./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b0e9ceed31cf921db72d6c1708a08263854c92a ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5b0e9ceed31cf921db72d6c1708a08263854c92a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:16,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:16,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:16,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:16,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:16,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:16,800 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:16,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:16,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:16,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:16,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:16,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:16,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:16,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:16,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:16,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:16,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:16,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:16,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:16,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:16,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:16,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:16,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:16,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:16,838 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:16,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:16,842 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:16,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:16,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:16,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:16,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:16,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:16,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:16,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:16,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:16,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:16,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:16,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:16,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:16,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:16,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:16,858 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:05:16,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:16,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:16,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:16,891 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:16,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:16,892 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:16,892 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:05:16,892 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:16,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:16,893 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:05:16,893 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:05:16,893 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:16,893 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:05:16,893 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:05:16,894 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:05:16,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:16,895 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:16,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:05:16,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:16,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:16,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:16,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:16,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:16,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:16,897 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:16,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:16,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:16,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:16,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:16,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:16,898 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:05:16,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:05:16,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:16,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:16,899 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:16,899 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0e9ceed31cf921db72d6c1708a08263854c92a [2020-11-22 13:05:17,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:17,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:17,232 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:17,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:17,236 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:17,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-22 13:05:17,321 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/a0775e6ba/9591a67f22a34337a5a8c0abeaedc815/FLAG9328489ad [2020-11-22 13:05:17,788 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:17,792 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-22 13:05:17,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/a0775e6ba/9591a67f22a34337a5a8c0abeaedc815/FLAG9328489ad [2020-11-22 13:05:18,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/a0775e6ba/9591a67f22a34337a5a8c0abeaedc815 [2020-11-22 13:05:18,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:18,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:18,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:18,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:18,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:18,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:18" (1/1) ... [2020-11-22 13:05:18,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454e724a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:18, skipping insertion in model container [2020-11-22 13:05:18,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:18" (1/1) ... [2020-11-22 13:05:18,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:18,197 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:18,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:18,493 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2020-11-22 13:05:18,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4832fa76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:18, skipping insertion in model container [2020-11-22 13:05:18,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:18,494 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:05:18,496 INFO L168 Benchmark]: Toolchain (without parser) took 382.66 ms. Allocated memory is still 100.7 MB. Free memory was 62.4 MB in the beginning and 73.5 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:18,497 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 79.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:18,497 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.96 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 73.7 MB in the end (delta: -11.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:18,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 79.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.96 ms. Allocated memory is still 100.7 MB. Free memory was 62.2 MB in the beginning and 73.7 MB in the end (delta: -11.5 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: 117]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:05:20,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:05:20,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:05:20,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:05:20,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:05:20,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:05:20,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:05:20,680 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:05:20,683 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:05:20,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:05:20,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:05:20,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:05:20,698 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:05:20,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:05:20,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:05:20,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:05:20,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:05:20,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:05:20,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:05:20,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:05:20,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:05:20,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:05:20,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:05:20,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:05:20,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:05:20,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:05:20,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:05:20,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:05:20,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:05:20,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:05:20,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:05:20,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:05:20,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:05:20,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:05:20,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:05:20,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:05:20,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:05:20,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:05:20,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:05:20,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:05:20,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:05:20,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:05:20,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:05:20,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:05:20,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:05:20,788 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:05:20,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:05:20,788 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:05:20,788 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:05:20,788 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:05:20,789 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:05:20,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:05:20,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:05:20,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:05:20,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:05:20,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:05:20,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:05:20,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:05:20,791 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:05:20,791 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:05:20,792 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:05:20,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:05:20,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:05:20,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:05:20,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:05:20,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:05:20,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:05:20,793 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:05:20,793 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:05:20,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:20,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:05:20,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:05:20,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:05:20,795 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:05:20,795 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:05:20,795 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:05:20,795 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:05:20,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:05:20,796 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0e9ceed31cf921db72d6c1708a08263854c92a [2020-11-22 13:05:21,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:05:21,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:05:21,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:05:21,168 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:05:21,168 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:05:21,169 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-22 13:05:21,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/e051e6035/f77cb602625946bcbe7c1d1ee060b47a/FLAG270048c4d [2020-11-22 13:05:21,811 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:05:21,812 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2020-11-22 13:05:21,824 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/e051e6035/f77cb602625946bcbe7c1d1ee060b47a/FLAG270048c4d [2020-11-22 13:05:22,111 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/data/e051e6035/f77cb602625946bcbe7c1d1ee060b47a [2020-11-22 13:05:22,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:05:22,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:05:22,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:22,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:05:22,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:05:22,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b4a9f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22, skipping insertion in model container [2020-11-22 13:05:22,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:05:22,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:22,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:22,520 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:05:22,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:05:22,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:22,618 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:05:22,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:05:22,715 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:05:22,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22 WrapperNode [2020-11-22 13:05:22,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:05:22,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:22,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:05:22,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:05:22,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,788 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:05:22,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:05:22,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:05:22,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:05:22,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... [2020-11-22 13:05:22,864 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:05:22,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:05:22,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:05:22,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:05:22,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:05:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:05:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:05:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:05:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:05:25,325 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:05:25,328 INFO L298 CfgBuilder]: Removed 108 assume(true) statements. [2020-11-22 13:05:25,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:25 BoogieIcfgContainer [2020-11-22 13:05:25,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:05:25,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:05:25,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:05:25,336 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:05:25,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:05:22" (1/3) ... [2020-11-22 13:05:25,337 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abc92e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:25, skipping insertion in model container [2020-11-22 13:05:25,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:05:22" (2/3) ... [2020-11-22 13:05:25,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abc92e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:05:25, skipping insertion in model container [2020-11-22 13:05:25,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:25" (3/3) ... [2020-11-22 13:05:25,340 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2020-11-22 13:05:25,350 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:05:25,355 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:05:25,366 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:05:25,398 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:05:25,398 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:05:25,398 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:05:25,398 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:05:25,398 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:05:25,399 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:05:25,399 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:05:25,399 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:05:25,410 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-11-22 13:05:25,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:05:25,416 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:25,417 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:25,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:25,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:25,422 INFO L82 PathProgramCache]: Analyzing trace with hash 444924915, now seen corresponding path program 1 times [2020-11-22 13:05:25,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:25,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270857889] [2020-11-22 13:05:25,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:25,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:05:25,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:25,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:25,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:25,708 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270857889] [2020-11-22 13:05:25,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:25,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:05:25,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710568564] [2020-11-22 13:05:25,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:05:25,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:25,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:05:25,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:25,728 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-11-22 13:05:25,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:25,752 INFO L93 Difference]: Finished difference Result 159 states and 236 transitions. [2020-11-22 13:05:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:05:25,754 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-11-22 13:05:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:25,763 INFO L225 Difference]: With dead ends: 159 [2020-11-22 13:05:25,764 INFO L226 Difference]: Without dead ends: 77 [2020-11-22 13:05:25,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:05:25,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-22 13:05:25,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-11-22 13:05:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-11-22 13:05:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2020-11-22 13:05:25,803 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2020-11-22 13:05:25,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:25,804 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2020-11-22 13:05:25,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:05:25,804 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2020-11-22 13:05:25,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:05:25,805 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:25,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:26,025 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:05:26,026 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:26,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:26,027 INFO L82 PathProgramCache]: Analyzing trace with hash -466105838, now seen corresponding path program 1 times [2020-11-22 13:05:26,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:26,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569279855] [2020-11-22 13:05:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:26,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:26,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:26,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:26,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:26,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:26,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:26,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569279855] [2020-11-22 13:05:26,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:26,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:05:26,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606969026] [2020-11-22 13:05:26,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:26,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:26,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:26,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:26,347 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand 4 states. [2020-11-22 13:05:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:26,365 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2020-11-22 13:05:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:26,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-11-22 13:05:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:26,367 INFO L225 Difference]: With dead ends: 77 [2020-11-22 13:05:26,367 INFO L226 Difference]: Without dead ends: 35 [2020-11-22 13:05:26,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:26,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-22 13:05:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-22 13:05:26,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-22 13:05:26,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2020-11-22 13:05:26,373 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2020-11-22 13:05:26,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:26,373 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2020-11-22 13:05:26,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:26,374 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2020-11-22 13:05:26,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:05:26,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:26,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:26,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:05:26,591 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:26,592 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2020-11-22 13:05:26,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:26,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394578525] [2020-11-22 13:05:26,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:26,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:05:26,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:26,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:26,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394578525] [2020-11-22 13:05:26,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:26,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:05:26,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395669222] [2020-11-22 13:05:26,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:05:26,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:26,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:05:26,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:26,829 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand 4 states. [2020-11-22 13:05:26,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:26,847 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2020-11-22 13:05:26,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:05:26,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2020-11-22 13:05:26,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:26,851 INFO L225 Difference]: With dead ends: 64 [2020-11-22 13:05:26,851 INFO L226 Difference]: Without dead ends: 35 [2020-11-22 13:05:26,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:05:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-22 13:05:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-22 13:05:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-22 13:05:26,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2020-11-22 13:05:26,859 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2020-11-22 13:05:26,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:26,860 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2020-11-22 13:05:26,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:05:26,860 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2020-11-22 13:05:26,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:05:26,863 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:26,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:05:27,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:05:27,076 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,077 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2020-11-22 13:05:27,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:27,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587022612] [2020-11-22 13:05:27,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:05:27,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:05:27,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:05:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:27,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:05:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:05:27,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587022612] [2020-11-22 13:05:27,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:05:27,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-22 13:05:27,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571499230] [2020-11-22 13:05:27,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:05:27,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:05:27,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:05:27,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:05:27,337 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand 8 states. [2020-11-22 13:05:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:05:27,721 INFO L93 Difference]: Finished difference Result 340 states and 509 transitions. [2020-11-22 13:05:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:05:27,722 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2020-11-22 13:05:27,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:05:27,725 INFO L225 Difference]: With dead ends: 340 [2020-11-22 13:05:27,725 INFO L226 Difference]: Without dead ends: 311 [2020-11-22 13:05:27,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:05:27,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2020-11-22 13:05:27,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 84. [2020-11-22 13:05:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-11-22 13:05:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2020-11-22 13:05:27,754 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 25 [2020-11-22 13:05:27,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:05:27,754 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2020-11-22 13:05:27,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:05:27,754 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2020-11-22 13:05:27,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-22 13:05:27,755 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:05:27,756 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] [2020-11-22 13:05:27,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:05:27,969 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:05:27,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:05:27,970 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2020-11-22 13:05:27,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:05:27,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [551618160] [2020-11-22 13:05:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:05:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:29,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:05:30,608 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:05:30,754 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:05:30,754 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:05:30,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:05:31,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:05:31 BoogieIcfgContainer [2020-11-22 13:05:31,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:05:31,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:05:31,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:05:31,104 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:05:31,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:05:25" (3/4) ... [2020-11-22 13:05:31,110 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:05:31,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_69160a62-a667-4cf0-ae9d-77eb16bc9d2a/bin/utaipan/witness.graphml [2020-11-22 13:05:31,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:05:31,224 INFO L168 Benchmark]: Toolchain (without parser) took 9108.37 ms. Allocated memory was 75.5 MB in the beginning and 113.2 MB in the end (delta: 37.7 MB). Free memory was 51.4 MB in the beginning and 66.1 MB in the end (delta: -14.7 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,227 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:05:31,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 598.60 ms. Allocated memory is still 75.5 MB. Free memory was 51.1 MB in the beginning and 42.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 38.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,230 INFO L168 Benchmark]: Boogie Preprocessor took 87.16 ms. Allocated memory is still 75.5 MB. Free memory was 38.8 MB in the beginning and 56.4 MB in the end (delta: -17.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,231 INFO L168 Benchmark]: RCFGBuilder took 2454.03 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 61.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,235 INFO L168 Benchmark]: TraceAbstraction took 5769.69 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 76.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,235 INFO L168 Benchmark]: Witness Printer took 118.82 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 66.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:05:31,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 54.5 MB. Free memory was 35.6 MB in the beginning and 35.6 MB in the end (delta: 35.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 598.60 ms. Allocated memory is still 75.5 MB. Free memory was 51.1 MB in the beginning and 42.0 MB in the end (delta: 9.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 75.5 MB. Free memory was 41.8 MB in the beginning and 38.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.16 ms. Allocated memory is still 75.5 MB. Free memory was 38.8 MB in the beginning and 56.4 MB in the end (delta: -17.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2454.03 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 56.4 MB in the beginning and 61.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5769.69 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 60.8 MB in the beginning and 76.6 MB in the end (delta: -15.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. * Witness Printer took 118.82 ms. Allocated memory is still 113.2 MB. Free memory was 76.6 MB in the beginning and 66.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L258] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L460] int waterLevel = 1; [L461] int methaneLevelCritical = 0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L663] int retValue_acc ; [L664] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L578] int retValue_acc ; [L581] retValue_acc = 1 [L582] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int splverifierCounter ; [L860] int tmp ; [L861] int tmp___0 ; [L862] int tmp___1 ; [L863] int tmp___2 ; [L866] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] tmp = __VERIFIER_nondet_int() [L878] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] COND TRUE waterLevel < 2 [L479] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] tmp___0 = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L896] tmp___2 = __VERIFIER_nondet_int() [L898] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] COND TRUE \read(systemActive) [L724] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L499] int retValue_acc ; [L502] retValue_acc = methaneLevelCritical [L503] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L531] int retValue_acc ; [L534] retValue_acc = waterLevel [L535] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L794] int retValue_acc ; [L797] retValue_acc = pumpRunning [L798] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec3_product25.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 283 SDtfs, 683 SDslu, 413 SDs, 0 SdLazy, 93 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 227 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 6 NumberOfNonLiveVariables, 790 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...