./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_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_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 58d8e3bdac126218d105f0be97d14e97f305aadd ............................................................................................................................................ 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 58d8e3bdac126218d105f0be97d14e97f305aadd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:31:03,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:03,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:03,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:03,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:03,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:03,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:03,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:03,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:03,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:03,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:03,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:03,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:03,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:03,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:03,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:03,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:03,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:03,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:03,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:03,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:03,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:03,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:03,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:03,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:03,171 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:03,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:03,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:03,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:03,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:03,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:03,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:03,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:03,180 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:03,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:03,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:03,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:03,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:03,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:03,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:03,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:03,185 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:03,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:03,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:03,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:03,223 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:03,223 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:03,224 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:03,224 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:03,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:03,230 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:03,230 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:03,231 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:03,232 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:03,232 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:03,232 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:03,232 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:03,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:03,233 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:03,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:03,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:03,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:03,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:03,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:03,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:03,235 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:03,235 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:03,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:03,235 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:03,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:03,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:03,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:03,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:03,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:03,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:03,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:03,238 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d8e3bdac126218d105f0be97d14e97f305aadd [2021-10-11 02:31:03,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:03,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:03,544 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:03,545 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:03,546 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:03,547 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2021-10-11 02:31:03,619 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/4a122aff1/eaeffaee0caf494185d6861ce853aed6/FLAG623c571be [2021-10-11 02:31:04,129 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:04,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2021-10-11 02:31:04,153 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/4a122aff1/eaeffaee0caf494185d6861ce853aed6/FLAG623c571be [2021-10-11 02:31:04,440 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/4a122aff1/eaeffaee0caf494185d6861ce853aed6 [2021-10-11 02:31:04,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:04,444 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:04,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:04,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:04,448 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:04,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:04" (1/1) ... [2021-10-11 02:31:04,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ce2e2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:04, skipping insertion in model container [2021-10-11 02:31:04,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:04" (1/1) ... [2021-10-11 02:31:04,457 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:04,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:04,828 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16386,16399] [2021-10-11 02:31:04,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:04,863 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 02:31:04,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75bd0ed1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:04, skipping insertion in model container [2021-10-11 02:31:04,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:04,865 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:31:04,868 INFO L168 Benchmark]: Toolchain (without parser) took 422.15 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 42.4 MB in the beginning and 76.1 MB in the end (delta: -33.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,869 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 79.7 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:04,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.65 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 42.2 MB in the beginning and 76.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,874 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 79.7 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 419.65 ms. Allocated memory was 79.7 MB in the beginning and 104.9 MB in the end (delta: 25.2 MB). Free memory was 42.2 MB in the beginning and 76.1 MB in the end (delta: -33.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 460]: 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 02:31:07,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:07,136 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:07,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:07,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:07,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:07,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:07,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:07,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:07,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:07,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:07,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:07,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:07,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:07,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:07,212 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:07,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:07,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:07,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:07,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:07,231 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:07,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:07,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:07,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:07,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:07,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:07,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:07,251 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:07,252 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:07,253 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:07,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:07,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:07,257 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:07,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:07,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:07,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:07,260 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:07,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:07,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:07,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:07,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:07,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:31:07,309 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:07,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:07,311 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:07,311 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:07,311 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:07,311 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:07,312 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:07,312 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:07,312 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:07,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:07,314 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:07,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:07,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:07,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:07,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:07,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:07,316 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:07,316 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:31:07,316 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:31:07,316 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:07,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:07,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:07,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:07,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:07,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:31:07,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:07,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:07,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:07,319 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:07,319 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:07,319 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:31:07,319 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:07,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:07,320 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:07,320 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:07,320 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58d8e3bdac126218d105f0be97d14e97f305aadd [2021-10-11 02:31:07,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:07,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:07,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:07,758 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:07,758 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:07,759 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2021-10-11 02:31:07,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/940d637be/9160138072324fd18cb87e2ed7c0eb4b/FLAGdc88ee63e [2021-10-11 02:31:08,511 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:08,512 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c [2021-10-11 02:31:08,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/940d637be/9160138072324fd18cb87e2ed7c0eb4b/FLAGdc88ee63e [2021-10-11 02:31:08,782 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/data/940d637be/9160138072324fd18cb87e2ed7c0eb4b [2021-10-11 02:31:08,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:08,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:08,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:08,789 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:08,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:08,793 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:08" (1/1) ... [2021-10-11 02:31:08,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1092bea3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:08, skipping insertion in model container [2021-10-11 02:31:08,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:08" (1/1) ... [2021-10-11 02:31:08,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:08,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:09,199 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16386,16399] [2021-10-11 02:31:09,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:09,244 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:31:09,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:09,355 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16386,16399] [2021-10-11 02:31:09,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:09,373 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:09,431 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_0f1cf970-22c5-486e-8d5e-8d8c89413885/sv-benchmarks/c/product-lines/minepump_spec4_product47.cil.c[16386,16399] [2021-10-11 02:31:09,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:09,474 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:09,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09 WrapperNode [2021-10-11 02:31:09,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:09,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:09,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:09,476 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:09,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:09,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:09,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:09,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:09,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... [2021-10-11 02:31:09,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:09,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:09,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:09,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:09,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:31:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:09,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:12,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:12,282 INFO L299 CfgBuilder]: Removed 196 assume(true) statements. [2021-10-11 02:31:12,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:12 BoogieIcfgContainer [2021-10-11 02:31:12,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:12,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:12,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:12,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:12,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:08" (1/3) ... [2021-10-11 02:31:12,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2074dcde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:12, skipping insertion in model container [2021-10-11 02:31:12,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:09" (2/3) ... [2021-10-11 02:31:12,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2074dcde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:12, skipping insertion in model container [2021-10-11 02:31:12,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:12" (3/3) ... [2021-10-11 02:31:12,293 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2021-10-11 02:31:12,306 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:12,310 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:31:12,321 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:31:12,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:12,345 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:12,345 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:12,345 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:12,345 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:12,345 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:12,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:12,346 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:12,361 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2021-10-11 02:31:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:31:12,367 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:12,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:12,368 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:12,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:12,374 INFO L82 PathProgramCache]: Analyzing trace with hash -330245923, now seen corresponding path program 1 times [2021-10-11 02:31:12,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:12,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639085737] [2021-10-11 02:31:12,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:12,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:31:12,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:12,723 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 02:31:12,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:12,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639085737] [2021-10-11 02:31:12,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:12,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:12,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827599133] [2021-10-11 02:31:12,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:31:12,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:12,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:31:12,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:31:12,745 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2021-10-11 02:31:12,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:12,779 INFO L93 Difference]: Finished difference Result 256 states and 383 transitions. [2021-10-11 02:31:12,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:31:12,780 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:31:12,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:12,792 INFO L225 Difference]: With dead ends: 256 [2021-10-11 02:31:12,792 INFO L226 Difference]: Without dead ends: 127 [2021-10-11 02:31:12,795 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 02:31:12,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-10-11 02:31:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-10-11 02:31:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2021-10-11 02:31:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2021-10-11 02:31:12,851 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 16 [2021-10-11 02:31:12,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:12,851 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2021-10-11 02:31:12,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:31:12,851 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2021-10-11 02:31:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:31:12,853 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:12,853 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 02:31:13,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:31:13,068 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:13,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:13,069 INFO L82 PathProgramCache]: Analyzing trace with hash 450073546, now seen corresponding path program 1 times [2021-10-11 02:31:13,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:13,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406415790] [2021-10-11 02:31:13,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:13,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:13,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:13,304 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 02:31:13,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:13,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406415790] [2021-10-11 02:31:13,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:13,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:13,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407949360] [2021-10-11 02:31:13,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:13,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:13,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:13,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:13,309 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand 3 states. [2021-10-11 02:31:13,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:13,322 INFO L93 Difference]: Finished difference Result 127 states and 183 transitions. [2021-10-11 02:31:13,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:13,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:31:13,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:13,324 INFO L225 Difference]: With dead ends: 127 [2021-10-11 02:31:13,324 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 02:31:13,326 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 02:31:13,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 02:31:13,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 02:31:13,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:31:13,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-10-11 02:31:13,333 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-10-11 02:31:13,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:13,333 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-10-11 02:31:13,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:13,333 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-10-11 02:31:13,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:31:13,334 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:13,335 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 02:31:13,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:31:13,550 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:13,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:13,551 INFO L82 PathProgramCache]: Analyzing trace with hash 445162074, now seen corresponding path program 1 times [2021-10-11 02:31:13,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:13,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [684701272] [2021-10-11 02:31:13,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:13,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:13,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:13,779 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 02:31:13,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:13,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [684701272] [2021-10-11 02:31:13,780 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:13,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:13,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346181892] [2021-10-11 02:31:13,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:13,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:13,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:13,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:13,781 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2021-10-11 02:31:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:13,815 INFO L93 Difference]: Finished difference Result 147 states and 216 transitions. [2021-10-11 02:31:13,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:13,816 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:31:13,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:13,822 INFO L225 Difference]: With dead ends: 147 [2021-10-11 02:31:13,822 INFO L226 Difference]: Without dead ends: 100 [2021-10-11 02:31:13,823 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 02:31:13,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-11 02:31:13,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2021-10-11 02:31:13,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-10-11 02:31:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 141 transitions. [2021-10-11 02:31:13,855 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 141 transitions. Word has length 22 [2021-10-11 02:31:13,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:13,856 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 141 transitions. [2021-10-11 02:31:13,856 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:13,856 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 141 transitions. [2021-10-11 02:31:13,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:31:13,858 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:13,858 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 02:31:14,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:31:14,075 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:14,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:14,076 INFO L82 PathProgramCache]: Analyzing trace with hash 96758808, now seen corresponding path program 1 times [2021-10-11 02:31:14,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:14,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1605773313] [2021-10-11 02:31:14,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:14,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:14,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:14,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:14,305 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 02:31:14,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:14,306 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1605773313] [2021-10-11 02:31:14,306 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:14,306 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:14,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906704886] [2021-10-11 02:31:14,307 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:14,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:14,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:14,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:14,308 INFO L87 Difference]: Start difference. First operand 96 states and 141 transitions. Second operand 3 states. [2021-10-11 02:31:14,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:14,406 INFO L93 Difference]: Finished difference Result 227 states and 338 transitions. [2021-10-11 02:31:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:14,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:31:14,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:14,409 INFO L225 Difference]: With dead ends: 227 [2021-10-11 02:31:14,409 INFO L226 Difference]: Without dead ends: 137 [2021-10-11 02:31:14,413 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 02:31:14,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-11 02:31:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2021-10-11 02:31:14,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2021-10-11 02:31:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 195 transitions. [2021-10-11 02:31:14,442 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 195 transitions. Word has length 24 [2021-10-11 02:31:14,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:14,442 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 195 transitions. [2021-10-11 02:31:14,443 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:14,443 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 195 transitions. [2021-10-11 02:31:14,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:31:14,444 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:14,444 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 02:31:14,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:31:14,663 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:14,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:14,663 INFO L82 PathProgramCache]: Analyzing trace with hash -732744145, now seen corresponding path program 1 times [2021-10-11 02:31:14,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:14,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251486459] [2021-10-11 02:31:14,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:14,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:14,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:14,922 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 02:31:14,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:14,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251486459] [2021-10-11 02:31:14,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:14,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:14,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652653601] [2021-10-11 02:31:14,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:14,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:14,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:14,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:14,925 INFO L87 Difference]: Start difference. First operand 135 states and 195 transitions. Second operand 5 states. [2021-10-11 02:31:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:15,076 INFO L93 Difference]: Finished difference Result 487 states and 709 transitions. [2021-10-11 02:31:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:31:15,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:31:15,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:15,080 INFO L225 Difference]: With dead ends: 487 [2021-10-11 02:31:15,080 INFO L226 Difference]: Without dead ends: 358 [2021-10-11 02:31:15,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:31:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-10-11 02:31:15,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 224. [2021-10-11 02:31:15,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2021-10-11 02:31:15,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 314 transitions. [2021-10-11 02:31:15,137 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 314 transitions. Word has length 25 [2021-10-11 02:31:15,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:15,137 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 314 transitions. [2021-10-11 02:31:15,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 314 transitions. [2021-10-11 02:31:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:31:15,140 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:15,140 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 02:31:15,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:31:15,351 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:15,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:15,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1602914161, now seen corresponding path program 1 times [2021-10-11 02:31:15,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:15,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [758418395] [2021-10-11 02:31:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:15,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:15,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:31:15,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:15,620 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 02:31:15,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:15,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [758418395] [2021-10-11 02:31:15,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:15,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:15,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883907852] [2021-10-11 02:31:15,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:15,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:15,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:15,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:15,623 INFO L87 Difference]: Start difference. First operand 224 states and 314 transitions. Second operand 6 states. [2021-10-11 02:31:17,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:17,072 INFO L93 Difference]: Finished difference Result 686 states and 991 transitions. [2021-10-11 02:31:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:31:17,073 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-10-11 02:31:17,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:17,077 INFO L225 Difference]: With dead ends: 686 [2021-10-11 02:31:17,077 INFO L226 Difference]: Without dead ends: 557 [2021-10-11 02:31:17,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:31:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-10-11 02:31:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 434. [2021-10-11 02:31:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2021-10-11 02:31:17,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 605 transitions. [2021-10-11 02:31:17,121 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 605 transitions. Word has length 26 [2021-10-11 02:31:17,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:17,122 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 605 transitions. [2021-10-11 02:31:17,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:17,122 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 605 transitions. [2021-10-11 02:31:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-11 02:31:17,125 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:17,125 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] [2021-10-11 02:31:17,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:31:17,340 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:17,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:17,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1294771641, now seen corresponding path program 1 times [2021-10-11 02:31:17,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:17,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712435675] [2021-10-11 02:31:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:17,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:17,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:31:17,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:17,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712435675] [2021-10-11 02:31:17,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:17,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:31:17,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268649867] [2021-10-11 02:31:17,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:17,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:17,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:17,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:17,605 INFO L87 Difference]: Start difference. First operand 434 states and 605 transitions. Second operand 3 states. [2021-10-11 02:31:18,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:18,841 INFO L93 Difference]: Finished difference Result 525 states and 727 transitions. [2021-10-11 02:31:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:18,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2021-10-11 02:31:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:18,843 INFO L225 Difference]: With dead ends: 525 [2021-10-11 02:31:18,844 INFO L226 Difference]: Without dead ends: 262 [2021-10-11 02:31:18,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 48 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 02:31:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-10-11 02:31:18,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 256. [2021-10-11 02:31:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-10-11 02:31:18,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 348 transitions. [2021-10-11 02:31:18,873 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 348 transitions. Word has length 50 [2021-10-11 02:31:18,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:18,873 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 348 transitions. [2021-10-11 02:31:18,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:18,874 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 348 transitions. [2021-10-11 02:31:18,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 02:31:18,875 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:18,875 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:19,090 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:31:19,091 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:19,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:19,091 INFO L82 PathProgramCache]: Analyzing trace with hash 2114560073, now seen corresponding path program 1 times [2021-10-11 02:31:19,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:19,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495625197] [2021-10-11 02:31:19,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:19,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:31:19,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:31:19,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:19,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495625197] [2021-10-11 02:31:19,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:19,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:19,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311862023] [2021-10-11 02:31:19,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:31:19,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:19,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:31:19,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:19,378 INFO L87 Difference]: Start difference. First operand 256 states and 348 transitions. Second operand 5 states. [2021-10-11 02:31:19,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:19,495 INFO L93 Difference]: Finished difference Result 752 states and 1014 transitions. [2021-10-11 02:31:19,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:31:19,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2021-10-11 02:31:19,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:19,499 INFO L225 Difference]: With dead ends: 752 [2021-10-11 02:31:19,499 INFO L226 Difference]: Without dead ends: 502 [2021-10-11 02:31:19,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 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 02:31:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-11 02:31:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 274. [2021-10-11 02:31:19,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-10-11 02:31:19,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 366 transitions. [2021-10-11 02:31:19,536 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 366 transitions. Word has length 51 [2021-10-11 02:31:19,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:19,536 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 366 transitions. [2021-10-11 02:31:19,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:31:19,537 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 366 transitions. [2021-10-11 02:31:19,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 02:31:19,538 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:19,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:19,756 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:31:19,757 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:19,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:19,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1478807349, now seen corresponding path program 1 times [2021-10-11 02:31:19,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:19,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1043164430] [2021-10-11 02:31:19,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:19,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:19,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:31:19,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:31:19,998 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:19,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1043164430] [2021-10-11 02:31:19,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:19,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:19,999 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595046362] [2021-10-11 02:31:19,999 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:31:19,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:20,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:31:20,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:31:20,000 INFO L87 Difference]: Start difference. First operand 274 states and 366 transitions. Second operand 4 states. [2021-10-11 02:31:20,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:20,083 INFO L93 Difference]: Finished difference Result 625 states and 835 transitions. [2021-10-11 02:31:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:31:20,084 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2021-10-11 02:31:20,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:20,086 INFO L225 Difference]: With dead ends: 625 [2021-10-11 02:31:20,087 INFO L226 Difference]: Without dead ends: 357 [2021-10-11 02:31:20,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 02:31:20,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-10-11 02:31:20,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 246. [2021-10-11 02:31:20,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2021-10-11 02:31:20,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-10-11 02:31:20,135 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 51 [2021-10-11 02:31:20,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:20,135 INFO L481 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-10-11 02:31:20,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:31:20,136 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-10-11 02:31:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-10-11 02:31:20,136 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:20,137 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:20,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:31:20,352 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:20,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1966410639, now seen corresponding path program 1 times [2021-10-11 02:31:20,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:20,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007241299] [2021-10-11 02:31:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:20,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:20,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:31:20,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:20,641 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007241299] [2021-10-11 02:31:20,641 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:20,641 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:31:20,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546077299] [2021-10-11 02:31:20,642 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:31:20,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:20,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:31:20,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:31:20,643 INFO L87 Difference]: Start difference. First operand 246 states and 324 transitions. Second operand 6 states. [2021-10-11 02:31:20,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:20,985 INFO L93 Difference]: Finished difference Result 1384 states and 1860 transitions. [2021-10-11 02:31:20,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 02:31:20,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2021-10-11 02:31:20,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:20,992 INFO L225 Difference]: With dead ends: 1384 [2021-10-11 02:31:20,992 INFO L226 Difference]: Without dead ends: 1144 [2021-10-11 02:31:20,994 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:31:20,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2021-10-11 02:31:21,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 484. [2021-10-11 02:31:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2021-10-11 02:31:21,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 630 transitions. [2021-10-11 02:31:21,074 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 630 transitions. Word has length 52 [2021-10-11 02:31:21,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:21,075 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 630 transitions. [2021-10-11 02:31:21,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:31:21,075 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 630 transitions. [2021-10-11 02:31:21,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-11 02:31:21,076 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:21,077 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:21,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:31:21,301 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:21,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:21,301 INFO L82 PathProgramCache]: Analyzing trace with hash 134497996, now seen corresponding path program 1 times [2021-10-11 02:31:21,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:21,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [513801111] [2021-10-11 02:31:21,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/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 02:31:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:21,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:21,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:21,585 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:21,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:21,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:21,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [513801111] [2021-10-11 02:31:21,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1333529449] [2021-10-11 02:31:21,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:21,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:21,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:21,977 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:21,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:22,037 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:22,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803202763] [2021-10-11 02:31:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:31:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:22,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:31:22,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:22,260 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:22,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:31:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:31:22,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:31:22,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:31:22,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991267992] [2021-10-11 02:31:22,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:31:22,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:22,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:31:22,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:31:22,322 INFO L87 Difference]: Start difference. First operand 484 states and 630 transitions. Second operand 10 states. [2021-10-11 02:31:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:25,999 INFO L93 Difference]: Finished difference Result 2371 states and 3129 transitions. [2021-10-11 02:31:25,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:31:25,999 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2021-10-11 02:31:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:26,011 INFO L225 Difference]: With dead ends: 2371 [2021-10-11 02:31:26,011 INFO L226 Difference]: Without dead ends: 1903 [2021-10-11 02:31:26,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:31:26,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1903 states. [2021-10-11 02:31:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1903 to 616. [2021-10-11 02:31:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2021-10-11 02:31:26,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 814 transitions. [2021-10-11 02:31:26,101 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 814 transitions. Word has length 53 [2021-10-11 02:31:26,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:26,102 INFO L481 AbstractCegarLoop]: Abstraction has 616 states and 814 transitions. [2021-10-11 02:31:26,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:31:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 814 transitions. [2021-10-11 02:31:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-10-11 02:31:26,103 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:26,104 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:31:26,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2021-10-11 02:31:26,730 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:26,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:26,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1809371945, now seen corresponding path program 2 times [2021-10-11 02:31:26,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:26,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1778419760] [2021-10-11 02:31:26,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:28,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:29,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:29,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:29,884 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:31:29,884 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:31:30,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2021-10-11 02:31:30,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:30 BoogieIcfgContainer [2021-10-11 02:31:30,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:30,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:30,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:30,294 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:30,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:12" (3/4) ... [2021-10-11 02:31:30,297 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:31:30,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f1cf970-22c5-486e-8d5e-8d8c89413885/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:30,478 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:30,480 INFO L168 Benchmark]: Toolchain (without parser) took 21691.48 ms. Allocated memory was 71.3 MB in the beginning and 144.7 MB in the end (delta: 73.4 MB). Free memory was 52.5 MB in the beginning and 98.2 MB in the end (delta: -45.7 MB). Peak memory consumption was 90.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,480 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 71.3 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:30,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.70 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 34.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.63 ms. Allocated memory is still 71.3 MB. Free memory was 34.5 MB in the beginning and 30.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,482 INFO L168 Benchmark]: Boogie Preprocessor took 108.41 ms. Allocated memory is still 71.3 MB. Free memory was 30.5 MB in the beginning and 51.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,482 INFO L168 Benchmark]: RCFGBuilder took 2591.37 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 50.9 MB in the beginning and 69.4 MB in the end (delta: -18.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,483 INFO L168 Benchmark]: TraceAbstraction took 18007.59 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 69.4 MB in the beginning and 48.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,483 INFO L168 Benchmark]: Witness Printer took 183.88 ms. Allocated memory is still 144.7 MB. Free memory was 48.9 MB in the beginning and 98.2 MB in the end (delta: -49.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:30,485 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 71.3 MB. Free memory is still 51.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.70 ms. Allocated memory is still 71.3 MB. Free memory was 52.2 MB in the beginning and 34.5 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 107.63 ms. Allocated memory is still 71.3 MB. Free memory was 34.5 MB in the beginning and 30.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 108.41 ms. Allocated memory is still 71.3 MB. Free memory was 30.5 MB in the beginning and 51.2 MB in the end (delta: -20.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2591.37 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 50.9 MB in the beginning and 69.4 MB in the end (delta: -18.5 MB). Peak memory consumption was 40.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18007.59 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 69.4 MB in the beginning and 48.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 67.6 MB. Max. memory is 16.1 GB. * Witness Printer took 183.88 ms. Allocated memory is still 144.7 MB. Free memory was 48.9 MB in the beginning and 98.2 MB in the end (delta: -49.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int cleanupTimeShifts = 4; [L221] int pumpRunning = 0; [L222] int systemActive = 1; [L601] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L870] int waterLevel = 1; [L871] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L123] int retValue_acc ; [L124] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] int retValue_acc ; [L864] retValue_acc = 1 [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L148] int splverifierCounter ; [L149] int tmp ; [L150] int tmp___0 ; [L151] int tmp___1 ; [L152] int tmp___2 ; [L155] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L888] COND TRUE waterLevel < 2 [L889] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L229] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L287] COND FALSE !(\read(pumpRunning)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L261] COND TRUE ! pumpRunning [L398] int retValue_acc ; [L399] int tmp ; [L400] int tmp___0 ; [L950] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L953] COND FALSE !(waterLevel < 2) [L957] retValue_acc = 0 [L958] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L404] tmp = isHighWaterSensorDry() [L406] COND FALSE !(\read(tmp)) [L409] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L411] retValue_acc = tmp___0 [L412] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L263] tmp = isHighWaterLevel() [L265] COND TRUE \read(tmp) [L317] int tmp ; [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp = isMethaneAlarm() [L323] COND FALSE !(\read(tmp)) [L312] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L876] COND TRUE waterLevel > 0 [L877] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] COND TRUE \read(pumpRunning) [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L289] tmp = isMethaneAlarm() [L291] COND FALSE !(\read(tmp)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L261] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L806] tmp = getWaterLevel() [L808] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L159] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] tmp = __VERIFIER_nondet_int() [L167] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L175] tmp___0 = __VERIFIER_nondet_int() [L177] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L185] tmp___2 = __VERIFIER_nondet_int() [L187] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L876] COND TRUE waterLevel > 0 [L877] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L236] COND TRUE \read(systemActive) [L284] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] COND TRUE \read(pumpRunning) [L342] int retValue_acc ; [L909] int retValue_acc ; [L912] retValue_acc = methaneLevelCritical [L913] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L346] retValue_acc = isMethaneLevelCritical() [L348] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L289] tmp = isMethaneAlarm() [L291] COND FALSE !(\read(tmp)) [L258] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L261] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int tmp ; [L802] int tmp___0 ; [L941] int retValue_acc ; [L944] retValue_acc = waterLevel [L945] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L806] tmp = getWaterLevel() [L808] COND TRUE tmp == 0 [L353] int retValue_acc ; [L356] retValue_acc = pumpRunning [L357] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L810] tmp___0 = isPumpRunning() [L812] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L830] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 17.7s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1309 SDtfs, 2268 SDslu, 2831 SDs, 0 SdLazy, 457 SolverSat, 98 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 673 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=11, 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, 11 MinimizatonAttempts, 2555 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 565 NumberOfCodeBlocks, 565 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 636 ConstructedInterpolants, 0 QuantifiedInterpolants, 101900 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2854 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 85/139 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...