./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.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_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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_6f270db5-7488-4533-9746-cba9df631e06/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 061cfb2472421d3cfe55520924b41b3593b27e2a ............................................................................................................................................ 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_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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_6f270db5-7488-4533-9746-cba9df631e06/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 061cfb2472421d3cfe55520924b41b3593b27e2a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:21,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:21,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:21,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:21,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:21,077 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:21,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:21,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:21,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:21,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:21,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:21,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:21,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:21,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:21,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:21,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:21,110 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:21,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:21,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:21,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:21,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:21,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:21,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:21,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:21,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:21,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:21,142 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:21,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:21,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:21,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:21,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:21,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:21,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:21,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:21,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:21,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:21,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:21,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:21,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:21,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:21,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:21,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:21,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:21,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:21,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:21,214 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:21,214 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:21,215 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:21,215 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:21,215 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:21,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:21,216 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:21,217 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:21,217 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:21,218 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:21,218 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:21,218 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:21,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:21,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:21,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:21,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:21,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:21,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:21,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:21,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:21,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:21,221 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:21,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:21,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:21,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:21,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:21,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:21,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:21,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:21,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:21,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:21,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:21,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:21,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:21,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:21,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:21,225 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_6f270db5-7488-4533-9746-cba9df631e06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 061cfb2472421d3cfe55520924b41b3593b27e2a [2021-10-11 02:31:21,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:21,523 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:21,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:21,527 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:21,528 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:21,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2021-10-11 02:31:21,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/54f4edaa7/d378f091c77f44c4b98b908a2d77789a/FLAGc1db4e381 [2021-10-11 02:31:22,123 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:22,124 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2021-10-11 02:31:22,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/54f4edaa7/d378f091c77f44c4b98b908a2d77789a/FLAGc1db4e381 [2021-10-11 02:31:22,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/54f4edaa7/d378f091c77f44c4b98b908a2d77789a [2021-10-11 02:31:22,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:22,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:22,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:22,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:22,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:22,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:22" (1/1) ... [2021-10-11 02:31:22,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71369149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:22, skipping insertion in model container [2021-10-11 02:31:22,452 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:22" (1/1) ... [2021-10-11 02:31:22,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:22,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:22,716 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_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[1720,1733] [2021-10-11 02:31:22,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:22,837 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:31:22,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e1c37cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:22, skipping insertion in model container [2021-10-11 02:31:22,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:22,839 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:31:22,841 INFO L168 Benchmark]: Toolchain (without parser) took 395.63 ms. Allocated memory is still 86.0 MB. Free memory was 47.8 MB in the beginning and 59.1 MB in the end (delta: -11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:22,842 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:22,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.88 ms. Allocated memory is still 86.0 MB. Free memory was 47.6 MB in the beginning and 59.3 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:22,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 86.0 MB. Free memory was 65.1 MB in the beginning and 65.0 MB in the end (delta: 69.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 392.88 ms. Allocated memory is still 86.0 MB. Free memory was 47.6 MB in the beginning and 59.3 MB in the end (delta: -11.7 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: 529]: 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 02:31:25,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:25,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:25,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:25,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:25,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:25,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:25,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:25,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:25,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:25,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:25,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:25,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:25,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:25,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:25,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:25,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:25,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:25,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:25,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:25,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:25,202 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:25,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:25,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:25,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:25,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:25,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:25,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:25,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:25,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:25,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:25,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:25,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:25,224 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:25,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:25,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:25,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:25,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:25,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:25,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:25,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:25,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:31:25,274 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:25,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:25,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:25,277 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:25,277 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:25,278 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:25,278 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:25,278 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:25,278 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:25,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:25,281 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:25,282 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:25,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:25,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:25,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:25,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:25,283 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:25,283 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:31:25,283 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:31:25,284 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:25,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:25,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:25,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:25,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:25,285 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:31:25,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:25,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:25,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:25,286 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:25,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:25,286 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:31:25,286 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:25,287 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:25,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:25,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:25,287 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_6f270db5-7488-4533-9746-cba9df631e06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 061cfb2472421d3cfe55520924b41b3593b27e2a [2021-10-11 02:31:25,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:25,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:25,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:25,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:25,725 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:25,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2021-10-11 02:31:25,804 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/967711f0a/11bfbd317ee64fa5b78797ca0d88a3ab/FLAGaed871641 [2021-10-11 02:31:26,489 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:26,490 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2021-10-11 02:31:26,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/967711f0a/11bfbd317ee64fa5b78797ca0d88a3ab/FLAGaed871641 [2021-10-11 02:31:26,755 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/data/967711f0a/11bfbd317ee64fa5b78797ca0d88a3ab [2021-10-11 02:31:26,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:26,760 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:26,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:26,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:26,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:26,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:26" (1/1) ... [2021-10-11 02:31:26,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391a53b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:26, skipping insertion in model container [2021-10-11 02:31:26,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:26" (1/1) ... [2021-10-11 02:31:26,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:26,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:27,061 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_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[1720,1733] [2021-10-11 02:31:27,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:27,209 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:31:27,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:27,222 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_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[1720,1733] [2021-10-11 02:31:27,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:27,288 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:27,302 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_6f270db5-7488-4533-9746-cba9df631e06/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c[1720,1733] [2021-10-11 02:31:27,390 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:27,458 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:27,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27 WrapperNode [2021-10-11 02:31:27,458 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:27,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:27,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:27,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:27,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:27,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:27,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:27,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:27,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,579 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... [2021-10-11 02:31:27,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:27,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:27,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:27,640 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:27,641 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:31:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:30,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:30,368 INFO L299 CfgBuilder]: Removed 196 assume(true) statements. [2021-10-11 02:31:30,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:30 BoogieIcfgContainer [2021-10-11 02:31:30,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:30,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:30,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:30,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:30,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:26" (1/3) ... [2021-10-11 02:31:30,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e962701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:30, skipping insertion in model container [2021-10-11 02:31:30,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:27" (2/3) ... [2021-10-11 02:31:30,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e962701 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:30, skipping insertion in model container [2021-10-11 02:31:30,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:30" (3/3) ... [2021-10-11 02:31:30,379 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2021-10-11 02:31:30,394 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:30,398 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:31:30,409 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:31:30,441 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:30,441 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:30,442 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:30,442 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:30,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:30,442 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:30,442 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:30,442 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:30,459 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2021-10-11 02:31:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:31:30,465 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:30,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:30,466 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:30,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:30,472 INFO L82 PathProgramCache]: Analyzing trace with hash -330245923, now seen corresponding path program 1 times [2021-10-11 02:31:30,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:30,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990726503] [2021-10-11 02:31:30,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:30,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:30,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:31:30,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:30,818 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 02:31:30,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:30,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990726503] [2021-10-11 02:31:30,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:30,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:30,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865517603] [2021-10-11 02:31:30,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:31:30,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:30,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:31:30,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:31:30,849 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2021-10-11 02:31:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:30,913 INFO L93 Difference]: Finished difference Result 256 states and 383 transitions. [2021-10-11 02:31:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:31:30,915 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:31:30,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:30,932 INFO L225 Difference]: With dead ends: 256 [2021-10-11 02:31:30,932 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 02:31:30,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 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 02:31:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 02:31:30,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-11 02:31:30,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-10-11 02:31:30,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2021-10-11 02:31:30,982 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2021-10-11 02:31:30,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:30,983 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2021-10-11 02:31:30,983 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:31:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2021-10-11 02:31:30,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:31:30,984 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:30,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:31,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:31:31,208 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:31,208 INFO L82 PathProgramCache]: Analyzing trace with hash 450073546, now seen corresponding path program 1 times [2021-10-11 02:31:31,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:31,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544950258] [2021-10-11 02:31:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:31,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:31,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:31,487 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 02:31:31,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:31,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544950258] [2021-10-11 02:31:31,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:31,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:31,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698535717] [2021-10-11 02:31:31,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:31,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:31,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:31,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:31,491 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2021-10-11 02:31:31,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:31,525 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2021-10-11 02:31:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:31,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:31:31,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:31,528 INFO L225 Difference]: With dead ends: 127 [2021-10-11 02:31:31,528 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 02:31:31,530 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 02:31:31,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 02:31:31,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 02:31:31,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:31:31,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-10-11 02:31:31,536 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-10-11 02:31:31,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:31,536 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-10-11 02:31:31,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:31,536 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-10-11 02:31:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:31:31,537 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:31,537 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] [2021-10-11 02:31:31,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:31:31,755 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:31,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:31,756 INFO L82 PathProgramCache]: Analyzing trace with hash 445162074, now seen corresponding path program 1 times [2021-10-11 02:31:31,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:31,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070686867] [2021-10-11 02:31:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:31,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:31,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:31,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:31,966 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 02:31:31,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:31,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070686867] [2021-10-11 02:31:31,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:31,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:31,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300713283] [2021-10-11 02:31:31,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:31,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:31,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:31,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:31,969 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2021-10-11 02:31:31,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:31,985 INFO L93 Difference]: Finished difference Result 147 states and 216 transitions. [2021-10-11 02:31:31,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:31,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:31:31,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:31,987 INFO L225 Difference]: With dead ends: 147 [2021-10-11 02:31:31,987 INFO L226 Difference]: Without dead ends: 100 [2021-10-11 02:31:31,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 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 02:31:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-11 02:31:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2021-10-11 02:31:32,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-10-11 02:31:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 141 transitions. [2021-10-11 02:31:32,002 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 141 transitions. Word has length 22 [2021-10-11 02:31:32,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:32,002 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 141 transitions. [2021-10-11 02:31:32,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:32,002 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 141 transitions. [2021-10-11 02:31:32,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:31:32,004 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:32,004 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 02:31:32,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:31:32,216 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:32,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:32,216 INFO L82 PathProgramCache]: Analyzing trace with hash 96758808, now seen corresponding path program 1 times [2021-10-11 02:31:32,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:32,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24907989] [2021-10-11 02:31:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:32,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:32,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:32,450 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 02:31:32,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:32,451 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24907989] [2021-10-11 02:31:32,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:32,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:32,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966792229] [2021-10-11 02:31:32,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:32,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:32,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:32,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:32,456 INFO L87 Difference]: Start difference. First operand 96 states and 141 transitions. Second operand 3 states. [2021-10-11 02:31:32,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:32,536 INFO L93 Difference]: Finished difference Result 227 states and 338 transitions. [2021-10-11 02:31:32,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:32,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:31:32,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:32,541 INFO L225 Difference]: With dead ends: 227 [2021-10-11 02:31:32,541 INFO L226 Difference]: Without dead ends: 137 [2021-10-11 02:31:32,545 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 02:31:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-11 02:31:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-10-11 02:31:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-10-11 02:31:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 195 transitions. [2021-10-11 02:31:32,580 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 195 transitions. Word has length 24 [2021-10-11 02:31:32,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:32,581 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 195 transitions. [2021-10-11 02:31:32,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 195 transitions. [2021-10-11 02:31:32,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:31:32,585 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:32,585 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 02:31:32,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:31:32,806 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:32,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:32,806 INFO L82 PathProgramCache]: Analyzing trace with hash -732744145, now seen corresponding path program 1 times [2021-10-11 02:31:32,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:32,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478463993] [2021-10-11 02:31:32,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:33,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:33,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:33,052 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 02:31:33,052 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:33,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478463993] [2021-10-11 02:31:33,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:33,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:33,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611493627] [2021-10-11 02:31:33,053 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:33,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:33,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:33,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:33,054 INFO L87 Difference]: Start difference. First operand 135 states and 195 transitions. Second operand 5 states. [2021-10-11 02:31:33,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:33,273 INFO L93 Difference]: Finished difference Result 676 states and 993 transitions. [2021-10-11 02:31:33,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:31:33,274 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:31:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:33,278 INFO L225 Difference]: With dead ends: 676 [2021-10-11 02:31:33,278 INFO L226 Difference]: Without dead ends: 547 [2021-10-11 02:31:33,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 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 02:31:33,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2021-10-11 02:31:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 254. [2021-10-11 02:31:33,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-10-11 02:31:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 363 transitions. [2021-10-11 02:31:33,352 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 363 transitions. Word has length 25 [2021-10-11 02:31:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:33,353 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 363 transitions. [2021-10-11 02:31:33,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 363 transitions. [2021-10-11 02:31:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:31:33,355 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:33,355 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] [2021-10-11 02:31:33,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:31:33,561 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:33,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:33,561 INFO L82 PathProgramCache]: Analyzing trace with hash -936551239, now seen corresponding path program 1 times [2021-10-11 02:31:33,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:33,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2115262735] [2021-10-11 02:31:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:33,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:33,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:33,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:33,827 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 02:31:33,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:33,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2115262735] [2021-10-11 02:31:33,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:33,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:33,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287108388] [2021-10-11 02:31:33,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:33,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:33,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:33,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:33,836 INFO L87 Difference]: Start difference. First operand 254 states and 363 transitions. Second operand 5 states. [2021-10-11 02:31:34,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:34,075 INFO L93 Difference]: Finished difference Result 744 states and 1066 transitions. [2021-10-11 02:31:34,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:31:34,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:31:34,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:34,080 INFO L225 Difference]: With dead ends: 744 [2021-10-11 02:31:34,081 INFO L226 Difference]: Without dead ends: 742 [2021-10-11 02:31:34,081 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 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 02:31:34,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2021-10-11 02:31:34,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 254. [2021-10-11 02:31:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-10-11 02:31:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 361 transitions. [2021-10-11 02:31:34,112 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 361 transitions. Word has length 26 [2021-10-11 02:31:34,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:34,112 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 361 transitions. [2021-10-11 02:31:34,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:34,112 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 361 transitions. [2021-10-11 02:31:34,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:31:34,114 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:34,114 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, 1] [2021-10-11 02:31:34,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:31:34,338 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:34,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:34,339 INFO L82 PathProgramCache]: Analyzing trace with hash 9848911, now seen corresponding path program 1 times [2021-10-11 02:31:34,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:34,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326281822] [2021-10-11 02:31:34,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:34,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:34,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:34,577 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 02:31:34,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:34,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326281822] [2021-10-11 02:31:34,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:34,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:34,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080435046] [2021-10-11 02:31:34,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:34,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:34,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:34,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:34,579 INFO L87 Difference]: Start difference. First operand 254 states and 361 transitions. Second operand 3 states. [2021-10-11 02:31:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:34,646 INFO L93 Difference]: Finished difference Result 690 states and 981 transitions. [2021-10-11 02:31:34,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:34,647 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2021-10-11 02:31:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:34,649 INFO L225 Difference]: With dead ends: 690 [2021-10-11 02:31:34,650 INFO L226 Difference]: Without dead ends: 442 [2021-10-11 02:31:34,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 02:31:34,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-10-11 02:31:34,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 440. [2021-10-11 02:31:34,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 440 states. [2021-10-11 02:31:34,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 609 transitions. [2021-10-11 02:31:34,694 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 609 transitions. Word has length 34 [2021-10-11 02:31:34,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:34,695 INFO L481 AbstractCegarLoop]: Abstraction has 440 states and 609 transitions. [2021-10-11 02:31:34,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:34,695 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 609 transitions. [2021-10-11 02:31:34,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:31:34,697 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:34,697 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, 1] [2021-10-11 02:31:34,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:31:34,912 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:34,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:34,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1289712589, now seen corresponding path program 1 times [2021-10-11 02:31:34,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:34,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871365649] [2021-10-11 02:31:34,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:35,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:35,173 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 02:31:35,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:35,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871365649] [2021-10-11 02:31:35,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:35,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:35,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499452453] [2021-10-11 02:31:35,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:35,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:35,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:35,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:35,176 INFO L87 Difference]: Start difference. First operand 440 states and 609 transitions. Second operand 5 states. [2021-10-11 02:31:35,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:35,323 INFO L93 Difference]: Finished difference Result 1222 states and 1668 transitions. [2021-10-11 02:31:35,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:31:35,324 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2021-10-11 02:31:35,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:35,329 INFO L225 Difference]: With dead ends: 1222 [2021-10-11 02:31:35,329 INFO L226 Difference]: Without dead ends: 788 [2021-10-11 02:31:35,330 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 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 02:31:35,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2021-10-11 02:31:35,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 476. [2021-10-11 02:31:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2021-10-11 02:31:35,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 645 transitions. [2021-10-11 02:31:35,388 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 645 transitions. Word has length 34 [2021-10-11 02:31:35,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:35,389 INFO L481 AbstractCegarLoop]: Abstraction has 476 states and 645 transitions. [2021-10-11 02:31:35,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:35,389 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 645 transitions. [2021-10-11 02:31:35,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-11 02:31:35,390 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:35,391 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, 1] [2021-10-11 02:31:35,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:31:35,611 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:35,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:35,611 INFO L82 PathProgramCache]: Analyzing trace with hash 702906575, now seen corresponding path program 1 times [2021-10-11 02:31:35,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:35,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161256082] [2021-10-11 02:31:35,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:35,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:31:35,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:35,857 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 02:31:35,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:35,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [161256082] [2021-10-11 02:31:35,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:35,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:35,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380699924] [2021-10-11 02:31:35,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:31:35,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:35,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:31:35,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:31:35,859 INFO L87 Difference]: Start difference. First operand 476 states and 645 transitions. Second operand 4 states. [2021-10-11 02:31:35,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:35,984 INFO L93 Difference]: Finished difference Result 1036 states and 1390 transitions. [2021-10-11 02:31:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:31:35,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2021-10-11 02:31:35,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:35,988 INFO L225 Difference]: With dead ends: 1036 [2021-10-11 02:31:35,988 INFO L226 Difference]: Without dead ends: 566 [2021-10-11 02:31:35,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 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 02:31:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-10-11 02:31:36,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 398. [2021-10-11 02:31:36,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2021-10-11 02:31:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 527 transitions. [2021-10-11 02:31:36,038 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 527 transitions. Word has length 34 [2021-10-11 02:31:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:36,039 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 527 transitions. [2021-10-11 02:31:36,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:31:36,039 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 527 transitions. [2021-10-11 02:31:36,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-10-11 02:31:36,042 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:36,042 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, 1, 1] [2021-10-11 02:31:36,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:31:36,265 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:36,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:36,265 INFO L82 PathProgramCache]: Analyzing trace with hash 939478607, now seen corresponding path program 1 times [2021-10-11 02:31:36,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:36,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681640260] [2021-10-11 02:31:36,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:36,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:36,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:36,593 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 02:31:36,593 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:36,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681640260] [2021-10-11 02:31:36,594 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:36,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:31:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609991597] [2021-10-11 02:31:36,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:36,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:36,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:36,596 INFO L87 Difference]: Start difference. First operand 398 states and 527 transitions. Second operand 6 states. [2021-10-11 02:31:38,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:38,437 INFO L93 Difference]: Finished difference Result 1430 states and 1900 transitions. [2021-10-11 02:31:38,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:31:38,437 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2021-10-11 02:31:38,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:38,443 INFO L225 Difference]: With dead ends: 1430 [2021-10-11 02:31:38,443 INFO L226 Difference]: Without dead ends: 1038 [2021-10-11 02:31:38,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:31:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2021-10-11 02:31:38,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 398. [2021-10-11 02:31:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2021-10-11 02:31:38,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 517 transitions. [2021-10-11 02:31:38,507 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 517 transitions. Word has length 35 [2021-10-11 02:31:38,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:38,508 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 517 transitions. [2021-10-11 02:31:38,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 517 transitions. [2021-10-11 02:31:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-11 02:31:38,509 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:38,509 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:38,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:31:38,727 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:38,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:38,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1806093559, now seen corresponding path program 1 times [2021-10-11 02:31:38,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:38,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72593546] [2021-10-11 02:31:38,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/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 02:31:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:38,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:38,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:39,007 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:39,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72593546] [2021-10-11 02:31:39,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:39,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:39,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548536720] [2021-10-11 02:31:39,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:39,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:39,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:39,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:39,016 INFO L87 Difference]: Start difference. First operand 398 states and 517 transitions. Second operand 3 states. [2021-10-11 02:31:39,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:39,111 INFO L93 Difference]: Finished difference Result 676 states and 882 transitions. [2021-10-11 02:31:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:39,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2021-10-11 02:31:39,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:39,115 INFO L225 Difference]: With dead ends: 676 [2021-10-11 02:31:39,115 INFO L226 Difference]: Without dead ends: 474 [2021-10-11 02:31:39,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 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 02:31:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-10-11 02:31:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 276. [2021-10-11 02:31:39,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2021-10-11 02:31:39,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 357 transitions. [2021-10-11 02:31:39,167 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 357 transitions. Word has length 52 [2021-10-11 02:31:39,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:39,167 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 357 transitions. [2021-10-11 02:31:39,167 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:39,168 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 357 transitions. [2021-10-11 02:31:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 02:31:39,169 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:39,169 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:39,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2021-10-11 02:31:39,386 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:39,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:39,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1267756066, now seen corresponding path program 1 times [2021-10-11 02:31:39,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:39,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362657337] [2021-10-11 02:31:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:39,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:39,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:39,683 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-11 02:31:39,683 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:39,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362657337] [2021-10-11 02:31:39,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:39,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:31:39,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994823125] [2021-10-11 02:31:39,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:39,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:39,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:39,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:39,685 INFO L87 Difference]: Start difference. First operand 276 states and 357 transitions. Second operand 6 states. [2021-10-11 02:31:41,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:41,679 INFO L93 Difference]: Finished difference Result 755 states and 988 transitions. [2021-10-11 02:31:41,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:31:41,679 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2021-10-11 02:31:41,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:41,680 INFO L225 Difference]: With dead ends: 755 [2021-10-11 02:31:41,680 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:31:41,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:31:41,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:31:41,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:31:41,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:31:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:31:41,682 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2021-10-11 02:31:41,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:41,682 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:31:41,682 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:31:41,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:31:41,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2021-10-11 02:31:41,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:31:42,762 WARN L197 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 163 [2021-10-11 02:31:43,001 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 142 [2021-10-11 02:31:43,273 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 161 [2021-10-11 02:31:43,885 WARN L197 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 161 [2021-10-11 02:31:44,315 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 147 [2021-10-11 02:31:44,514 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 100 [2021-10-11 02:31:44,663 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 119 [2021-10-11 02:31:44,790 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 119 [2021-10-11 02:31:45,191 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 163 [2021-10-11 02:31:46,639 WARN L197 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 161 DAG size of output: 20 [2021-10-11 02:31:47,113 WARN L197 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 18 [2021-10-11 02:31:47,940 WARN L197 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 18 [2021-10-11 02:31:49,106 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 160 DAG size of output: 19 [2021-10-11 02:31:49,901 WARN L197 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 20 [2021-10-11 02:31:50,462 WARN L197 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 14 [2021-10-11 02:31:51,047 WARN L197 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 28 [2021-10-11 02:31:51,613 WARN L197 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 28 [2021-10-11 02:31:52,771 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 161 DAG size of output: 20 [2021-10-11 02:31:53,481 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 22 [2021-10-11 02:31:53,484 INFO L258 CegarLoopResult]: At program point L167-6(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,484 INFO L258 CegarLoopResult]: At program point L167-7(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,484 INFO L258 CegarLoopResult]: At program point L167-8(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,484 INFO L258 CegarLoopResult]: At program point L167-9(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,485 INFO L258 CegarLoopResult]: At program point L167-10(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,485 INFO L258 CegarLoopResult]: At program point L167-11(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,485 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,485 INFO L258 CegarLoopResult]: At program point L237(lines 237 243) the Hoare annotation is: (let ((.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1) (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse2))) [2021-10-11 02:31:53,485 INFO L258 CegarLoopResult]: At program point L237-1(lines 237 243) the Hoare annotation is: false [2021-10-11 02:31:53,486 INFO L258 CegarLoopResult]: At program point L237-2(lines 237 243) the Hoare annotation is: false [2021-10-11 02:31:53,486 INFO L258 CegarLoopResult]: At program point L105(lines 1 961) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L207(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L207-1(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L207-2(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L207-3(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,486 INFO L262 CegarLoopResult]: For program point L207-4(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L75-1(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L207-5(lines 207 213) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L75-2(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L142(lines 142 146) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L407(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L407-2(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,487 INFO L262 CegarLoopResult]: For program point L407-3(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-5(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-6(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-8(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-9(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-11(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-12(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-14(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,488 INFO L262 CegarLoopResult]: For program point L407-15(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,489 INFO L262 CegarLoopResult]: For program point L407-17(lines 407 411) no Hoare annotation was computed. [2021-10-11 02:31:53,489 INFO L262 CegarLoopResult]: For program point L474(lines 474 487) no Hoare annotation was computed. [2021-10-11 02:31:53,489 INFO L258 CegarLoopResult]: At program point L212(lines 203 216) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32))) [2021-10-11 02:31:53,489 INFO L258 CegarLoopResult]: At program point L212-1(lines 203 216) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse2))) [2021-10-11 02:31:53,489 INFO L258 CegarLoopResult]: At program point L212-2(lines 203 216) the Hoare annotation is: false [2021-10-11 02:31:53,489 INFO L258 CegarLoopResult]: At program point L113(lines 108 116) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,490 INFO L258 CegarLoopResult]: At program point L212-3(lines 203 216) the Hoare annotation is: false [2021-10-11 02:31:53,490 INFO L258 CegarLoopResult]: At program point L212-4(lines 203 216) the Hoare annotation is: false [2021-10-11 02:31:53,490 INFO L258 CegarLoopResult]: At program point L212-5(lines 203 216) the Hoare annotation is: false [2021-10-11 02:31:53,490 INFO L262 CegarLoopResult]: For program point L445(lines 444 491) no Hoare annotation was computed. [2021-10-11 02:31:53,490 INFO L262 CegarLoopResult]: For program point L446(lines 446 450) no Hoare annotation was computed. [2021-10-11 02:31:53,490 INFO L258 CegarLoopResult]: At program point L413(lines 398 416) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32))) [2021-10-11 02:31:53,490 INFO L258 CegarLoopResult]: At program point L413-1(lines 398 416) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 .cse2))) [2021-10-11 02:31:53,491 INFO L258 CegarLoopResult]: At program point L413-2(lines 398 416) the Hoare annotation is: false [2021-10-11 02:31:53,491 INFO L258 CegarLoopResult]: At program point L413-3(lines 398 416) the Hoare annotation is: false [2021-10-11 02:31:53,491 INFO L258 CegarLoopResult]: At program point L413-4(lines 398 416) the Hoare annotation is: false [2021-10-11 02:31:53,491 INFO L258 CegarLoopResult]: At program point L413-5(lines 398 416) the Hoare annotation is: false [2021-10-11 02:31:53,491 INFO L262 CegarLoopResult]: For program point L480(lines 480 486) no Hoare annotation was computed. [2021-10-11 02:31:53,491 INFO L258 CegarLoopResult]: At program point L480-1(lines 230 236) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4) (and .cse3 .cse0 .cse1) (and .cse0 .cse4 .cse2))) [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349(lines 342 352) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneAlarm_#res| (_ bv4294967295 32))) .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))))) [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-1(lines 342 352) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32))) [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-2(lines 342 352) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= (_ bv0 32) (bvadd |ULTIMATE.start_isMethaneAlarm_#res| (_ bv4294967295 32))) .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse2))) [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-3(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-4(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-5(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,492 INFO L258 CegarLoopResult]: At program point L349-6(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,493 INFO L258 CegarLoopResult]: At program point L349-7(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,493 INFO L258 CegarLoopResult]: At program point L349-8(lines 342 352) the Hoare annotation is: false [2021-10-11 02:31:53,493 INFO L258 CegarLoopResult]: At program point L878-2(lines 878 892) the Hoare annotation is: false [2021-10-11 02:31:53,493 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,493 INFO L262 CegarLoopResult]: For program point L53(lines 53 66) no Hoare annotation was computed. [2021-10-11 02:31:53,493 INFO L258 CegarLoopResult]: At program point L53-1(lines 1 961) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~0)) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 (not (= ~systemActive~0 (_ bv0 32))) .cse2 .cse4) (and .cse1 .cse3 .cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))))) [2021-10-11 02:31:53,493 INFO L262 CegarLoopResult]: For program point L53-2(lines 53 66) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L258 CegarLoopResult]: At program point L53-3(lines 1 961) the Hoare annotation is: false [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L53-4(lines 53 66) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L258 CegarLoopResult]: At program point L53-5(lines 1 961) the Hoare annotation is: false [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L879(line 879) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L154(lines 154 158) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L882(lines 882 886) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L882-1(lines 230 236) no Hoare annotation was computed. [2021-10-11 02:31:53,494 INFO L262 CegarLoopResult]: For program point L288(lines 288 305) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L288-1(lines 288 305) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L288-2(lines 288 305) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L57(lines 57 63) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 63) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L949(lines 949 956) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L57-4(lines 57 63) no Hoare annotation was computed. [2021-10-11 02:31:53,495 INFO L265 CegarLoopResult]: At program point L949-1(lines 949 956) the Hoare annotation is: true [2021-10-11 02:31:53,495 INFO L262 CegarLoopResult]: For program point L454(lines 454 460) no Hoare annotation was computed. [2021-10-11 02:31:53,496 INFO L258 CegarLoopResult]: At program point L454-1(lines 454 460) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification1_spec__1_~tmp~0)) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 (not (= ~systemActive~0 (_ bv0 32))) .cse2 .cse4) (and .cse1 .cse3 .cse4 (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))))) [2021-10-11 02:31:53,496 INFO L262 CegarLoopResult]: For program point L421(lines 421 427) no Hoare annotation was computed. [2021-10-11 02:31:53,496 INFO L258 CegarLoopResult]: At program point L421-1(lines 421 427) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1))) [2021-10-11 02:31:53,496 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,496 INFO L262 CegarLoopResult]: For program point L324(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,496 INFO L262 CegarLoopResult]: For program point L324-2(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,496 INFO L262 CegarLoopResult]: For program point L324-4(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,497 INFO L262 CegarLoopResult]: For program point L324-6(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,497 INFO L262 CegarLoopResult]: For program point L324-8(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,497 INFO L262 CegarLoopResult]: For program point L324-10(lines 324 330) no Hoare annotation was computed. [2021-10-11 02:31:53,497 INFO L258 CegarLoopResult]: At program point L358(lines 353 361) the Hoare annotation is: (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-11 02:31:53,497 INFO L258 CegarLoopResult]: At program point L358-1(lines 353 361) the Hoare annotation is: false [2021-10-11 02:31:53,497 INFO L262 CegarLoopResult]: For program point L292(lines 292 300) no Hoare annotation was computed. [2021-10-11 02:31:53,497 INFO L258 CegarLoopResult]: At program point L358-2(lines 353 361) the Hoare annotation is: false [2021-10-11 02:31:53,497 INFO L262 CegarLoopResult]: For program point L292-1(lines 292 300) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L292-2(lines 292 300) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L258 CegarLoopResult]: At program point L492(lines 443 493) the Hoare annotation is: false [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L262(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L262-1(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L262-2(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L262-3(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L130(lines 130 134) no Hoare annotation was computed. [2021-10-11 02:31:53,498 INFO L262 CegarLoopResult]: For program point L262-4(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,499 INFO L262 CegarLoopResult]: For program point L262-5(lines 262 279) no Hoare annotation was computed. [2021-10-11 02:31:53,499 INFO L262 CegarLoopResult]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-10-11 02:31:53,499 INFO L262 CegarLoopResult]: For program point L130-6(lines 130 134) no Hoare annotation was computed. [2021-10-11 02:31:53,499 INFO L258 CegarLoopResult]: At program point L230(lines 229 248) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4) (and .cse3 .cse0 .cse1) (and .cse0 .cse4 .cse2))) [2021-10-11 02:31:53,499 INFO L262 CegarLoopResult]: For program point L230-1(lines 230 236) no Hoare annotation was computed. [2021-10-11 02:31:53,499 INFO L258 CegarLoopResult]: At program point L230-2(lines 229 248) the Hoare annotation is: false [2021-10-11 02:31:53,499 INFO L258 CegarLoopResult]: At program point L230-3(lines 229 248) the Hoare annotation is: false [2021-10-11 02:31:53,500 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:31:53,500 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 75) no Hoare annotation was computed. [2021-10-11 02:31:53,500 INFO L265 CegarLoopResult]: At program point L958(lines 939 961) the Hoare annotation is: true [2021-10-11 02:31:53,500 INFO L258 CegarLoopResult]: At program point L926(lines 922 928) the Hoare annotation is: (and (= (bvadd ~waterLevel~0 (_ bv4294967295 32)) (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32)) (= (bvadd ~systemActive~0 (_ bv4294967295 32)) (_ bv0 32))) [2021-10-11 02:31:53,500 INFO L262 CegarLoopResult]: For program point L464(lines 464 470) no Hoare annotation was computed. [2021-10-11 02:31:53,500 INFO L258 CegarLoopResult]: At program point L464-1(lines 464 470) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32)))) (.cse1 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse4) (and .cse3 .cse0 .cse1) (and .cse0 .cse4 .cse2))) [2021-10-11 02:31:53,500 INFO L262 CegarLoopResult]: For program point L266(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,501 INFO L262 CegarLoopResult]: For program point L266-1(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,501 INFO L262 CegarLoopResult]: For program point L266-2(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,501 INFO L258 CegarLoopResult]: At program point L167(lines 162 170) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32))) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))))) [2021-10-11 02:31:53,501 INFO L262 CegarLoopResult]: For program point L266-3(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,501 INFO L258 CegarLoopResult]: At program point L167-1(lines 162 170) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= ~systemActive~0 (_ bv0 32))) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= (_ bv0 32) ~pumpRunning~0) (= ~methaneLevelCritical~0 (_ bv0 32))) [2021-10-11 02:31:53,501 INFO L262 CegarLoopResult]: For program point L266-4(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,501 INFO L258 CegarLoopResult]: At program point L167-2(lines 162 170) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (= ~systemActive~0 (_ bv0 32)))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 (= ~methaneLevelCritical~0 (_ bv0 32))))) [2021-10-11 02:31:53,502 INFO L262 CegarLoopResult]: For program point L266-5(lines 266 274) no Hoare annotation was computed. [2021-10-11 02:31:53,502 INFO L258 CegarLoopResult]: At program point L167-3(lines 162 170) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32)))) (or (and .cse0 (not (= ~systemActive~0 (_ bv0 32))) .cse1 .cse2) (and (= (_ bv0 32) (bvadd ~methaneLevelCritical~0 (_ bv4294967295 32))) .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse3 .cse2))) [2021-10-11 02:31:53,502 INFO L258 CegarLoopResult]: At program point L167-4(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,502 INFO L258 CegarLoopResult]: At program point L167-5(lines 162 170) the Hoare annotation is: false [2021-10-11 02:31:53,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:53 BoogieIcfgContainer [2021-10-11 02:31:53,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:53,532 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:53,532 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:53,533 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:53,533 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:30" (3/4) ... [2021-10-11 02:31:53,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:31:53,556 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-11 02:31:53,558 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-11 02:31:53,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-11 02:31:53,561 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-11 02:31:53,562 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:31:53,564 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:53,565 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:31:53,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == tmp && splverifierCounter == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((0bv32 == tmp && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2021-10-11 02:31:53,591 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0bv32 == tmp && splverifierCounter == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((0bv32 == tmp && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) [2021-10-11 02:31:53,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) [2021-10-11 02:31:53,593 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) [2021-10-11 02:31:53,594 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) [2021-10-11 02:31:53,595 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && \result == 1bv32) && 0bv32 == pumpRunning [2021-10-11 02:31:53,597 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 [2021-10-11 02:31:53,598 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) [2021-10-11 02:31:53,598 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 [2021-10-11 02:31:53,598 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-11 02:31:53,599 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 [2021-10-11 02:31:53,599 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 [2021-10-11 02:31:53,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f270db5-7488-4533-9746-cba9df631e06/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:53,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:53,668 INFO L168 Benchmark]: Toolchain (without parser) took 26907.06 ms. Allocated memory was 60.8 MB in the beginning and 142.6 MB in the end (delta: 81.8 MB). Free memory was 39.0 MB in the beginning and 91.1 MB in the end (delta: -52.1 MB). Peak memory consumption was 28.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,669 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:53,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.46 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 41.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,669 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.11 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 37.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,670 INFO L168 Benchmark]: Boogie Preprocessor took 69.56 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,670 INFO L168 Benchmark]: RCFGBuilder took 2730.70 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 48.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,671 INFO L168 Benchmark]: TraceAbstraction took 23160.03 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 48.2 MB in the beginning and 102.7 MB in the end (delta: -54.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,671 INFO L168 Benchmark]: Witness Printer took 134.61 ms. Allocated memory is still 142.6 MB. Free memory was 101.6 MB in the beginning and 91.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:53,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 696.46 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 41.5 MB in the end (delta: -2.6 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.11 ms. Allocated memory is still 60.8 MB. Free memory was 41.5 MB in the beginning and 37.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.56 ms. Allocated memory is still 60.8 MB. Free memory was 37.6 MB in the beginning and 34.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2730.70 ms. Allocated memory was 60.8 MB in the beginning and 79.7 MB in the end (delta: 18.9 MB). Free memory was 34.6 MB in the beginning and 48.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 23.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23160.03 ms. Allocated memory was 79.7 MB in the beginning and 142.6 MB in the end (delta: 62.9 MB). Free memory was 48.2 MB in the beginning and 102.7 MB in the end (delta: -54.5 MB). Peak memory consumption was 76.3 MB. Max. memory is 16.1 GB. * Witness Printer took 134.61 ms. Allocated memory is still 142.6 MB. Free memory was 101.6 MB in the beginning and 91.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 75]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 75]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 75]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32))) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == \result) && \result == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 353]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 398]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 464]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32))) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 421]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: ((((((0bv32 == tmp && splverifierCounter == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((0bv32 == tmp && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32))) || ((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && 0bv32 == pumpRunning)) || ((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((0bv32 == tmp && splverifierCounter == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((0bv32 == tmp && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32)) || (((splverifierCounter == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) || (((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: ((((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32 - InvariantResult [Line: 443]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && !(systemActive == 0bv32)) && \result == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((~bvadd64(waterLevel, 4294967295bv32) == 0bv32 && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && ~bvadd64(systemActive, 4294967295bv32) == 0bv32 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && !(systemActive == 0bv32)) && \result == 0bv32) && methaneLevelCritical == 0bv32) || (((0bv32 == ~bvadd64(methaneLevelCritical, 4294967295bv32) && splverifierCounter == 0bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && \result == 0bv32) && 0bv32 == pumpRunning) && methaneLevelCritical == 0bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.4s, OverallIterations: 12, TraceHistogramMax: 2, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 11.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1386 SDtfs, 1766 SDslu, 2368 SDs, 0 SdLazy, 357 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=476occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 2107 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 310 NumberOfFragments, 748 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1262377 FormulaSimplificationTreeSizeReduction, 3.4s HoareSimplificationTime, 56 FomulaSimplificationsInter, 165006 FormulaSimplificationTreeSizeReductionInter, 8.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 373 NumberOfCodeBlocks, 373 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 361 ConstructedInterpolants, 0 QuantifiedInterpolants, 25905 SizeOfPredicates, 23 NumberOfNonLiveVariables, 2529 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 27/27 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 correct! Received shutdown request...