./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 858ae6ce02a6182d965089435301193a306a5587 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 858ae6ce02a6182d965089435301193a306a5587 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:56,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:56,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:56,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:56,827 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:56,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:56,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:56,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:56,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:56,837 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:56,838 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:56,840 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:56,840 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:56,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:56,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:56,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:56,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:56,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:56,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:56,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:56,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:56,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:56,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:56,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:56,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:56,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:56,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:56,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:56,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:56,865 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:56,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:56,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:56,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:56,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:56,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:56,870 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:56,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:56,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:56,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:56,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:56,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:56,875 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:56,900 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:56,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:56,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:56,901 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:56,902 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:56,902 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:56,902 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:56,902 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:56,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:56,903 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:56,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:56,903 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:56,903 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:56,903 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:56,904 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:56,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:56,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:56,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:56,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:56,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:56,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:56,906 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:56,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:56,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:56,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:56,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:56,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:56,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:56,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:56,908 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:56,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:56,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:56,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:56,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:56,909 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2021-10-11 02:31:57,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:57,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:57,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:57,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:57,251 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:57,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-11 02:31:57,357 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/6a69b2f5b/10a64da635344c32a336cea028bf3247/FLAG7d030f5ec [2021-10-11 02:31:58,010 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:58,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-11 02:31:58,049 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/6a69b2f5b/10a64da635344c32a336cea028bf3247/FLAG7d030f5ec [2021-10-11 02:31:58,316 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/6a69b2f5b/10a64da635344c32a336cea028bf3247 [2021-10-11 02:31:58,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:58,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:58,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:58,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:58,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:58,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:58" (1/1) ... [2021-10-11 02:31:58,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:58, skipping insertion in model container [2021-10-11 02:31:58,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:58" (1/1) ... [2021-10-11 02:31:58,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:58,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:58,693 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-11 02:31:58,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:58,738 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:31:58,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1447082c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:58, skipping insertion in model container [2021-10-11 02:31:58,740 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:58,740 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:31:58,743 INFO L168 Benchmark]: Toolchain (without parser) took 420.74 ms. Allocated memory is still 138.4 MB. Free memory was 105.7 MB in the beginning and 112.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:58,745 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 41.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:58,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.19 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 112.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:58,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 90.2 MB. Free memory was 47.1 MB in the beginning and 47.1 MB in the end (delta: 41.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 411.19 ms. Allocated memory is still 138.4 MB. Free memory was 105.4 MB in the beginning and 112.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 70]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:01,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:01,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:01,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:01,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:01,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:01,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:01,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:01,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:01,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:01,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:01,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:01,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:01,192 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:01,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:01,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:01,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:01,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:01,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:01,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:01,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:01,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:01,218 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:01,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:01,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:01,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:01,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:01,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:01,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:01,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:01,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:01,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:01,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:01,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:01,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:01,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:01,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:01,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:01,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:01,244 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:01,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:01,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:01,287 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:01,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:01,289 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:01,289 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:01,289 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:01,289 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:01,289 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:01,290 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:01,290 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:01,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:01,292 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:01,293 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:01,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:01,295 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:01,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:01,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:01,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:01,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:01,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:01,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:01,296 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:01,296 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:01,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:01,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:01,297 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:01,297 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 858ae6ce02a6182d965089435301193a306a5587 [2021-10-11 02:32:01,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:01,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:01,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:01,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:01,753 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:01,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-11 02:32:01,832 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/9899a6260/d027920ec69348f6ba25a849dc50da5b/FLAGb0e058828 [2021-10-11 02:32:02,441 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:02,442 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2021-10-11 02:32:02,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/9899a6260/d027920ec69348f6ba25a849dc50da5b/FLAGb0e058828 [2021-10-11 02:32:02,704 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/data/9899a6260/d027920ec69348f6ba25a849dc50da5b [2021-10-11 02:32:02,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:02,708 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:02,709 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:02,709 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:02,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:02,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:02" (1/1) ... [2021-10-11 02:32:02,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1966a49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:02, skipping insertion in model container [2021-10-11 02:32:02,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:02" (1/1) ... [2021-10-11 02:32:02,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:02,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:03,081 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-11 02:32:03,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:03,120 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:32:03,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:03,206 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-11 02:32:03,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:03,222 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:03,283 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15445,15458] [2021-10-11 02:32:03,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:03,344 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:03,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03 WrapperNode [2021-10-11 02:32:03,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:03,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:03,348 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:03,348 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:03,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:03,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:03,424 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:03,424 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:03,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... [2021-10-11 02:32:03,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:03,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:03,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:03,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:03,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:03,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:03,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:06,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:06,186 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-11 02:32:06,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:06 BoogieIcfgContainer [2021-10-11 02:32:06,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:06,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:06,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:06,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:06,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:02" (1/3) ... [2021-10-11 02:32:06,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcfa3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:06, skipping insertion in model container [2021-10-11 02:32:06,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:03" (2/3) ... [2021-10-11 02:32:06,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcfa3f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:06, skipping insertion in model container [2021-10-11 02:32:06,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:06" (3/3) ... [2021-10-11 02:32:06,196 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2021-10-11 02:32:06,210 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:06,214 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:32:06,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:32:06,251 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:06,251 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:06,251 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:06,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:06,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:06,252 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:06,252 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:06,252 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:06,267 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2021-10-11 02:32:06,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:32:06,274 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:06,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:06,275 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:06,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:06,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2021-10-11 02:32:06,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:06,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [276750449] [2021-10-11 02:32:06,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:06,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:32:06,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:06,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:06,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:06,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [276750449] [2021-10-11 02:32:06,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:06,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:06,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274646877] [2021-10-11 02:32:06,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:06,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:06,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:06,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:06,653 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2021-10-11 02:32:06,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:06,694 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2021-10-11 02:32:06,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:06,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 02:32:06,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:06,708 INFO L225 Difference]: With dead ends: 161 [2021-10-11 02:32:06,708 INFO L226 Difference]: Without dead ends: 80 [2021-10-11 02:32:06,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-11 02:32:06,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-11 02:32:06,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2021-10-11 02:32:06,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2021-10-11 02:32:06,753 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2021-10-11 02:32:06,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:06,754 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2021-10-11 02:32:06,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:06,754 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2021-10-11 02:32:06,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:32:06,755 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:06,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:06,956 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:06,956 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:06,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:06,957 INFO L82 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2021-10-11 02:32:06,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:06,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080276612] [2021-10-11 02:32:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:07,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:07,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:07,233 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:07,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080276612] [2021-10-11 02:32:07,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:07,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:07,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285830502] [2021-10-11 02:32:07,236 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:07,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:07,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:07,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,239 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2021-10-11 02:32:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:07,260 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2021-10-11 02:32:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:07,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:32:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:07,262 INFO L225 Difference]: With dead ends: 80 [2021-10-11 02:32:07,263 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 02:32:07,264 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 02:32:07,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-10-11 02:32:07,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-11 02:32:07,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2021-10-11 02:32:07,278 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2021-10-11 02:32:07,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:07,280 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2021-10-11 02:32:07,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:07,281 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2021-10-11 02:32:07,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:32:07,284 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:07,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:07,500 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,501 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:07,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:07,501 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2021-10-11 02:32:07,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:07,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694582123] [2021-10-11 02:32:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:07,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:07,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:07,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:07,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:07,716 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694582123] [2021-10-11 02:32:07,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:07,717 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:07,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692370584] [2021-10-11 02:32:07,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:07,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:07,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:07,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,718 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2021-10-11 02:32:07,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:07,735 INFO L93 Difference]: Finished difference Result 100 states and 148 transitions. [2021-10-11 02:32:07,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:07,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:32:07,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:07,745 INFO L225 Difference]: With dead ends: 100 [2021-10-11 02:32:07,745 INFO L226 Difference]: Without dead ends: 69 [2021-10-11 02:32:07,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-10-11 02:32:07,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2021-10-11 02:32:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2021-10-11 02:32:07,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2021-10-11 02:32:07,778 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 24 [2021-10-11 02:32:07,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:07,779 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2021-10-11 02:32:07,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2021-10-11 02:32:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:07,782 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:07,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:07,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:32:07,993 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:07,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:07,993 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2021-10-11 02:32:07,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:07,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649501723] [2021-10-11 02:32:07,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:08,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:08,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:08,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:08,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649501723] [2021-10-11 02:32:08,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:08,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:08,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724540808] [2021-10-11 02:32:08,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:08,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:08,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:08,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:08,214 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand 3 states. [2021-10-11 02:32:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:08,270 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2021-10-11 02:32:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:08,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:32:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:08,272 INFO L225 Difference]: With dead ends: 166 [2021-10-11 02:32:08,272 INFO L226 Difference]: Without dead ends: 108 [2021-10-11 02:32:08,273 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-11 02:32:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2021-10-11 02:32:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:32:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 156 transitions. [2021-10-11 02:32:08,288 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 156 transitions. Word has length 25 [2021-10-11 02:32:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:08,289 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 156 transitions. [2021-10-11 02:32:08,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 156 transitions. [2021-10-11 02:32:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:32:08,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:08,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:08,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,509 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:08,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:08,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2021-10-11 02:32:08,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:08,510 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246176519] [2021-10-11 02:32:08,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:08,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:08,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:08,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:08,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:08,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246176519] [2021-10-11 02:32:08,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:08,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:08,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473057901] [2021-10-11 02:32:08,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:08,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:08,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:08,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:08,773 INFO L87 Difference]: Start difference. First operand 106 states and 156 transitions. Second operand 5 states. [2021-10-11 02:32:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:08,907 INFO L93 Difference]: Finished difference Result 510 states and 765 transitions. [2021-10-11 02:32:08,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:32:08,908 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2021-10-11 02:32:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:08,915 INFO L225 Difference]: With dead ends: 510 [2021-10-11 02:32:08,915 INFO L226 Difference]: Without dead ends: 411 [2021-10-11 02:32:08,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-10-11 02:32:08,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 191. [2021-10-11 02:32:08,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2021-10-11 02:32:08,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 276 transitions. [2021-10-11 02:32:08,984 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 276 transitions. Word has length 27 [2021-10-11 02:32:08,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:08,985 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 276 transitions. [2021-10-11 02:32:08,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:08,986 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 276 transitions. [2021-10-11 02:32:08,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 02:32:08,990 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:08,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:09,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:32:09,202 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:09,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:09,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2021-10-11 02:32:09,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:09,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339961893] [2021-10-11 02:32:09,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:09,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:09,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:09,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:09,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:09,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:09,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339961893] [2021-10-11 02:32:09,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:09,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:09,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610818813] [2021-10-11 02:32:09,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:09,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:09,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:09,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:09,481 INFO L87 Difference]: Start difference. First operand 191 states and 276 transitions. Second operand 5 states. [2021-10-11 02:32:09,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:09,682 INFO L93 Difference]: Finished difference Result 709 states and 1031 transitions. [2021-10-11 02:32:09,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:32:09,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2021-10-11 02:32:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:09,686 INFO L225 Difference]: With dead ends: 709 [2021-10-11 02:32:09,687 INFO L226 Difference]: Without dead ends: 525 [2021-10-11 02:32:09,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2021-10-11 02:32:09,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 189. [2021-10-11 02:32:09,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2021-10-11 02:32:09,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 270 transitions. [2021-10-11 02:32:09,713 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 270 transitions. Word has length 28 [2021-10-11 02:32:09,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:09,713 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 270 transitions. [2021-10-11 02:32:09,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:09,714 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 270 transitions. [2021-10-11 02:32:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:32:09,720 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:09,720 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:09,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:32:09,936 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:09,937 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2021-10-11 02:32:09,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:09,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070030952] [2021-10-11 02:32:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:10,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:10,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:10,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:10,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070030952] [2021-10-11 02:32:10,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:10,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:10,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674020110] [2021-10-11 02:32:10,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:10,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:10,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:10,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:10,204 INFO L87 Difference]: Start difference. First operand 189 states and 270 transitions. Second operand 5 states. [2021-10-11 02:32:10,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:10,291 INFO L93 Difference]: Finished difference Result 515 states and 728 transitions. [2021-10-11 02:32:10,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:10,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 02:32:10,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:10,296 INFO L225 Difference]: With dead ends: 515 [2021-10-11 02:32:10,297 INFO L226 Difference]: Without dead ends: 333 [2021-10-11 02:32:10,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-10-11 02:32:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 201. [2021-10-11 02:32:10,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2021-10-11 02:32:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2021-10-11 02:32:10,330 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 32 [2021-10-11 02:32:10,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:10,330 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2021-10-11 02:32:10,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:10,331 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2021-10-11 02:32:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:32:10,332 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:10,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:10,550 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,551 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:10,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:10,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2021-10-11 02:32:10,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:10,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365440970] [2021-10-11 02:32:10,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:10,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:32:10,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:10,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:10,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:10,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365440970] [2021-10-11 02:32:10,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:10,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:10,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220392694] [2021-10-11 02:32:10,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:10,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:10,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:10,795 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand 4 states. [2021-10-11 02:32:10,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:10,847 INFO L93 Difference]: Finished difference Result 491 states and 683 transitions. [2021-10-11 02:32:10,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:10,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 02:32:10,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:10,850 INFO L225 Difference]: With dead ends: 491 [2021-10-11 02:32:10,850 INFO L226 Difference]: Without dead ends: 297 [2021-10-11 02:32:10,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:10,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-10-11 02:32:10,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 209. [2021-10-11 02:32:10,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-10-11 02:32:10,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2021-10-11 02:32:10,872 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 32 [2021-10-11 02:32:10,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:10,873 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2021-10-11 02:32:10,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:10,873 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2021-10-11 02:32:10,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:32:10,874 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:10,874 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:11,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:32:11,091 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:11,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:11,092 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2021-10-11 02:32:11,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:11,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2083549012] [2021-10-11 02:32:11,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:11,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:11,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:11,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:11,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:11,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2083549012] [2021-10-11 02:32:11,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:11,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:11,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118494279] [2021-10-11 02:32:11,322 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:11,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:11,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:11,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:11,323 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand 3 states. [2021-10-11 02:32:11,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:11,369 INFO L93 Difference]: Finished difference Result 511 states and 703 transitions. [2021-10-11 02:32:11,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:11,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 02:32:11,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:11,371 INFO L225 Difference]: With dead ends: 511 [2021-10-11 02:32:11,372 INFO L226 Difference]: Without dead ends: 309 [2021-10-11 02:32:11,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-10-11 02:32:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-10-11 02:32:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2021-10-11 02:32:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2021-10-11 02:32:11,405 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 412 transitions. Word has length 32 [2021-10-11 02:32:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:11,406 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 412 transitions. [2021-10-11 02:32:11,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:11,406 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2021-10-11 02:32:11,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:32:11,407 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:11,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:11,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:32:11,626 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:11,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:11,627 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2021-10-11 02:32:11,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:11,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1342885987] [2021-10-11 02:32:11,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:11,829 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:11,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:11,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:11,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1342885987] [2021-10-11 02:32:11,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:11,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:11,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122430214] [2021-10-11 02:32:11,897 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:11,897 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:11,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:11,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:11,898 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand 3 states. [2021-10-11 02:32:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:11,969 INFO L93 Difference]: Finished difference Result 447 states and 603 transitions. [2021-10-11 02:32:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:11,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-10-11 02:32:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:11,973 INFO L225 Difference]: With dead ends: 447 [2021-10-11 02:32:11,973 INFO L226 Difference]: Without dead ends: 445 [2021-10-11 02:32:11,974 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:11,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-10-11 02:32:12,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 370. [2021-10-11 02:32:12,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2021-10-11 02:32:12,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 504 transitions. [2021-10-11 02:32:12,011 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 504 transitions. Word has length 33 [2021-10-11 02:32:12,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:12,012 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 504 transitions. [2021-10-11 02:32:12,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:12,012 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 504 transitions. [2021-10-11 02:32:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 02:32:12,013 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:12,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:12,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:32:12,234 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:12,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:12,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2021-10-11 02:32:12,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:12,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123380737] [2021-10-11 02:32:12,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:13,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:15,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:15,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:15,737 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:32:15,738 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:15,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:32:16,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:16 BoogieIcfgContainer [2021-10-11 02:32:16,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:16,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:16,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:16,085 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:16,086 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:06" (3/4) ... [2021-10-11 02:32:16,089 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:16,280 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ab87bf9-8608-4133-b811-aec27d2d95df/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:16,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:16,282 INFO L168 Benchmark]: Toolchain (without parser) took 13572.97 ms. Allocated memory was 60.8 MB in the beginning and 125.8 MB in the end (delta: 65.0 MB). Free memory was 40.3 MB in the beginning and 97.3 MB in the end (delta: -57.0 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,282 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:16,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.01 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 31.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,283 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 28.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,284 INFO L168 Benchmark]: Boogie Preprocessor took 55.20 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 26.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,284 INFO L168 Benchmark]: RCFGBuilder took 2708.49 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 26.6 MB in the beginning and 59.8 MB in the end (delta: -33.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,285 INFO L168 Benchmark]: TraceAbstraction took 9895.35 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.3 MB in the beginning and 41.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,285 INFO L168 Benchmark]: Witness Printer took 194.91 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 41.7 MB in the beginning and 97.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:16,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory is still 42.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 638.01 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 31.9 MB in the end (delta: 8.2 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.85 ms. Allocated memory is still 60.8 MB. Free memory was 31.9 MB in the beginning and 28.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.20 ms. Allocated memory is still 60.8 MB. Free memory was 28.8 MB in the beginning and 26.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2708.49 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 26.6 MB in the beginning and 59.8 MB in the end (delta: -33.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9895.35 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 59.3 MB in the beginning and 41.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 16.1 GB. * Witness Printer took 194.91 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 41.7 MB in the beginning and 97.3 MB in the end (delta: -55.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] tmp = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] COND FALSE !(\read(methaneLevelCritical)) [L874] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L924] COND FALSE !(waterLevel < 2) [L928] retValue_acc = 0 [L929] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isHighWaterSensorDry() [L560] COND FALSE !(\read(tmp)) [L563] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] tmp = isHighWaterLevel() [L462] COND TRUE \read(tmp) [L483] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L679] COND FALSE !(\read(methAndRunningLastTime)) [L684] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] COND TRUE waterLevel > 0 [L848] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L458] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L679] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L738] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.6s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 712 SDtfs, 732 SDslu, 966 SDs, 0 SdLazy, 112 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 276 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 857 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 14638 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2048 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...