./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5076d679b37839f733750e31fc3798a3b068ae0 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b5076d679b37839f733750e31fc3798a3b068ae0 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:50,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:50,932 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:50,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:50,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:51,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:51,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:51,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:51,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:51,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:51,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:51,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:51,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:51,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:51,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:51,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:51,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:51,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:51,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:51,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:51,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:51,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:51,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:51,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:51,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:51,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:51,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:51,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:51,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:51,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:51,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:51,074 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:51,075 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:51,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:51,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:51,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:51,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:51,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:51,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:51,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:51,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:51,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:51,127 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:51,128 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:51,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:51,129 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:51,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:51,129 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:51,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:51,130 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:51,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:51,130 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:51,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:51,131 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:51,131 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:51,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:51,132 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:51,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:51,133 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:51,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:51,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:51,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:51,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:51,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:51,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:51,135 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:51,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:51,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:51,136 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:51,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:51,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:51,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:51,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:51,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:51,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:51,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:51,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:51,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:51,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:51,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:51,139 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:51,139 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5076d679b37839f733750e31fc3798a3b068ae0 [2021-10-11 02:32:51,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:51,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:51,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:51,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:51,454 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:51,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-11 02:32:51,573 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/736c876b7/f184d79fe9e44adc96e62d060caae7fb/FLAGd775e4575 [2021-10-11 02:32:52,222 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:52,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-11 02:32:52,239 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/736c876b7/f184d79fe9e44adc96e62d060caae7fb/FLAGd775e4575 [2021-10-11 02:32:52,501 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/736c876b7/f184d79fe9e44adc96e62d060caae7fb [2021-10-11 02:32:52,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:52,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:52,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:52,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:52,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:52,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12cb2085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52, skipping insertion in model container [2021-10-11 02:32:52,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:52" (1/1) ... [2021-10-11 02:32:52,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:52,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:52,858 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-10-11 02:32:52,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:52,967 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:32:52,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@452de755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:52, skipping insertion in model container [2021-10-11 02:32:52,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:52,969 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:32:52,972 INFO L168 Benchmark]: Toolchain (without parser) took 462.48 ms. Allocated memory is still 96.5 MB. Free memory was 63.6 MB in the beginning and 70.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,973 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 79.7 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:52,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.04 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 70.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:52,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 79.7 MB. Free memory was 36.4 MB in the beginning and 36.3 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 459.04 ms. Allocated memory is still 96.5 MB. Free memory was 63.4 MB in the beginning and 70.3 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 540]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:55,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:55,732 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:55,769 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:55,770 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:55,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:55,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:55,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:55,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:55,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:55,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:55,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:55,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:55,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:55,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:55,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:55,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:55,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:55,818 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:55,821 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:55,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:55,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:55,827 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:55,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:55,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:55,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:55,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:55,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:55,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:55,838 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:55,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:55,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:55,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:55,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:55,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:55,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:55,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:55,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:55,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:55,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:55,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:55,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:55,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:55,904 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:55,906 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:55,906 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:55,907 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:55,907 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:55,907 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:55,908 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:55,908 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:55,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:55,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:55,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:55,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:55,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:55,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:55,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:55,913 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:55,913 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:55,913 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:55,914 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:55,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:55,914 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:55,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:55,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:55,915 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:55,915 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:55,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:55,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:55,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:55,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:55,917 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:55,917 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:55,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:55,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:55,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:55,918 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5076d679b37839f733750e31fc3798a3b068ae0 [2021-10-11 02:32:56,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:56,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:56,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:56,431 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:56,432 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:56,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-11 02:32:56,520 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/2ad168a89/ea430c1f15c94e428dbfdcb961cc45a4/FLAG5badda6c5 [2021-10-11 02:32:57,320 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:57,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2021-10-11 02:32:57,342 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/2ad168a89/ea430c1f15c94e428dbfdcb961cc45a4/FLAG5badda6c5 [2021-10-11 02:32:57,534 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/data/2ad168a89/ea430c1f15c94e428dbfdcb961cc45a4 [2021-10-11 02:32:57,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:57,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:57,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:57,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:57,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:57,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:57" (1/1) ... [2021-10-11 02:32:57,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7754c2bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:57, skipping insertion in model container [2021-10-11 02:32:57,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:57" (1/1) ... [2021-10-11 02:32:57,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:57,633 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:57,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-10-11 02:32:57,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:57,991 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:32:58,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:58,022 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-10-11 02:32:58,127 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:58,141 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:58,196 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c[4518,4531] [2021-10-11 02:32:58,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:58,338 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:58,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58 WrapperNode [2021-10-11 02:32:58,339 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:58,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:58,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:58,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:58,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:58,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:58,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:58,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:58,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... [2021-10-11 02:32:58,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:58,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:58,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:58,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:58,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:58,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:58,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:58,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:33:01,470 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:33:01,471 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-10-11 02:33:01,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:01 BoogieIcfgContainer [2021-10-11 02:33:01,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:33:01,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:33:01,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:33:01,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:33:01,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:57" (1/3) ... [2021-10-11 02:33:01,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b8896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:01, skipping insertion in model container [2021-10-11 02:33:01,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:58" (2/3) ... [2021-10-11 02:33:01,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@509b8896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:33:01, skipping insertion in model container [2021-10-11 02:33:01,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:01" (3/3) ... [2021-10-11 02:33:01,483 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2021-10-11 02:33:01,503 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:33:01,507 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:33:01,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:33:01,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:33:01,567 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:33:01,567 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:33:01,568 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:33:01,568 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:33:01,568 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:33:01,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:33:01,568 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:33:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2021-10-11 02:33:01,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:33:01,594 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:01,595 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:01,596 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:01,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:01,603 INFO L82 PathProgramCache]: Analyzing trace with hash -816697532, now seen corresponding path program 1 times [2021-10-11 02:33:01,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:01,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169332058] [2021-10-11 02:33:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:01,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:33:01,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:01,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:01,996 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:01,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169332058] [2021-10-11 02:33:01,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:01,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:02,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377779580] [2021-10-11 02:33:02,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:33:02,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:02,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:33:02,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:02,038 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 2 states. [2021-10-11 02:33:02,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:02,091 INFO L93 Difference]: Finished difference Result 157 states and 240 transitions. [2021-10-11 02:33:02,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:33:02,094 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2021-10-11 02:33:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:02,108 INFO L225 Difference]: With dead ends: 157 [2021-10-11 02:33:02,108 INFO L226 Difference]: Without dead ends: 78 [2021-10-11 02:33:02,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:33:02,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-11 02:33:02,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-10-11 02:33:02,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-10-11 02:33:02,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2021-10-11 02:33:02,177 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 18 [2021-10-11 02:33:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:02,178 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2021-10-11 02:33:02,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:33:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2021-10-11 02:33:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:33:02,181 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:02,181 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:02,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,401 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:02,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:02,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1035533501, now seen corresponding path program 1 times [2021-10-11 02:33:02,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:02,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050213010] [2021-10-11 02:33:02,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:02,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:33:02,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:02,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:02,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050213010] [2021-10-11 02:33:02,670 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:02,670 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:33:02,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645490592] [2021-10-11 02:33:02,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:02,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:02,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:02,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:02,674 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 3 states. [2021-10-11 02:33:02,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:02,686 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2021-10-11 02:33:02,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:02,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:33:02,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:02,689 INFO L225 Difference]: With dead ends: 78 [2021-10-11 02:33:02,689 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 02:33:02,690 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:02,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 02:33:02,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 02:33:02,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 02:33:02,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2021-10-11 02:33:02,697 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2021-10-11 02:33:02,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:02,697 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2021-10-11 02:33:02,697 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:02,697 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2021-10-11 02:33:02,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:33:02,699 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:02,699 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:02,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:33:02,921 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:02,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:02,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1153900874, now seen corresponding path program 1 times [2021-10-11 02:33:02,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:02,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1745536345] [2021-10-11 02:33:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:03,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:03,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1745536345] [2021-10-11 02:33:03,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:03,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:03,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390253843] [2021-10-11 02:33:03,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:03,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:03,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:03,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:03,188 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2021-10-11 02:33:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:03,209 INFO L93 Difference]: Finished difference Result 65 states and 95 transitions. [2021-10-11 02:33:03,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:03,210 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:33:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:03,211 INFO L225 Difference]: With dead ends: 65 [2021-10-11 02:33:03,212 INFO L226 Difference]: Without dead ends: 36 [2021-10-11 02:33:03,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:03,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-11 02:33:03,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-11 02:33:03,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2021-10-11 02:33:03,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2021-10-11 02:33:03,224 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2021-10-11 02:33:03,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:03,224 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2021-10-11 02:33:03,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2021-10-11 02:33:03,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:33:03,227 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:03,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:03,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:33:03,445 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:03,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:03,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1264883623, now seen corresponding path program 1 times [2021-10-11 02:33:03,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:03,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108736174] [2021-10-11 02:33:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:03,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:33:03,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:03,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:03,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108736174] [2021-10-11 02:33:03,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:03,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:33:03,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658579495] [2021-10-11 02:33:03,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:03,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:03,763 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2021-10-11 02:33:03,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:03,862 INFO L93 Difference]: Finished difference Result 87 states and 125 transitions. [2021-10-11 02:33:03,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:03,863 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2021-10-11 02:33:03,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:03,867 INFO L225 Difference]: With dead ends: 87 [2021-10-11 02:33:03,867 INFO L226 Difference]: Without dead ends: 58 [2021-10-11 02:33:03,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-11 02:33:03,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2021-10-11 02:33:03,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2021-10-11 02:33:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 79 transitions. [2021-10-11 02:33:03,892 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 79 transitions. Word has length 25 [2021-10-11 02:33:03,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:03,894 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 79 transitions. [2021-10-11 02:33:03,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:03,895 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 79 transitions. [2021-10-11 02:33:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:33:03,897 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:03,897 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] [2021-10-11 02:33:04,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:33:04,111 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:04,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:04,112 INFO L82 PathProgramCache]: Analyzing trace with hash -703728504, now seen corresponding path program 1 times [2021-10-11 02:33:04,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:04,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771404218] [2021-10-11 02:33:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:04,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:04,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:33:04,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:04,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:04,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771404218] [2021-10-11 02:33:04,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:04,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:04,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692380362] [2021-10-11 02:33:04,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:04,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:04,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:04,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:04,414 INFO L87 Difference]: Start difference. First operand 56 states and 79 transitions. Second operand 5 states. [2021-10-11 02:33:04,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:04,510 INFO L93 Difference]: Finished difference Result 145 states and 205 transitions. [2021-10-11 02:33:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:33:04,511 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 02:33:04,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:04,512 INFO L225 Difference]: With dead ends: 145 [2021-10-11 02:33:04,512 INFO L226 Difference]: Without dead ends: 96 [2021-10-11 02:33:04,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:33:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-10-11 02:33:04,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 59. [2021-10-11 02:33:04,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-10-11 02:33:04,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2021-10-11 02:33:04,524 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 31 [2021-10-11 02:33:04,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:04,524 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2021-10-11 02:33:04,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:04,524 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2021-10-11 02:33:04,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:33:04,526 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:04,526 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] [2021-10-11 02:33:04,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:33:04,746 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:04,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:04,747 INFO L82 PathProgramCache]: Analyzing trace with hash 229735205, now seen corresponding path program 1 times [2021-10-11 02:33:04,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:04,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2093983365] [2021-10-11 02:33:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:05,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:33:05,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:05,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:05,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:05,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2093983365] [2021-10-11 02:33:05,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:05,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:05,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178406723] [2021-10-11 02:33:05,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:05,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:05,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:05,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:05,083 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand 5 states. [2021-10-11 02:33:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:05,211 INFO L93 Difference]: Finished difference Result 275 states and 393 transitions. [2021-10-11 02:33:05,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:33:05,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 02:33:05,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:05,214 INFO L225 Difference]: With dead ends: 275 [2021-10-11 02:33:05,215 INFO L226 Difference]: Without dead ends: 223 [2021-10-11 02:33:05,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:05,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-10-11 02:33:05,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 103. [2021-10-11 02:33:05,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2021-10-11 02:33:05,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2021-10-11 02:33:05,244 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 31 [2021-10-11 02:33:05,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:05,245 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2021-10-11 02:33:05,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:05,245 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2021-10-11 02:33:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:33:05,247 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:05,247 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:05,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:33:05,466 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:05,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:05,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1892298141, now seen corresponding path program 1 times [2021-10-11 02:33:05,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:05,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220968660] [2021-10-11 02:33:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:05,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:33:05,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:05,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:05,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:05,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1220968660] [2021-10-11 02:33:05,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:05,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:33:05,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528462513] [2021-10-11 02:33:05,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:33:05,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:05,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:33:05,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:05,793 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand 5 states. [2021-10-11 02:33:05,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:05,991 INFO L93 Difference]: Finished difference Result 376 states and 523 transitions. [2021-10-11 02:33:05,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:33:05,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2021-10-11 02:33:05,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:05,994 INFO L225 Difference]: With dead ends: 376 [2021-10-11 02:33:05,994 INFO L226 Difference]: Without dead ends: 280 [2021-10-11 02:33:05,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:33:05,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-10-11 02:33:06,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 102. [2021-10-11 02:33:06,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:33:06,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-10-11 02:33:06,016 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 32 [2021-10-11 02:33:06,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:06,017 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-10-11 02:33:06,017 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:33:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-10-11 02:33:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:33:06,019 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:06,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:06,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:33:06,235 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1659899010, now seen corresponding path program 1 times [2021-10-11 02:33:06,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:06,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820009588] [2021-10-11 02:33:06,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:06,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:33:06,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:06,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:06,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820009588] [2021-10-11 02:33:06,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:06,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:33:06,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788040470] [2021-10-11 02:33:06,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:33:06,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:06,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:33:06,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:33:06,531 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 4 states. [2021-10-11 02:33:06,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:06,595 INFO L93 Difference]: Finished difference Result 243 states and 331 transitions. [2021-10-11 02:33:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:33:06,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2021-10-11 02:33:06,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:06,598 INFO L225 Difference]: With dead ends: 243 [2021-10-11 02:33:06,601 INFO L226 Difference]: Without dead ends: 148 [2021-10-11 02:33:06,604 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:33:06,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-10-11 02:33:06,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 106. [2021-10-11 02:33:06,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:33:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2021-10-11 02:33:06,630 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 143 transitions. Word has length 32 [2021-10-11 02:33:06,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:06,631 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 143 transitions. [2021-10-11 02:33:06,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:33:06,636 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 143 transitions. [2021-10-11 02:33:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:33:06,640 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:06,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:06,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:33:06,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:06,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:06,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1073092996, now seen corresponding path program 1 times [2021-10-11 02:33:06,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:06,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1743750309] [2021-10-11 02:33:06,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:07,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:33:07,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:07,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:07,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:07,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1743750309] [2021-10-11 02:33:07,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:07,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:33:07,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713031698] [2021-10-11 02:33:07,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:07,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:07,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:07,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:07,142 INFO L87 Difference]: Start difference. First operand 106 states and 143 transitions. Second operand 3 states. [2021-10-11 02:33:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:07,188 INFO L93 Difference]: Finished difference Result 253 states and 341 transitions. [2021-10-11 02:33:07,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:07,188 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2021-10-11 02:33:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:07,190 INFO L225 Difference]: With dead ends: 253 [2021-10-11 02:33:07,190 INFO L226 Difference]: Without dead ends: 154 [2021-10-11 02:33:07,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:07,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-10-11 02:33:07,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-10-11 02:33:07,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-10-11 02:33:07,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2021-10-11 02:33:07,227 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 32 [2021-10-11 02:33:07,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:07,227 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2021-10-11 02:33:07,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:07,228 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2021-10-11 02:33:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:33:07,234 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:07,235 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:07,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:33:07,458 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:07,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:07,459 INFO L82 PathProgramCache]: Analyzing trace with hash -389810492, now seen corresponding path program 1 times [2021-10-11 02:33:07,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:07,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749128493] [2021-10-11 02:33:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:33:07,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:33:07,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:33:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:33:07,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:33:07,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749128493] [2021-10-11 02:33:07,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:33:07,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:33:07,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299689424] [2021-10-11 02:33:07,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:33:07,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:33:07,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:33:07,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:07,765 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2021-10-11 02:33:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:33:07,832 INFO L93 Difference]: Finished difference Result 221 states and 291 transitions. [2021-10-11 02:33:07,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:33:07,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2021-10-11 02:33:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:33:07,835 INFO L225 Difference]: With dead ends: 221 [2021-10-11 02:33:07,835 INFO L226 Difference]: Without dead ends: 219 [2021-10-11 02:33:07,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:33:07,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2021-10-11 02:33:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 183. [2021-10-11 02:33:07,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2021-10-11 02:33:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 244 transitions. [2021-10-11 02:33:07,864 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 244 transitions. Word has length 33 [2021-10-11 02:33:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:33:07,865 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 244 transitions. [2021-10-11 02:33:07,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:33:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 244 transitions. [2021-10-11 02:33:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 02:33:07,866 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:33:07,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:33:08,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:33:08,079 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:33:08,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:33:08,079 INFO L82 PathProgramCache]: Analyzing trace with hash 967205496, now seen corresponding path program 1 times [2021-10-11 02:33:08,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:33:08,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2486243] [2021-10-11 02:33:08,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:33:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:09,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:33:10,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:33:11,156 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:33:11,156 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:33:11,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:33:11,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:33:11 BoogieIcfgContainer [2021-10-11 02:33:11,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:33:11,598 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:33:11,598 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:33:11,598 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:33:11,599 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:33:01" (3/4) ... [2021-10-11 02:33:11,600 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:33:11,737 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab7d36cc-a71e-4b25-9c8f-9649a2d80df4/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:33:11,737 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:33:11,739 INFO L168 Benchmark]: Toolchain (without parser) took 14199.60 ms. Allocated memory was 73.4 MB in the beginning and 113.2 MB in the end (delta: 39.8 MB). Free memory was 53.5 MB in the beginning and 44.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 46.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,739 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:33:11,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.09 ms. Allocated memory is still 73.4 MB. Free memory was 53.3 MB in the beginning and 38.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,740 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.99 ms. Allocated memory is still 73.4 MB. Free memory was 38.8 MB in the beginning and 54.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,741 INFO L168 Benchmark]: Boogie Preprocessor took 48.41 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 52.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,741 INFO L168 Benchmark]: RCFGBuilder took 2998.36 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 63.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,742 INFO L168 Benchmark]: TraceAbstraction took 10122.05 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 64.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,742 INFO L168 Benchmark]: Witness Printer took 139.67 ms. Allocated memory is still 113.2 MB. Free memory was 64.5 MB in the beginning and 44.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:33:11,745 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 53.7 MB in the end (delta: 54.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 795.09 ms. Allocated memory is still 73.4 MB. Free memory was 53.3 MB in the beginning and 38.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.99 ms. Allocated memory is still 73.4 MB. Free memory was 38.8 MB in the beginning and 54.9 MB in the end (delta: -16.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.41 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 52.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2998.36 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 63.4 MB in the end (delta: -10.8 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10122.05 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 64.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Witness Printer took 139.67 ms. Allocated memory is still 113.2 MB. Free memory was 64.5 MB in the beginning and 44.6 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 286]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L87] int waterLevel = 1; [L88] int methaneLevelCritical = 0; [L181] int cleanupTimeShifts = 4; [L294] int pumpRunning = 0; [L295] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L878] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int retValue_acc ; [L260] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L266] tmp = valid_product() [L268] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L883] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L448] int splverifierCounter ; [L449] int tmp ; [L450] int tmp___0 ; [L451] int tmp___1 ; [L452] int tmp___2 ; [L455] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L465] tmp = __VERIFIER_nondet_int() [L467] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L105] COND TRUE waterLevel < 2 [L106] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L117] COND FALSE !(\read(methaneLevelCritical)) [L120] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L302] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L334] COND TRUE ! pumpRunning [L428] int retValue_acc ; [L429] int tmp ; [L430] int tmp___0 ; [L167] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND FALSE !(waterLevel < 2) [L174] retValue_acc = 0 [L175] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] tmp = isHighWaterSensorDry() [L436] COND FALSE !(\read(tmp)) [L439] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] retValue_acc = tmp___0 [L442] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L336] tmp = isHighWaterLevel() [L338] COND TRUE \read(tmp) [L359] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L900] COND FALSE !(\read(methAndRunningLastTime)) [L905] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L457] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L459] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L465] tmp = __VERIFIER_nondet_int() [L467] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L475] tmp___0 = __VERIFIER_nondet_int() [L477] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L485] tmp___2 = __VERIFIER_nondet_int() [L487] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L302] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L93] COND TRUE waterLevel > 0 [L94] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L309] COND TRUE \read(systemActive) [L331] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L334] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int tmp ; [L889] int tmp___0 ; [L126] int retValue_acc ; [L129] retValue_acc = methaneLevelCritical [L130] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] tmp = isMethaneLevelCritical() [L895] COND TRUE \read(tmp) [L383] int retValue_acc ; [L386] retValue_acc = pumpRunning [L387] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L897] tmp___0 = isPumpRunning() [L899] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L286] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 663 SDslu, 852 SDs, 0 SdLazy, 103 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 415 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 15817 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2060 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...