./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f98010979adc33ea49508c52e1057d4173359b78 ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f98010979adc33ea49508c52e1057d4173359b78 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-f470102 [2019-12-07 19:06:39,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:06:39,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:06:39,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:06:39,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:06:39,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:06:39,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:06:39,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:06:39,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:06:39,640 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:06:39,641 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:06:39,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:06:39,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:06:39,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:06:39,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:06:39,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:06:39,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:06:39,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:06:39,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:06:39,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:06:39,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:06:39,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:06:39,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:06:39,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:06:39,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:06:39,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:06:39,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:06:39,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:06:39,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:06:39,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:06:39,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:06:39,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:06:39,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:06:39,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:06:39,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:06:39,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:06:39,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:06:39,657 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:06:39,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:06:39,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:06:39,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:06:39,659 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 19:06:39,669 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:06:39,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:06:39,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:06:39,669 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:06:39,670 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 19:06:39,670 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:06:39,671 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 19:06:39,671 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 19:06:39,671 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 19:06:39,671 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:06:39,671 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:06:39,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:06:39,673 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:06:39,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:06:39,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 19:06:39,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 19:06:39,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:06:39,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:06:39,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:06:39,674 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> f98010979adc33ea49508c52e1057d4173359b78 [2019-12-07 19:06:39,772 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:06:39,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:06:39,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:06:39,784 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:06:39,784 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:06:39,784 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2019-12-07 19:06:39,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/c52053e74/4aecff20ab5e408f82aaa6a828475dba/FLAGd88702904 [2019-12-07 19:06:40,176 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:06:40,176 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2019-12-07 19:06:40,185 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/c52053e74/4aecff20ab5e408f82aaa6a828475dba/FLAGd88702904 [2019-12-07 19:06:40,194 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/c52053e74/4aecff20ab5e408f82aaa6a828475dba [2019-12-07 19:06:40,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:06:40,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:06:40,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:06:40,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:06:40,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:06:40,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:06:40" (1/1) ... [2019-12-07 19:06:40,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b211215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:40, skipping insertion in model container [2019-12-07 19:06:40,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:06:40" (1/1) ... [2019-12-07 19:06:40,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:06:40,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:06:40,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:06:40,492 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) [2019-12-07 19:06:40,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@19a56d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:40, skipping insertion in model container [2019-12-07 19:06:40,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:06:40,493 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 19:06:40,496 INFO L168 Benchmark]: Toolchain (without parser) took 298.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 945.0 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:40,496 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:06:40,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:40,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -157.8 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 661]: 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 0.1.25-f470102 [2019-12-07 19:06:41,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 19:06:41,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 19:06:41,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 19:06:41,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 19:06:41,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 19:06:41,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 19:06:41,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 19:06:41,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 19:06:41,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 19:06:41,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 19:06:41,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 19:06:41,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 19:06:41,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 19:06:41,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 19:06:41,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 19:06:41,733 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 19:06:41,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 19:06:41,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 19:06:41,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 19:06:41,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 19:06:41,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 19:06:41,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 19:06:41,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 19:06:41,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 19:06:41,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 19:06:41,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 19:06:41,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 19:06:41,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 19:06:41,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 19:06:41,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 19:06:41,744 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 19:06:41,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 19:06:41,745 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 19:06:41,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 19:06:41,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 19:06:41,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 19:06:41,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 19:06:41,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 19:06:41,747 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 19:06:41,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 19:06:41,748 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 19:06:41,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 19:06:41,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 19:06:41,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 19:06:41,759 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 19:06:41,759 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 19:06:41,759 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 19:06:41,760 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 19:06:41,760 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 19:06:41,760 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 19:06:41,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 19:06:41,760 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 19:06:41,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 19:06:41,761 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 19:06:41,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 19:06:41,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:06:41,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 19:06:41,763 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 19:06:41,764 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_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 -> f98010979adc33ea49508c52e1057d4173359b78 [2019-12-07 19:06:41,937 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 19:06:41,945 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 19:06:41,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 19:06:41,948 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 19:06:41,948 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 19:06:41,949 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2019-12-07 19:06:41,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/0824696b7/ef624b5686e5490cb19444d10ec91799/FLAG41b5e1133 [2019-12-07 19:06:42,452 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 19:06:42,452 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/sv-benchmarks/c/product-lines/minepump_spec1_product55.cil.c [2019-12-07 19:06:42,463 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/0824696b7/ef624b5686e5490cb19444d10ec91799/FLAG41b5e1133 [2019-12-07 19:06:42,969 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/data/0824696b7/ef624b5686e5490cb19444d10ec91799 [2019-12-07 19:06:42,971 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 19:06:42,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 19:06:42,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 19:06:42,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 19:06:42,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 19:06:42,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:06:42" (1/1) ... [2019-12-07 19:06:42,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afbba0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:42, skipping insertion in model container [2019-12-07 19:06:42,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 07:06:42" (1/1) ... [2019-12-07 19:06:42,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 19:06:43,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:06:43,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:06:43,259 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 19:06:43,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 19:06:43,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:06:43,324 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 19:06:43,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 19:06:43,397 INFO L208 MainTranslator]: Completed translation [2019-12-07 19:06:43,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43 WrapperNode [2019-12-07 19:06:43,397 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 19:06:43,398 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 19:06:43,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 19:06:43,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 19:06:43,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 19:06:43,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 19:06:43,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 19:06:43,450 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 19:06:43,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... [2019-12-07 19:06:43,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 19:06:43,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 19:06:43,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 19:06:43,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 19:06:43,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 19:06:43,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 19:06:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 19:06:43,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 19:06:43,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 19:06:44,191 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 19:06:44,191 INFO L287 CfgBuilder]: Removed 280 assume(true) statements. [2019-12-07 19:06:44,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:06:44 BoogieIcfgContainer [2019-12-07 19:06:44,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 19:06:44,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 19:06:44,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 19:06:44,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 19:06:44,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 07:06:42" (1/3) ... [2019-12-07 19:06:44,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91d325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:06:44, skipping insertion in model container [2019-12-07 19:06:44,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 07:06:43" (2/3) ... [2019-12-07 19:06:44,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c91d325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 07:06:44, skipping insertion in model container [2019-12-07 19:06:44,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:06:44" (3/3) ... [2019-12-07 19:06:44,198 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product55.cil.c [2019-12-07 19:06:44,205 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 19:06:44,210 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 19:06:44,218 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 19:06:44,236 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 19:06:44,236 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 19:06:44,236 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 19:06:44,236 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 19:06:44,236 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 19:06:44,236 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 19:06:44,236 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 19:06:44,237 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 19:06:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states. [2019-12-07 19:06:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 19:06:44,255 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:44,255 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:06:44,255 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:44,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:44,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1084846627, now seen corresponding path program 1 times [2019-12-07 19:06:44,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:44,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008964553] [2019-12-07 19:06:44,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:44,395 INFO L264 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 19:06:44,399 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:44,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:44,409 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:44,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:44,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008964553] [2019-12-07 19:06:44,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:44,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 19:06:44,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284295820] [2019-12-07 19:06:44,417 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 19:06:44,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:44,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 19:06:44,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:06:44,427 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 2 states. [2019-12-07 19:06:44,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:44,455 INFO L93 Difference]: Finished difference Result 376 states and 575 transitions. [2019-12-07 19:06:44,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 19:06:44,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-12-07 19:06:44,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:44,465 INFO L225 Difference]: With dead ends: 376 [2019-12-07 19:06:44,465 INFO L226 Difference]: Without dead ends: 187 [2019-12-07 19:06:44,468 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 19:06:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-12-07 19:06:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2019-12-07 19:06:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-12-07 19:06:44,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 279 transitions. [2019-12-07 19:06:44,503 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 279 transitions. Word has length 16 [2019-12-07 19:06:44,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:44,503 INFO L462 AbstractCegarLoop]: Abstraction has 187 states and 279 transitions. [2019-12-07 19:06:44,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 19:06:44,503 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 279 transitions. [2019-12-07 19:06:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 19:06:44,504 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:44,504 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 19:06:44,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 19:06:44,706 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:44,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:44,707 INFO L82 PathProgramCache]: Analyzing trace with hash 38089730, now seen corresponding path program 1 times [2019-12-07 19:06:44,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:44,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565607285] [2019-12-07 19:06:44,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:44,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:44,920 INFO L264 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:06:44,922 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:44,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:44,935 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:44,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:44,944 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565607285] [2019-12-07 19:06:44,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:44,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 19:06:44,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94043166] [2019-12-07 19:06:44,946 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:06:44,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:44,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:06:44,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:44,947 INFO L87 Difference]: Start difference. First operand 187 states and 279 transitions. Second operand 4 states. [2019-12-07 19:06:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:44,964 INFO L93 Difference]: Finished difference Result 187 states and 279 transitions. [2019-12-07 19:06:44,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:06:44,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-12-07 19:06:44,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:44,966 INFO L225 Difference]: With dead ends: 187 [2019-12-07 19:06:44,966 INFO L226 Difference]: Without dead ends: 73 [2019-12-07 19:06:44,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:44,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-12-07 19:06:44,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-12-07 19:06:44,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-12-07 19:06:44,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 108 transitions. [2019-12-07 19:06:44,975 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 108 transitions. Word has length 17 [2019-12-07 19:06:44,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:44,976 INFO L462 AbstractCegarLoop]: Abstraction has 73 states and 108 transitions. [2019-12-07 19:06:44,976 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:06:44,976 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 108 transitions. [2019-12-07 19:06:44,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 19:06:44,977 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:44,977 INFO L410 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] [2019-12-07 19:06:45,177 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 19:06:45,178 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:45,179 INFO L82 PathProgramCache]: Analyzing trace with hash -1082167242, now seen corresponding path program 1 times [2019-12-07 19:06:45,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:45,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1790963156] [2019-12-07 19:06:45,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:45,360 INFO L264 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:06:45,361 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:45,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:45,369 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:45,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:45,375 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1790963156] [2019-12-07 19:06:45,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:45,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:06:45,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223433382] [2019-12-07 19:06:45,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:06:45,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:45,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:06:45,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:45,376 INFO L87 Difference]: Start difference. First operand 73 states and 108 transitions. Second operand 4 states. [2019-12-07 19:06:45,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:45,396 INFO L93 Difference]: Finished difference Result 230 states and 346 transitions. [2019-12-07 19:06:45,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:06:45,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-07 19:06:45,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:45,399 INFO L225 Difference]: With dead ends: 230 [2019-12-07 19:06:45,399 INFO L226 Difference]: Without dead ends: 163 [2019-12-07 19:06:45,400 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-12-07 19:06:45,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 92. [2019-12-07 19:06:45,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-12-07 19:06:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 137 transitions. [2019-12-07 19:06:45,412 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 137 transitions. Word has length 22 [2019-12-07 19:06:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:45,413 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 137 transitions. [2019-12-07 19:06:45,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:06:45,413 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 137 transitions. [2019-12-07 19:06:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 19:06:45,414 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:45,414 INFO L410 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] [2019-12-07 19:06:45,615 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 19:06:45,615 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:45,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:45,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1933185311, now seen corresponding path program 1 times [2019-12-07 19:06:45,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:45,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535649149] [2019-12-07 19:06:45,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:45,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:45,771 INFO L264 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:06:45,773 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:45,779 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:45,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:45,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535649149] [2019-12-07 19:06:45,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:45,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 19:06:45,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254019711] [2019-12-07 19:06:45,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 19:06:45,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:45,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 19:06:45,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:06:45,783 INFO L87 Difference]: Start difference. First operand 92 states and 137 transitions. Second operand 3 states. [2019-12-07 19:06:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:45,849 INFO L93 Difference]: Finished difference Result 187 states and 280 transitions. [2019-12-07 19:06:45,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 19:06:45,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 19:06:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:45,851 INFO L225 Difference]: With dead ends: 187 [2019-12-07 19:06:45,851 INFO L226 Difference]: Without dead ends: 101 [2019-12-07 19:06:45,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 19:06:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-12-07 19:06:45,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2019-12-07 19:06:45,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-12-07 19:06:45,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2019-12-07 19:06:45,861 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 25 [2019-12-07 19:06:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:45,861 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2019-12-07 19:06:45,861 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 19:06:45,861 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2019-12-07 19:06:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 19:06:45,862 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:45,862 INFO L410 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] [2019-12-07 19:06:46,063 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 19:06:46,063 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:46,064 INFO L82 PathProgramCache]: Analyzing trace with hash 2034893835, now seen corresponding path program 1 times [2019-12-07 19:06:46,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:46,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281401604] [2019-12-07 19:06:46,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:46,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:46,210 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:06:46,212 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:46,225 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:46,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281401604] [2019-12-07 19:06:46,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:46,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 19:06:46,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121162952] [2019-12-07 19:06:46,235 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:06:46,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:46,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:06:46,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:06:46,236 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand 5 states. [2019-12-07 19:06:46,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:46,320 INFO L93 Difference]: Finished difference Result 485 states and 703 transitions. [2019-12-07 19:06:46,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 19:06:46,321 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-12-07 19:06:46,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:46,323 INFO L225 Difference]: With dead ends: 485 [2019-12-07 19:06:46,324 INFO L226 Difference]: Without dead ends: 392 [2019-12-07 19:06:46,324 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 19:06:46,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-12-07 19:06:46,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 184. [2019-12-07 19:06:46,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 19:06:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 260 transitions. [2019-12-07 19:06:46,347 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 260 transitions. Word has length 25 [2019-12-07 19:06:46,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:46,347 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 260 transitions. [2019-12-07 19:06:46,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:06:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 260 transitions. [2019-12-07 19:06:46,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-12-07 19:06:46,349 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:46,349 INFO L410 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] [2019-12-07 19:06:46,549 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 19:06:46,550 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:46,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:46,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1831086741, now seen corresponding path program 1 times [2019-12-07 19:06:46,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:46,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1433674117] [2019-12-07 19:06:46,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:46,675 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:06:46,677 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:46,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:46,688 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:46,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:46,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1433674117] [2019-12-07 19:06:46,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:46,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:06:46,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205056314] [2019-12-07 19:06:46,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:06:46,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:46,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:06:46,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:06:46,692 INFO L87 Difference]: Start difference. First operand 184 states and 260 transitions. Second operand 5 states. [2019-12-07 19:06:46,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:46,846 INFO L93 Difference]: Finished difference Result 522 states and 741 transitions. [2019-12-07 19:06:46,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 19:06:46,847 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2019-12-07 19:06:46,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:46,850 INFO L225 Difference]: With dead ends: 522 [2019-12-07 19:06:46,850 INFO L226 Difference]: Without dead ends: 520 [2019-12-07 19:06:46,851 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 19:06:46,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2019-12-07 19:06:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 184. [2019-12-07 19:06:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2019-12-07 19:06:46,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 258 transitions. [2019-12-07 19:06:46,869 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 258 transitions. Word has length 26 [2019-12-07 19:06:46,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:46,869 INFO L462 AbstractCegarLoop]: Abstraction has 184 states and 258 transitions. [2019-12-07 19:06:46,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:06:46,870 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 258 transitions. [2019-12-07 19:06:46,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 19:06:46,871 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:46,871 INFO L410 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] [2019-12-07 19:06:47,072 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 19:06:47,073 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:47,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:47,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1549689670, now seen corresponding path program 1 times [2019-12-07 19:06:47,074 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:47,074 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1382498791] [2019-12-07 19:06:47,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:47,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:47,191 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 19:06:47,192 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:47,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:47,203 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:47,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1382498791] [2019-12-07 19:06:47,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:47,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 19:06:47,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740117335] [2019-12-07 19:06:47,207 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 19:06:47,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:47,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 19:06:47,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 19:06:47,208 INFO L87 Difference]: Start difference. First operand 184 states and 258 transitions. Second operand 5 states. [2019-12-07 19:06:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:47,285 INFO L93 Difference]: Finished difference Result 534 states and 740 transitions. [2019-12-07 19:06:47,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 19:06:47,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 19:06:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:47,287 INFO L225 Difference]: With dead ends: 534 [2019-12-07 19:06:47,287 INFO L226 Difference]: Without dead ends: 356 [2019-12-07 19:06:47,288 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 19:06:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2019-12-07 19:06:47,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 202. [2019-12-07 19:06:47,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-12-07 19:06:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 276 transitions. [2019-12-07 19:06:47,299 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 276 transitions. Word has length 32 [2019-12-07 19:06:47,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:47,299 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 276 transitions. [2019-12-07 19:06:47,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 19:06:47,299 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 276 transitions. [2019-12-07 19:06:47,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 19:06:47,300 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:47,300 INFO L410 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] [2019-12-07 19:06:47,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 19:06:47,501 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:47,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:47,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1942716680, now seen corresponding path program 1 times [2019-12-07 19:06:47,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:47,503 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [117390526] [2019-12-07 19:06:47,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:47,639 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 19:06:47,640 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:47,649 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:47,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:47,658 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [117390526] [2019-12-07 19:06:47,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:47,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 19:06:47,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394725669] [2019-12-07 19:06:47,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 19:06:47,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:47,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 19:06:47,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 19:06:47,659 INFO L87 Difference]: Start difference. First operand 202 states and 276 transitions. Second operand 6 states. [2019-12-07 19:06:47,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:47,725 INFO L93 Difference]: Finished difference Result 584 states and 790 transitions. [2019-12-07 19:06:47,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 19:06:47,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 19:06:47,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:47,728 INFO L225 Difference]: With dead ends: 584 [2019-12-07 19:06:47,728 INFO L226 Difference]: Without dead ends: 388 [2019-12-07 19:06:47,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 19:06:47,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2019-12-07 19:06:47,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 214. [2019-12-07 19:06:47,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-12-07 19:06:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 288 transitions. [2019-12-07 19:06:47,741 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 288 transitions. Word has length 32 [2019-12-07 19:06:47,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:47,741 INFO L462 AbstractCegarLoop]: Abstraction has 214 states and 288 transitions. [2019-12-07 19:06:47,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 19:06:47,741 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2019-12-07 19:06:47,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 19:06:47,742 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:47,742 INFO L410 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] [2019-12-07 19:06:47,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 19:06:47,943 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:47,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:47,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1684551242, now seen corresponding path program 1 times [2019-12-07 19:06:47,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:47,945 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141938510] [2019-12-07 19:06:47,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 19:06:48,104 INFO L264 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 19:06:48,106 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 19:06:48,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:48,112 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 19:06:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 19:06:48,121 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141938510] [2019-12-07 19:06:48,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 19:06:48,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 19:06:48,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914197754] [2019-12-07 19:06:48,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 19:06:48,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 19:06:48,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 19:06:48,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:48,122 INFO L87 Difference]: Start difference. First operand 214 states and 288 transitions. Second operand 4 states. [2019-12-07 19:06:48,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 19:06:48,182 INFO L93 Difference]: Finished difference Result 678 states and 916 transitions. [2019-12-07 19:06:48,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 19:06:48,183 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 19:06:48,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 19:06:48,185 INFO L225 Difference]: With dead ends: 678 [2019-12-07 19:06:48,185 INFO L226 Difference]: Without dead ends: 470 [2019-12-07 19:06:48,185 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 19:06:48,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2019-12-07 19:06:48,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 378. [2019-12-07 19:06:48,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-12-07 19:06:48,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 503 transitions. [2019-12-07 19:06:48,206 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 503 transitions. Word has length 32 [2019-12-07 19:06:48,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 19:06:48,206 INFO L462 AbstractCegarLoop]: Abstraction has 378 states and 503 transitions. [2019-12-07 19:06:48,206 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 19:06:48,206 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 503 transitions. [2019-12-07 19:06:48,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 19:06:48,207 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 19:06:48,207 INFO L410 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] [2019-12-07 19:06:48,407 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 19:06:48,408 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 19:06:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 19:06:48,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1539369524, now seen corresponding path program 1 times [2019-12-07 19:06:48,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 19:06:48,408 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469363139] [2019-12-07 19:06:48,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 19:06:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:06:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 19:06:49,527 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 19:06:49,527 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 19:06:49,727 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 19:06:49,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 07:06:49 BoogieIcfgContainer [2019-12-07 19:06:49,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 19:06:49,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 19:06:49,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 19:06:49,828 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 19:06:49,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 07:06:44" (3/4) ... [2019-12-07 19:06:49,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 19:06:49,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fae1438c-4e73-43fb-b1fd-aab2c3738960/bin/utaipan/witness.graphml [2019-12-07 19:06:49,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 19:06:49,899 INFO L168 Benchmark]: Toolchain (without parser) took 6925.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.2 MB). Free memory was 952.4 MB in the beginning and 871.5 MB in the end (delta: 80.9 MB). Peak memory consumption was 279.1 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,899 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 19:06:49,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,900 INFO L168 Benchmark]: Boogie Preprocessor took 50.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,900 INFO L168 Benchmark]: RCFGBuilder took 691.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.0 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,900 INFO L168 Benchmark]: TraceAbstraction took 5634.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 989.0 MB in the beginning and 886.9 MB in the end (delta: 102.2 MB). Peak memory consumption was 186.0 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,900 INFO L168 Benchmark]: Witness Printer took 69.22 ms. Allocated memory is still 1.2 GB. Free memory was 886.9 MB in the beginning and 871.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2019-12-07 19:06:49,902 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -141.0 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 691.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 989.0 MB in the end (delta: 78.8 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5634.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 83.9 MB). Free memory was 989.0 MB in the beginning and 886.9 MB in the end (delta: 102.2 MB). Peak memory consumption was 186.0 MB. Max. memory is 11.5 GB. * Witness Printer took 69.22 ms. Allocated memory is still 1.2 GB. Free memory was 886.9 MB in the beginning and 871.5 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L159] int pumpRunning = 0; [L160] int systemActive = 1; [L399] int waterLevel = 1; [L400] int methaneLevelCritical = 0; [L511] int cleanupTimeShifts = 4; [L802] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int retValue_acc ; [L585] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L591] tmp = valid_product() [L593] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L84] int splverifierCounter ; [L85] int tmp ; [L86] int tmp___0 ; [L87] int tmp___1 ; [L88] int tmp___2 ; [L91] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L93] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L95] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L101] tmp = __VERIFIER_nondet_int() [L103] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L417] COND TRUE waterLevel < 2 [L418] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L111] tmp___0 = __VERIFIER_nondet_int() [L113] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L429] COND FALSE !(\read(methaneLevelCritical)) [L432] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L121] tmp___2 = __VERIFIER_nondet_int() [L123] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L167] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L174] COND TRUE \read(systemActive) [L248] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L251] COND FALSE !(\read(pumpRunning)) [L222] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L225] COND FALSE !(\read(pumpRunning)) [L196] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L199] COND TRUE ! pumpRunning [L345] int retValue_acc ; [L346] int tmp ; [L347] int tmp___0 ; [L479] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L482] COND FALSE !(waterLevel < 2) [L486] retValue_acc = 0 [L487] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L351] tmp = isHighWaterSensorDry() [L353] COND FALSE !(\read(tmp)) [L356] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L358] retValue_acc = tmp___0 [L359] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L201] tmp = isHighWaterLevel() [L203] COND TRUE \read(tmp) [L276] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L608] int tmp ; [L609] int tmp___0 ; [L438] int retValue_acc ; [L441] retValue_acc = methaneLevelCritical [L442] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L613] tmp = isMethaneLevelCritical() [L615] COND TRUE \read(tmp) [L300] int retValue_acc ; [L303] retValue_acc = pumpRunning [L304] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = isPumpRunning() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L506] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 191 locations, 3 error locations. Result: UNSAFE, OverallTime: 5.4s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1206 SDtfs, 1527 SDslu, 1758 SDs, 0 SdLazy, 232 SolverSat, 65 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 1037 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 436 ConstructedInterpolants, 0 QuantifiedInterpolants, 21161 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1688 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...