./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.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_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 ............................................................................................................................................ 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_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:02:00,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:02:00,764 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:02:00,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:02:00,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:02:00,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:02:00,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:02:00,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:02:00,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:02:00,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:02:00,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:02:00,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:02:00,815 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:02:00,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:02:00,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:02:00,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:02:00,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:02:00,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:02:00,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:02:00,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:02:00,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:02:00,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:02:00,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:02:00,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:02:00,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:02:00,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:02:00,836 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:02:00,837 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:02:00,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:02:00,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:02:00,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:02:00,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:02:00,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:02:00,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:02:00,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:02:00,844 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:02:00,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:02:00,845 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:02:00,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:02:00,846 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:02:00,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:02:00,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:02:00,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:02:00,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:02:00,874 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:02:00,874 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:02:00,875 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:02:00,875 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:02:00,875 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:02:00,875 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:02:00,876 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:02:00,876 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:02:00,876 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:02:00,877 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:02:00,877 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:02:00,877 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:02:00,877 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:02:00,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:02:00,879 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:02:00,879 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:02:00,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:02:00,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:02:00,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:02:00,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:02:00,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:02:00,880 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:02:00,880 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:02:00,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:02:00,881 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:02:00,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:02:00,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:02:00,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:02:00,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:02:00,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:02:00,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:02:00,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:02:00,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:02:00,883 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:02:00,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:02:00,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:02:00,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:02:00,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:02:00,884 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_c30f0242-6894-4532-b1c9-775da6d34fa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 [2020-11-22 13:02:01,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:02:01,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:02:01,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:02:01,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:02:01,192 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:02:01,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-22 13:02:01,257 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/2c73780a3/28eb6d03b1ad40bfb0f1c07a9f186309/FLAGf46c53de5 [2020-11-22 13:02:01,693 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:02:01,694 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-22 13:02:01,709 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/2c73780a3/28eb6d03b1ad40bfb0f1c07a9f186309/FLAGf46c53de5 [2020-11-22 13:02:02,048 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/2c73780a3/28eb6d03b1ad40bfb0f1c07a9f186309 [2020-11-22 13:02:02,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:02:02,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:02:02,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:02,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:02:02,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:02:02,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:02" (1/1) ... [2020-11-22 13:02:02,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240af1df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:02, skipping insertion in model container [2020-11-22 13:02:02,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:02" (1/1) ... [2020-11-22 13:02:02,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:02:02,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:02,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:02,505 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 13:02:02,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35819fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:02, skipping insertion in model container [2020-11-22 13:02:02,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:02,507 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2020-11-22 13:02:02,510 INFO L168 Benchmark]: Toolchain (without parser) took 456.85 ms. Allocated memory is still 96.5 MB. Free memory was 59.6 MB in the beginning and 70.7 MB in the end (delta: -11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:02,511 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 96.5 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:02:02,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 451.01 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 70.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:02,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 96.5 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 451.01 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 70.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 203]: 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 13:02:04,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:02:04,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:02:04,625 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:02:04,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:02:04,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:02:04,633 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:02:04,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:02:04,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:02:04,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:02:04,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:02:04,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:02:04,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:02:04,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:02:04,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:02:04,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:02:04,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:02:04,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:02:04,671 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:02:04,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:02:04,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:02:04,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:02:04,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:02:04,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:02:04,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:02:04,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:02:04,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:02:04,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:02:04,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:02:04,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:02:04,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:02:04,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:02:04,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:02:04,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:02:04,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:02:04,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:02:04,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:02:04,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:02:04,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:02:04,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:02:04,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:02:04,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:02:04,739 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:02:04,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:02:04,740 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:02:04,741 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:02:04,741 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:02:04,741 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:02:04,741 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:02:04,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:02:04,742 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:02:04,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:02:04,742 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:02:04,743 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:02:04,743 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:02:04,743 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:02:04,743 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:02:04,743 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:02:04,744 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:02:04,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:02:04,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:02:04,745 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:02:04,745 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:02:04,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:02:04,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:02:04,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:02:04,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:02:04,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:02:04,746 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:02:04,747 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:02:04,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:02:04,747 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:02:04,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:02:04,747 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_c30f0242-6894-4532-b1c9-775da6d34fa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51759f83c5c8a18147c4d3cfcc22a931ec36cde5 [2020-11-22 13:02:05,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:02:05,133 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:02:05,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:02:05,139 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:02:05,141 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:02:05,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-22 13:02:05,210 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/011278a77/22babb7dcb074ee1b69b327934f0a80c/FLAG56aff11f6 [2020-11-22 13:02:05,757 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:02:05,758 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2020-11-22 13:02:05,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/011278a77/22babb7dcb074ee1b69b327934f0a80c/FLAG56aff11f6 [2020-11-22 13:02:06,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/data/011278a77/22babb7dcb074ee1b69b327934f0a80c [2020-11-22 13:02:06,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:02:06,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:02:06,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:06,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:02:06,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:02:06,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219d6fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06, skipping insertion in model container [2020-11-22 13:02:06,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:02:06,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:06,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:06,534 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2020-11-22 13:02:06,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:02:06,632 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:06,646 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:02:06,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:02:06,767 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:02:06,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06 WrapperNode [2020-11-22 13:02:06,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:02:06,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:02:06,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:02:06,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:02:06,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,797 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:02:06,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:02:06,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:02:06,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:02:06,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,925 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... [2020-11-22 13:02:06,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:02:06,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:02:06,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:02:06,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:02:06,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:07,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:02:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:02:07,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:02:07,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:02:09,524 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:02:09,524 INFO L298 CfgBuilder]: Removed 162 assume(true) statements. [2020-11-22 13:02:09,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:09 BoogieIcfgContainer [2020-11-22 13:02:09,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:02:09,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:02:09,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:02:09,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:02:09,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:02:06" (1/3) ... [2020-11-22 13:02:09,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29121e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:02:09, skipping insertion in model container [2020-11-22 13:02:09,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:02:06" (2/3) ... [2020-11-22 13:02:09,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29121e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:02:09, skipping insertion in model container [2020-11-22 13:02:09,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:09" (3/3) ... [2020-11-22 13:02:09,533 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2020-11-22 13:02:09,550 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:02:09,555 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-22 13:02:09,564 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 13:02:09,588 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:02:09,588 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:02:09,588 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:02:09,600 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:02:09,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:02:09,600 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:02:09,600 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:02:09,600 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:02:09,623 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2020-11-22 13:02:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:02:09,629 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:09,630 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:09,631 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:09,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:09,637 INFO L82 PathProgramCache]: Analyzing trace with hash -948451738, now seen corresponding path program 1 times [2020-11-22 13:02:09,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:09,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1006261612] [2020-11-22 13:02:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:09,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:02:09,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:09,916 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 13:02:09,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:09,921 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 13:02:09,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1006261612] [2020-11-22 13:02:09,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:09,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:02:09,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500711499] [2020-11-22 13:02:09,927 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:02:09,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:09,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:02:09,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:02:09,942 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2020-11-22 13:02:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:09,973 INFO L93 Difference]: Finished difference Result 231 states and 350 transitions. [2020-11-22 13:02:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:02:09,974 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-22 13:02:09,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:09,985 INFO L225 Difference]: With dead ends: 231 [2020-11-22 13:02:09,985 INFO L226 Difference]: Without dead ends: 113 [2020-11-22 13:02:09,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:02:10,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-11-22 13:02:10,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-11-22 13:02:10,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-11-22 13:02:10,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 165 transitions. [2020-11-22 13:02:10,031 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 165 transitions. Word has length 16 [2020-11-22 13:02:10,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:10,031 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 165 transitions. [2020-11-22 13:02:10,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:02:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 165 transitions. [2020-11-22 13:02:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:02:10,033 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:10,033 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:10,238 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:02:10,238 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:10,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:10,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1995208635, now seen corresponding path program 1 times [2020-11-22 13:02:10,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:10,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1850136385] [2020-11-22 13:02:10,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:10,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:10,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:10,495 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 13:02:10,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:10,505 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 13:02:10,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1850136385] [2020-11-22 13:02:10,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:10,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:02:10,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929036695] [2020-11-22 13:02:10,507 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:10,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:10,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:10,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:10,508 INFO L87 Difference]: Start difference. First operand 113 states and 165 transitions. Second operand 4 states. [2020-11-22 13:02:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:10,524 INFO L93 Difference]: Finished difference Result 113 states and 165 transitions. [2020-11-22 13:02:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:02:10,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:02:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:10,526 INFO L225 Difference]: With dead ends: 113 [2020-11-22 13:02:10,526 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:02:10,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:10,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:02:10,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:02:10,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:02:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2020-11-22 13:02:10,537 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2020-11-22 13:02:10,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:10,539 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2020-11-22 13:02:10,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:10,540 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2020-11-22 13:02:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:02:10,542 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:10,542 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] [2020-11-22 13:02:10,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:02:10,762 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:10,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:10,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1404483435, now seen corresponding path program 1 times [2020-11-22 13:02:10,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:10,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213261213] [2020-11-22 13:02:10,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:10,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:10,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:10,969 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 13:02:10,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:10,978 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 13:02:10,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213261213] [2020-11-22 13:02:10,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:10,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:02:10,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314308108] [2020-11-22 13:02:10,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:10,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:10,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:10,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:10,981 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 4 states. [2020-11-22 13:02:10,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:10,998 INFO L93 Difference]: Finished difference Result 88 states and 130 transitions. [2020-11-22 13:02:11,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:02:11,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-22 13:02:11,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:11,003 INFO L225 Difference]: With dead ends: 88 [2020-11-22 13:02:11,003 INFO L226 Difference]: Without dead ends: 47 [2020-11-22 13:02:11,004 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:11,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-22 13:02:11,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-11-22 13:02:11,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-11-22 13:02:11,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2020-11-22 13:02:11,010 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 22 [2020-11-22 13:02:11,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:11,010 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2020-11-22 13:02:11,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:11,010 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2020-11-22 13:02:11,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:02:11,011 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:11,011 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 13:02:11,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:02:11,212 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:11,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:11,213 INFO L82 PathProgramCache]: Analyzing trace with hash -764351347, now seen corresponding path program 1 times [2020-11-22 13:02:11,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:11,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [734846318] [2020-11-22 13:02:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:11,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:11,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:11,429 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 13:02:11,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:11,432 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 13:02:11,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [734846318] [2020-11-22 13:02:11,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:11,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-11-22 13:02:11,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460991068] [2020-11-22 13:02:11,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:02:11,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:11,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:02:11,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:02:11,437 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand 3 states. [2020-11-22 13:02:11,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:11,514 INFO L93 Difference]: Finished difference Result 109 states and 158 transitions. [2020-11-22 13:02:11,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:02:11,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-22 13:02:11,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:11,515 INFO L225 Difference]: With dead ends: 109 [2020-11-22 13:02:11,515 INFO L226 Difference]: Without dead ends: 68 [2020-11-22 13:02:11,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:02:11,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-22 13:02:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-11-22 13:02:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-11-22 13:02:11,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2020-11-22 13:02:11,524 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 24 [2020-11-22 13:02:11,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:11,524 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2020-11-22 13:02:11,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:02:11,524 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2020-11-22 13:02:11,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:02:11,525 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:11,525 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] [2020-11-22 13:02:11,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:02:11,741 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:11,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:11,742 INFO L82 PathProgramCache]: Analyzing trace with hash -805303330, now seen corresponding path program 1 times [2020-11-22 13:02:11,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:11,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774191802] [2020-11-22 13:02:11,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/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 13:02:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:11,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:11,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:11,973 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 13:02:11,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:11,998 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 13:02:11,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774191802] [2020-11-22 13:02:11,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:11,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:02:11,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899144184] [2020-11-22 13:02:11,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:11,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:12,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:12,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:12,000 INFO L87 Difference]: Start difference. First operand 66 states and 93 transitions. Second operand 5 states. [2020-11-22 13:02:12,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:12,118 INFO L93 Difference]: Finished difference Result 175 states and 245 transitions. [2020-11-22 13:02:12,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:02:12,119 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:02:12,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:12,120 INFO L225 Difference]: With dead ends: 175 [2020-11-22 13:02:12,120 INFO L226 Difference]: Without dead ends: 115 [2020-11-22 13:02:12,121 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:02:12,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-11-22 13:02:12,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 72. [2020-11-22 13:02:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-11-22 13:02:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 99 transitions. [2020-11-22 13:02:12,137 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 99 transitions. Word has length 30 [2020-11-22 13:02:12,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:12,138 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 99 transitions. [2020-11-22 13:02:12,138 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:12,138 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-11-22 13:02:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:02:12,143 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:12,143 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] [2020-11-22 13:02:12,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:02:12,356 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:12,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:12,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1857207713, now seen corresponding path program 1 times [2020-11-22 13:02:12,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:12,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734890201] [2020-11-22 13:02:12,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:12,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:12,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:12,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:12,604 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 13:02:12,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:12,615 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 13:02:12,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734890201] [2020-11-22 13:02:12,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:12,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-11-22 13:02:12,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830961111] [2020-11-22 13:02:12,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:12,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:12,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:12,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:12,625 INFO L87 Difference]: Start difference. First operand 72 states and 99 transitions. Second operand 5 states. [2020-11-22 13:02:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:12,774 INFO L93 Difference]: Finished difference Result 382 states and 538 transitions. [2020-11-22 13:02:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:02:12,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:02:12,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:12,778 INFO L225 Difference]: With dead ends: 382 [2020-11-22 13:02:12,779 INFO L226 Difference]: Without dead ends: 316 [2020-11-22 13:02:12,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:02:12,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2020-11-22 13:02:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 132. [2020-11-22 13:02:12,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-22 13:02:12,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 181 transitions. [2020-11-22 13:02:12,831 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 181 transitions. Word has length 30 [2020-11-22 13:02:12,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:12,832 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 181 transitions. [2020-11-22 13:02:12,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 181 transitions. [2020-11-22 13:02:12,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:02:12,834 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:12,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:13,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,054 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:13,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1765991081, now seen corresponding path program 1 times [2020-11-22 13:02:13,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:13,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685354589] [2020-11-22 13:02:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:13,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-22 13:02:13,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:13,265 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 13:02:13,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:13,270 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 13:02:13,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685354589] [2020-11-22 13:02:13,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:13,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2020-11-22 13:02:13,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86873127] [2020-11-22 13:02:13,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:02:13,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:13,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:02:13,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:02:13,271 INFO L87 Difference]: Start difference. First operand 132 states and 181 transitions. Second operand 5 states. [2020-11-22 13:02:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:13,490 INFO L93 Difference]: Finished difference Result 378 states and 520 transitions. [2020-11-22 13:02:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:02:13,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-11-22 13:02:13,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:13,494 INFO L225 Difference]: With dead ends: 378 [2020-11-22 13:02:13,494 INFO L226 Difference]: Without dead ends: 376 [2020-11-22 13:02:13,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:02:13,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-11-22 13:02:13,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 132. [2020-11-22 13:02:13,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-22 13:02:13,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 180 transitions. [2020-11-22 13:02:13,524 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 180 transitions. Word has length 31 [2020-11-22 13:02:13,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:13,524 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 180 transitions. [2020-11-22 13:02:13,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:02:13,526 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 180 transitions. [2020-11-22 13:02:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:02:13,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:13,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:13,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,755 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash -526561838, now seen corresponding path program 1 times [2020-11-22 13:02:13,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:13,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267963261] [2020-11-22 13:02:13,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:13,944 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:02:13,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:13,971 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 13:02:13,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:13,987 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 13:02:13,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267963261] [2020-11-22 13:02:13,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:13,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-22 13:02:13,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950904719] [2020-11-22 13:02:13,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:02:13,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:13,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:02:13,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:02:13,989 INFO L87 Difference]: Start difference. First operand 132 states and 180 transitions. Second operand 6 states. [2020-11-22 13:02:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:14,111 INFO L93 Difference]: Finished difference Result 354 states and 478 transitions. [2020-11-22 13:02:14,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:02:14,112 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-11-22 13:02:14,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:14,114 INFO L225 Difference]: With dead ends: 354 [2020-11-22 13:02:14,114 INFO L226 Difference]: Without dead ends: 228 [2020-11-22 13:02:14,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:02:14,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-11-22 13:02:14,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 140. [2020-11-22 13:02:14,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:02:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 188 transitions. [2020-11-22 13:02:14,157 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 188 transitions. Word has length 31 [2020-11-22 13:02:14,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:14,158 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 188 transitions. [2020-11-22 13:02:14,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:02:14,158 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 188 transitions. [2020-11-22 13:02:14,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:02:14,159 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:14,159 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:14,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-22 13:02:14,375 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:14,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:14,375 INFO L82 PathProgramCache]: Analyzing trace with hash -268396400, now seen corresponding path program 1 times [2020-11-22 13:02:14,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:14,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927120584] [2020-11-22 13:02:14,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:02:14,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-22 13:02:14,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:02:14,543 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 13:02:14,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:02:14,555 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 13:02:14,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927120584] [2020-11-22 13:02:14,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:02:14,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-11-22 13:02:14,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077704175] [2020-11-22 13:02:14,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:02:14,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:02:14,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:02:14,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:02:14,556 INFO L87 Difference]: Start difference. First operand 140 states and 188 transitions. Second operand 4 states. [2020-11-22 13:02:14,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:02:14,676 INFO L93 Difference]: Finished difference Result 430 states and 580 transitions. [2020-11-22 13:02:14,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:02:14,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-11-22 13:02:14,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:02:14,679 INFO L225 Difference]: With dead ends: 430 [2020-11-22 13:02:14,679 INFO L226 Difference]: Without dead ends: 296 [2020-11-22 13:02:14,679 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 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 13:02:14,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-22 13:02:14,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 244. [2020-11-22 13:02:14,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-22 13:02:14,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 325 transitions. [2020-11-22 13:02:14,719 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 325 transitions. Word has length 31 [2020-11-22 13:02:14,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:02:14,719 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 325 transitions. [2020-11-22 13:02:14,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:02:14,720 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 325 transitions. [2020-11-22 13:02:14,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:02:14,722 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:02:14,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:02:14,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-11-22 13:02:14,946 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:02:14,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:02:14,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1913811026, now seen corresponding path program 1 times [2020-11-22 13:02:14,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:02:14,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1779514278] [2020-11-22 13:02:14,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-11-22 13:02:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:02:16,542 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:02:18,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:02:18,082 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:02:18,239 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-11-22 13:02:18,239 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:02:18,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-11-22 13:02:18,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:02:18 BoogieIcfgContainer [2020-11-22 13:02:18,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:02:18,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:02:18,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:02:18,614 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:02:18,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:02:09" (3/4) ... [2020-11-22 13:02:18,616 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:02:18,757 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c30f0242-6894-4532-b1c9-775da6d34fa0/bin/utaipan/witness.graphml [2020-11-22 13:02:18,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:02:18,761 INFO L168 Benchmark]: Toolchain (without parser) took 12688.97 ms. Allocated memory was 56.6 MB in the beginning and 100.7 MB in the end (delta: 44.0 MB). Free memory was 35.5 MB in the beginning and 71.8 MB in the end (delta: -36.3 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,761 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:02:18,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 47.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.28 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 43.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,763 INFO L168 Benchmark]: Boogie Preprocessor took 81.68 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 40.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,763 INFO L168 Benchmark]: RCFGBuilder took 2579.53 ms. Allocated memory is still 69.2 MB. Free memory was 40.9 MB in the beginning and 31.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,763 INFO L168 Benchmark]: TraceAbstraction took 9085.62 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 30.9 MB in the beginning and 31.6 MB in the end (delta: -733.2 kB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,766 INFO L168 Benchmark]: Witness Printer took 143.68 ms. Allocated memory is still 100.7 MB. Free memory was 31.6 MB in the beginning and 71.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:02:18,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 38.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 696.95 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 47.2 MB in the end (delta: -11.9 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.28 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 43.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.68 ms. Allocated memory is still 69.2 MB. Free memory was 43.5 MB in the beginning and 40.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2579.53 ms. Allocated memory is still 69.2 MB. Free memory was 40.9 MB in the beginning and 31.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9085.62 ms. Allocated memory was 69.2 MB in the beginning and 100.7 MB in the end (delta: 31.5 MB). Free memory was 30.9 MB in the beginning and 31.6 MB in the end (delta: -733.2 kB). Peak memory consumption was 29.9 MB. Max. memory is 16.1 GB. * Witness Printer took 143.68 ms. Allocated memory is still 100.7 MB. Free memory was 31.6 MB in the beginning and 71.8 MB in the end (delta: -40.1 MB). Peak memory consumption was 9.1 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: [L71] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L547] int pumpRunning = 0; [L548] int systemActive = 1; [L845] int waterLevel = 1; [L846] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L152] int retValue_acc ; [L153] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L835] int retValue_acc ; [L838] retValue_acc = 1 [L839] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L754] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] COND TRUE waterLevel < 2 [L864] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] COND FALSE !(\read(methaneLevelCritical)) [L878] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L554] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND TRUE \read(systemActive) [L609] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND FALSE !(\read(pumpRunning)) [L583] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND TRUE ! pumpRunning [L706] int retValue_acc ; [L707] int tmp ; [L708] int tmp___0 ; [L925] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L928] COND FALSE !(waterLevel < 2) [L932] retValue_acc = 0 [L933] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L712] tmp = isHighWaterSensorDry() [L714] COND FALSE !(\read(tmp)) [L717] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L719] retValue_acc = tmp___0 [L720] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L588] tmp = isHighWaterLevel() [L590] COND TRUE \read(tmp) [L637] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L46] int tmp ; [L47] int tmp___0 ; [L884] int retValue_acc ; [L887] retValue_acc = methaneLevelCritical [L888] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND TRUE \read(tmp) [L661] int retValue_acc ; [L664] retValue_acc = pumpRunning [L665] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L55] tmp___0 = isPumpRunning() [L57] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L3] __assert_fail("0", "minepump_spec1_product49.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 8.8s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 847 SDtfs, 1063 SDslu, 1255 SDs, 0 SdLazy, 161 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 613 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 23099 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1824 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...