 02:32:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 271 transitions. [2021-10-11 02:32:58,270 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 271 transitions. Word has length 30 [2021-10-11 02:32:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:58,271 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 271 transitions. [2021-10-11 02:32:58,271 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 271 transitions. [2021-10-11 02:32:58,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:32:58,272 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:58,272 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:58,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:32:58,484 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:58,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:58,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1480480129, now seen corresponding path program 1 times [2021-10-11 02:32:58,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:58,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619255494] [2021-10-11 02:32:58,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:58,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:58,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:58,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:58,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:58,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:58,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619255494] [2021-10-11 02:32:58,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:58,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:58,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562588774] [2021-10-11 02:32:58,779 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:58,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:58,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:58,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:58,781 INFO L87 Difference]: Start difference. First operand 200 states and 271 transitions. Second operand 6 states. [2021-10-11 02:32:59,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:59,081 INFO L93 Difference]: Finished difference Result 1082 states and 1468 transitions. [2021-10-11 02:32:59,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:32:59,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2021-10-11 02:32:59,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:59,088 INFO L225 Difference]: With dead ends: 1082 [2021-10-11 02:32:59,089 INFO L226 Difference]: Without dead ends: 888 [2021-10-11 02:32:59,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:32:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2021-10-11 02:32:59,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 382. [2021-10-11 02:32:59,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2021-10-11 02:32:59,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 510 transitions. [2021-10-11 02:32:59,164 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 510 transitions. Word has length 33 [2021-10-11 02:32:59,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:59,164 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 510 transitions. [2021-10-11 02:32:59,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:59,164 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 510 transitions. [2021-10-11 02:32:59,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:32:59,167 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:59,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:59,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:32:59,386 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:59,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:59,387 INFO L82 PathProgramCache]: Analyzing trace with hash 294527233, now seen corresponding path program 1 times [2021-10-11 02:32:59,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:59,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [521910747] [2021-10-11 02:32:59,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:59,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:32:59,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:59,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:59,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:59,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [521910747] [2021-10-11 02:32:59,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:59,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:59,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139945298] [2021-10-11 02:32:59,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:59,670 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:59,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:59,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:59,671 INFO L87 Difference]: Start difference. First operand 382 states and 510 transitions. Second operand 6 states. [2021-10-11 02:33:01,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:01,535 INFO L93 Difference]: Finished difference Result 754 states and 1004 transitions. [2021-10-11 02:33:01,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:33:01,535 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2021-10-11 02:33:01,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:01,538 INFO L225 Difference]: With dead ends: 754 [2021-10-11 02:33:01,538 INFO L226 Difference]: Without dead ends: 462 [2021-10-11 02:33:01,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:01,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-10-11 02:33:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 376. [2021-10-11 02:33:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-10-11 02:33:01,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 498 transitions. [2021-10-11 02:33:01,613 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 498 transitions. Word has length 33 [2021-10-11 02:33:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:01,613 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 498 transitions. [2021-10-11 02:33:01,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:33:01,614 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 498 transitions. [2021-10-11 02:33:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 02:33:01,615 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:01,615 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:01,831 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:33:01,835 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:01,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:01,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1559974996, now seen corresponding path program 1 times [2021-10-11 02:33:01,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:01,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126680213] [2021-10-11 02:33:01,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:02,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:33:02,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:02,096 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:33:02,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:02,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126680213] [2021-10-11 02:33:02,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:02,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:02,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897067589] [2021-10-11 02:33:02,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:02,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:02,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:02,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:02,098 INFO L87 Difference]: Start difference. First operand 376 states and 498 transitions. Second operand 5 states. [2021-10-11 02:33:02,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:02,230 INFO L93 Difference]: Finished difference Result 846 states and 1124 transitions. [2021-10-11 02:33:02,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:33:02,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2021-10-11 02:33:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:02,233 INFO L225 Difference]: With dead ends: 846 [2021-10-11 02:33:02,234 INFO L226 Difference]: Without dead ends: 476 [2021-10-11 02:33:02,234 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:02,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2021-10-11 02:33:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 376. [2021-10-11 02:33:02,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2021-10-11 02:33:02,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 492 transitions. [2021-10-11 02:33:02,292 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 492 transitions. Word has length 47 [2021-10-11 02:33:02,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:02,292 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 492 transitions. [2021-10-11 02:33:02,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:02,292 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 492 transitions. [2021-10-11 02:33:02,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-10-11 02:33:02,293 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:02,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:02,506 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,507 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:02,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:02,507 INFO L82 PathProgramCache]: Analyzing trace with hash -2069448086, now seen corresponding path program 1 times [2021-10-11 02:33:02,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:02,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34129088] [2021-10-11 02:33:02,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:02,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:33:02,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:33:02,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:02,746 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34129088] [2021-10-11 02:33:02,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:02,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:02,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280323581] [2021-10-11 02:33:02,747 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:02,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:02,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:02,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:02,748 INFO L87 Difference]: Start difference. First operand 376 states and 492 transitions. Second operand 4 states. [2021-10-11 02:33:02,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:02,840 INFO L93 Difference]: Finished difference Result 763 states and 1004 transitions. [2021-10-11 02:33:02,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:02,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2021-10-11 02:33:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:02,843 INFO L225 Difference]: With dead ends: 763 [2021-10-11 02:33:02,843 INFO L226 Difference]: Without dead ends: 393 [2021-10-11 02:33:02,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:02,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-10-11 02:33:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 324. [2021-10-11 02:33:02,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2021-10-11 02:33:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 421 transitions. [2021-10-11 02:33:02,891 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 421 transitions. Word has length 47 [2021-10-11 02:33:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:02,891 INFO L481 AbstractCegarLoop]: Abstraction has 324 states and 421 transitions. [2021-10-11 02:33:02,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:02,891 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 421 transitions. [2021-10-11 02:33:02,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:33:02,892 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:02,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:03,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2021-10-11 02:33:03,109 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1874975382, now seen corresponding path program 1 times [2021-10-11 02:33:03,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:03,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570669205] [2021-10-11 02:33:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,363 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:03,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:03,474 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:03,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570669205] [2021-10-11 02:33:03,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [962614817] [2021-10-11 02:33:03,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:33:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,725 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:03,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:03,775 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:03,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089108665] [2021-10-11 02:33:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:33:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:03,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:33:04,026 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:33:04,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:33:04,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:33:04,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914052561] [2021-10-11 02:33:04,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:33:04,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:33:04,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:33:04,029 INFO L87 Difference]: Start difference. First operand 324 states and 421 transitions. Second operand 10 states. [2021-10-11 02:33:07,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:07,988 INFO L93 Difference]: Finished difference Result 1429 states and 1890 transitions. [2021-10-11 02:33:07,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:33:07,988 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2021-10-11 02:33:07,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:07,995 INFO L225 Difference]: With dead ends: 1429 [2021-10-11 02:33:07,995 INFO L226 Difference]: Without dead ends: 1155 [2021-10-11 02:33:07,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:33:07,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2021-10-11 02:33:08,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 424. [2021-10-11 02:33:08,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2021-10-11 02:33:08,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 566 transitions. [2021-10-11 02:33:08,088 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 566 transitions. Word has length 48 [2021-10-11 02:33:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:08,088 INFO L481 AbstractCegarLoop]: Abstraction has 424 states and 566 transitions. [2021-10-11 02:33:08,089 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:33:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 566 transitions. [2021-10-11 02:33:08,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-11 02:33:08,090 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:08,090 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:08,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2021-10-11 02:33:08,714 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:08,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1478909471, now seen corresponding path program 2 times [2021-10-11 02:33:08,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:08,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909598241] [2021-10-11 02:33:08,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:10,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:11,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:11,305 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:33:11,306 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:33:11,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2021-10-11 02:33:11,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:11 BoogieIcfgContainer [2021-10-11 02:33:11,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:11,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:11,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:11,684 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:11,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:51" (3/4) ... [2021-10-11 02:33:11,686 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:33:11,835 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42c55c9d-49a8-4078-9634-6ef34bf16fd5/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:11,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:11,836 INFO L168 Benchmark]: Toolchain (without parser) took 23591.23 ms. Allocated memory was 65.0 MB in the beginning and 142.6 MB in the end (delta: 77.6 MB). Free memory was 43.2 MB in the beginning and 65.1 MB in the end (delta: -21.8 MB). Peak memory consumption was 54.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,837 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:11,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 813.30 ms. Allocated memory is still 65.0 MB. Free memory was 43.1 MB in the beginning and 46.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,838 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.23 ms. Allocated memory is still 65.0 MB. Free memory was 46.1 MB in the beginning and 43.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,838 INFO L168 Benchmark]: Boogie Preprocessor took 84.71 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 40.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,839 INFO L168 Benchmark]: RCFGBuilder took 2705.46 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,839 INFO L168 Benchmark]: TraceAbstraction took 19757.88 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 38.0 MB in the beginning and 90.2 MB in the end (delta: -52.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,840 INFO L168 Benchmark]: Witness Printer took 151.57 ms. Allocated memory is still 142.6 MB. Free memory was 90.2 MB in the beginning and 65.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,842 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 65.0 MB. Free memory is still 45.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 813.30 ms. Allocated memory is still 65.0 MB. Free memory was 43.1 MB in the beginning and 46.1 MB in the end (delta: -3.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.23 ms. Allocated memory is still 65.0 MB. Free memory was 46.1 MB in the beginning and 43.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.71 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 40.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2705.46 ms. Allocated memory was 65.0 MB in the beginning and 79.7 MB in the end (delta: 14.7 MB). Free memory was 40.4 MB in the beginning and 38.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19757.88 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 38.0 MB in the beginning and 90.2 MB in the end (delta: -52.3 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. * Witness Printer took 151.57 ms. Allocated memory is still 142.6 MB. Free memory was 90.2 MB in the beginning and 65.1 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 926]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L312] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L575] int cleanupTimeShifts = 4; [L744] int pumpRunning = 0; [L745] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L651] int retValue_acc ; [L652] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L658] tmp = valid_product() [L660] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L676] int splverifierCounter ; [L677] int tmp ; [L678] int tmp___0 ; [L679] int tmp___1 ; [L680] int tmp___2 ; [L683] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L685] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L687] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L693] tmp = __VERIFIER_nondet_int() [L695] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L703] tmp___0 = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L713] tmp___2 = __VERIFIER_nondet_int() [L715] COND TRUE \read(tmp___2) [L917] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L758] COND TRUE \read(systemActive) [L780] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L783] COND TRUE ! pumpRunning [L895] int retValue_acc ; [L896] int tmp ; [L897] int tmp___0 ; [L129] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L132] COND FALSE !(waterLevel < 2) [L136] retValue_acc = 0 [L137] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L901] tmp = isHighWaterSensorDry() [L903] COND FALSE !(\read(tmp)) [L906] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] retValue_acc = tmp___0 [L909] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L785] tmp = isHighWaterLevel() [L787] COND TRUE \read(tmp) [L814] int tmp ; [L839] int retValue_acc ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L843] retValue_acc = isMethaneLevelCritical() [L845] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] tmp = isMethaneAlarm() [L820] COND FALSE !(\read(tmp)) [L808] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L550] int tmp ; [L551] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L555] tmp = getWaterLevel() [L557] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L685] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L687] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L693] tmp = __VERIFIER_nondet_int() [L695] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L703] tmp___0 = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L713] tmp___2 = __VERIFIER_nondet_int() [L715] COND TRUE \read(tmp___2) [L917] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L751] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L758] COND TRUE \read(systemActive) [L780] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L783] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L550] int tmp ; [L551] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L555] tmp = getWaterLevel() [L557] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L685] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L687] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L693] tmp = __VERIFIER_nondet_int() [L695] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L703] tmp___0 = __VERIFIER_nondet_int() [L705] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L713] tmp___2 = __VERIFIER_nondet_int() [L715] COND TRUE \read(tmp___2) [L917] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L751] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L55] COND TRUE waterLevel > 0 [L56] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L758] COND TRUE \read(systemActive) [L780] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L783] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L550] int tmp ; [L551] int tmp___0 ; [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L555] tmp = getWaterLevel() [L557] COND TRUE tmp == 0 [L850] int retValue_acc ; [L853] retValue_acc = pumpRunning [L854] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L559] tmp___0 = isPumpRunning() [L561] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L926] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 87 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1085 SDtfs, 1841 SDslu, 2074 SDs, 0 SdLazy, 367 SolverSat, 68 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 668 GetRequests, 598 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=424occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 1974 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 627 ConstructedInterpolants, 0 QuantifiedInterpolants, 78815 SizeOfPredicates, 32 NumberOfNonLiveVariables, 3218 ConjunctsInSsa, 67 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 58/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...