./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw --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 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b ............................................................................................................................................ 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_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw --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 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-e943c26 [2021-10-20 05:34:25,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:34:25,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:34:25,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:34:25,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:34:25,128 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:34:25,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:34:25,136 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:34:25,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:34:25,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:34:25,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:34:25,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:34:25,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:34:25,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:34:25,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:34:25,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:34:25,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:34:25,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:34:25,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:34:25,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:34:25,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:34:25,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:34:25,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:34:25,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:34:25,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:34:25,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:34:25,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:34:25,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:34:25,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:34:25,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:34:25,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:34:25,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:34:25,203 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:34:25,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:34:25,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:34:25,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:34:25,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:34:25,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:34:25,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:34:25,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:34:25,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:34:25,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:34:25,262 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:34:25,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:34:25,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:34:25,264 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:34:25,265 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:34:25,265 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:34:25,265 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:34:25,266 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:34:25,266 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:34:25,266 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:34:25,267 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:34:25,268 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:34:25,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:34:25,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:34:25,268 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:34:25,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:34:25,270 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:34:25,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:34:25,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:34:25,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:34:25,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:34:25,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:34:25,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:34:25,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:34:25,272 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:34:25,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:34:25,272 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:34:25,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:34:25,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:34:25,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:34:25,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:34:25,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:34:25,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:34:25,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:34:25,275 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:34:25,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:34:25,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:34:25,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:34:25,276 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:34:25,276 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_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2021-10-20 05:34:25,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:34:25,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:34:25,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:34:25,605 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:34:25,606 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:34:25,607 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-20 05:34:25,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/6f1a9f072/c445d7f959ba4c40a6ce458e3494bcce/FLAGb7f378c84 [2021-10-20 05:34:26,447 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:34:26,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-20 05:34:26,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/6f1a9f072/c445d7f959ba4c40a6ce458e3494bcce/FLAGb7f378c84 [2021-10-20 05:34:26,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/6f1a9f072/c445d7f959ba4c40a6ce458e3494bcce [2021-10-20 05:34:26,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:34:26,692 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:34:26,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:34:26,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:34:26,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:34:26,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:34:26" (1/1) ... [2021-10-20 05:34:26,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2332bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:26, skipping insertion in model container [2021-10-20 05:34:26,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:34:26" (1/1) ... [2021-10-20 05:34:26,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:34:26,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:34:27,127 WARN L228 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_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2021-10-20 05:34:27,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:34:27,196 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) [2021-10-20 05:34:27,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4206cdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:27, skipping insertion in model container [2021-10-20 05:34:27,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:34:27,198 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:34:27,201 INFO L168 Benchmark]: Toolchain (without parser) took 507.65 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 87.7 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:27,202 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory was 42.8 MB in the beginning and 42.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:34:27,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 490.15 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 87.7 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:27,206 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 86.0 MB. Free memory was 42.8 MB in the beginning and 42.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 490.15 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 87.7 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 437]: 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 0.2.1-dev-e943c26 [2021-10-20 05:34:29,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:34:29,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:34:29,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:34:29,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:34:29,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:34:29,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:34:29,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:34:29,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:34:29,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:34:29,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:34:29,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:34:29,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:34:29,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:34:29,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:34:29,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:34:29,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:34:29,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:34:29,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:34:29,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:34:29,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:34:29,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:34:29,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:34:29,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:34:29,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:34:29,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:34:29,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:34:29,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:34:29,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:34:29,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:34:29,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:34:29,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:34:29,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:34:29,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:34:29,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:34:29,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:34:29,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:34:29,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:34:29,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:34:29,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:34:29,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:34:29,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:34:29,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:34:29,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:34:29,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:34:29,995 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:34:29,995 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:34:29,996 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:34:29,996 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:34:29,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:34:29,996 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:34:29,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:34:29,999 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:34:30,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:34:30,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:34:30,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:34:30,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:34:30,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:34:30,001 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:34:30,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:34:30,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:34:30,002 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:34:30,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:34:30,003 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:34:30,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:34:30,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:34:30,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:34:30,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:34:30,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:34:30,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:34:30,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:34:30,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:34:30,005 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:34:30,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:34:30,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:34:30,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:34:30,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:34:30,006 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_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2021-10-20 05:34:30,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:34:30,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:34:30,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:34:30,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:34:30,472 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:34:30,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-20 05:34:30,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/1806f1fbe/dd5a53e4f2fe43b2ba8ac50161c35c24/FLAG32b5b141c [2021-10-20 05:34:31,240 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:34:31,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2021-10-20 05:34:31,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/1806f1fbe/dd5a53e4f2fe43b2ba8ac50161c35c24/FLAG32b5b141c [2021-10-20 05:34:31,480 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/data/1806f1fbe/dd5a53e4f2fe43b2ba8ac50161c35c24 [2021-10-20 05:34:31,482 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:34:31,484 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:34:31,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:34:31,486 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:34:31,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:34:31,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:34:31" (1/1) ... [2021-10-20 05:34:31,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0f04df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:31, skipping insertion in model container [2021-10-20 05:34:31,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:34:31" (1/1) ... [2021-10-20 05:34:31,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:34:31,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:34:32,047 WARN L228 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_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2021-10-20 05:34:32,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:34:32,108 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:34:32,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:34:32,208 WARN L228 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_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2021-10-20 05:34:32,220 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:34:32,226 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:34:32,284 WARN L228 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_b1773b21-7240-40de-a8c1-79c7e9626df8/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2021-10-20 05:34:32,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:34:32,319 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:34:32,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32 WrapperNode [2021-10-20 05:34:32,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:34:32,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:34:32,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:34:32,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:34:32,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:34:32,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:34:32,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:34:32,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:34:32,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:34:32,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:34:32,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:34:32,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:34:32,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (1/1) ... [2021-10-20 05:34:32,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:34:32,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:34:32,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:34:32,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:34:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:34:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:34:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:34:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:34:35,339 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:34:35,339 INFO L299 CfgBuilder]: Removed 204 assume(true) statements. [2021-10-20 05:34:35,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:34:35 BoogieIcfgContainer [2021-10-20 05:34:35,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:34:35,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:34:35,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:34:35,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:34:35,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:34:31" (1/3) ... [2021-10-20 05:34:35,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc993b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:34:35, skipping insertion in model container [2021-10-20 05:34:35,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:34:32" (2/3) ... [2021-10-20 05:34:35,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bc993b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:34:35, skipping insertion in model container [2021-10-20 05:34:35,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:34:35" (3/3) ... [2021-10-20 05:34:35,351 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2021-10-20 05:34:35,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:34:35,358 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:34:35,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:34:35,415 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:34:35,415 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:34:35,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:34:35,453 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:35,457 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:34:35,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:35,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:35,469 INFO L82 PathProgramCache]: Analyzing trace with hash -101624794, now seen corresponding path program 1 times [2021-10-20 05:34:35,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:35,485 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103128871] [2021-10-20 05:34:35,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:35,487 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:35,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:35,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:35,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:34:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:34:35,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:34:35,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:34:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:35,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:34:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:35,946 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:34:35,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103128871] [2021-10-20 05:34:35,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103128871] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:34:35,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:34:35,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:34:35,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133001039] [2021-10-20 05:34:35,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:34:35,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:34:35,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:34:35,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:34:35,981 INFO L87 Difference]: Start difference. First operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:34:36,026 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2021-10-20 05:34:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:34:36,028 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 05:34:36,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:34:36,039 INFO L225 Difference]: With dead ends: 280 [2021-10-20 05:34:36,039 INFO L226 Difference]: Without dead ends: 139 [2021-10-20 05:34:36,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:34:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-20 05:34:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-20 05:34:36,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-10-20 05:34:36,097 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2021-10-20 05:34:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:34:36,097 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-10-20 05:34:36,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-10-20 05:34:36,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:34:36,100 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:36,100 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:34:36,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:36,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:36,314 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:36,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:36,315 INFO L82 PathProgramCache]: Analyzing trace with hash 524834626, now seen corresponding path program 1 times [2021-10-20 05:34:36,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:36,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355145097] [2021-10-20 05:34:36,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:36,317 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:36,318 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:36,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:34:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:34:36,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:34:36,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:34:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:36,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:34:36,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:36,726 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:34:36,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355145097] [2021-10-20 05:34:36,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355145097] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:34:36,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:34:36,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:34:36,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945012850] [2021-10-20 05:34:36,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:34:36,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:34:36,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:34:36,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:34:36,731 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:34:36,750 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2021-10-20 05:34:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:34:36,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-20 05:34:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:34:36,752 INFO L225 Difference]: With dead ends: 139 [2021-10-20 05:34:36,752 INFO L226 Difference]: Without dead ends: 57 [2021-10-20 05:34:36,753 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:34:36,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-20 05:34:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-20 05:34:36,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-20 05:34:36,761 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-20 05:34:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:34:36,761 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-20 05:34:36,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:36,762 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-20 05:34:36,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 05:34:36,763 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:36,763 INFO L512 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] [2021-10-20 05:34:36,780 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:36,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:36,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash 691260675, now seen corresponding path program 1 times [2021-10-20 05:34:36,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:36,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474073736] [2021-10-20 05:34:36,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:36,979 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:36,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:36,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:36,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:34:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:34:37,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:34:37,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:34:37,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:37,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:34:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:37,388 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:34:37,389 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474073736] [2021-10-20 05:34:37,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [474073736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:34:37,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:34:37,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:34:37,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817491017] [2021-10-20 05:34:37,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:34:37,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:34:37,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:34:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:34:37,398 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:37,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:34:37,489 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2021-10-20 05:34:37,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:34:37,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-20 05:34:37,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:34:37,497 INFO L225 Difference]: With dead ends: 184 [2021-10-20 05:34:37,498 INFO L226 Difference]: Without dead ends: 133 [2021-10-20 05:34:37,502 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:34:37,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-20 05:34:37,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2021-10-20 05:34:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:37,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2021-10-20 05:34:37,528 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2021-10-20 05:34:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:34:37,528 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2021-10-20 05:34:37,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2021-10-20 05:34:37,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 05:34:37,533 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:37,533 INFO L512 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] [2021-10-20 05:34:37,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:37,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:37,755 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:37,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:37,755 INFO L82 PathProgramCache]: Analyzing trace with hash 2134675258, now seen corresponding path program 1 times [2021-10-20 05:34:37,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:37,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444210525] [2021-10-20 05:34:37,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:37,757 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:37,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:37,759 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:37,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:34:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:34:37,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:34:37,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:34:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:38,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:34:38,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:38,120 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:34:38,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444210525] [2021-10-20 05:34:38,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444210525] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:34:38,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:34:38,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-20 05:34:38,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466347853] [2021-10-20 05:34:38,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:34:38,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:34:38,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:34:38,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:34:38,124 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:34:38,214 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2021-10-20 05:34:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:34:38,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-20 05:34:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:34:38,217 INFO L225 Difference]: With dead ends: 173 [2021-10-20 05:34:38,217 INFO L226 Difference]: Without dead ends: 101 [2021-10-20 05:34:38,218 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:34:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-20 05:34:38,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-20 05:34:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:38,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-20 05:34:38,246 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2021-10-20 05:34:38,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:34:38,247 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-20 05:34:38,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:38,248 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-20 05:34:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-20 05:34:38,253 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:38,254 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:34:38,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:38,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:38,468 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:38,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:38,469 INFO L82 PathProgramCache]: Analyzing trace with hash 127920088, now seen corresponding path program 1 times [2021-10-20 05:34:38,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:38,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583588736] [2021-10-20 05:34:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:38,470 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:38,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:38,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:38,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:34:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:34:38,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:34:38,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:34:38,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:38,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:34:39,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:34:39,053 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:34:39,053 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583588736] [2021-10-20 05:34:39,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583588736] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:34:39,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:34:39,054 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:34:39,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981416910] [2021-10-20 05:34:39,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:34:39,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:34:39,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:34:39,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:34:39,056 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:39,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:34:39,594 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2021-10-20 05:34:39,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-20 05:34:39,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-20 05:34:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:34:39,602 INFO L225 Difference]: With dead ends: 1099 [2021-10-20 05:34:39,603 INFO L226 Difference]: Without dead ends: 1006 [2021-10-20 05:34:39,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 182.6ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:34:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-20 05:34:39,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2021-10-20 05:34:39,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.412) internal successors, (353), 250 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:39,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2021-10-20 05:34:39,679 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2021-10-20 05:34:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:34:39,680 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2021-10-20 05:34:39,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:34:39,681 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2021-10-20 05:34:39,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-20 05:34:39,685 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:34:39,685 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:34:39,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:39,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:39,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:34:39,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:34:39,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1572343654, now seen corresponding path program 1 times [2021-10-20 05:34:39,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:34:39,910 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955562196] [2021-10-20 05:34:39,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:34:39,910 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:34:39,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:34:39,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:34:39,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-20 05:34:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:34:41,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:34:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:34:43,419 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:34:43,419 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:34:43,421 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:34:43,430 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:34:43,431 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:34:43,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:34:43,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:34:43,660 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:34:43,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:34:43 BoogieIcfgContainer [2021-10-20 05:34:43,797 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:34:43,798 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:34:43,798 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:34:43,799 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:34:43,799 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:34:35" (3/4) ... [2021-10-20 05:34:43,801 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:34:43,891 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:34:43,891 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:34:43,893 INFO L168 Benchmark]: Toolchain (without parser) took 12407.89 ms. Allocated memory was 58.7 MB in the beginning and 94.4 MB in the end (delta: 35.7 MB). Free memory was 36.4 MB in the beginning and 49.1 MB in the end (delta: -12.7 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,893 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:34:43,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.25 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.1 MB in the beginning and 45.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.39 ms. Allocated memory is still 77.6 MB. Free memory was 45.6 MB in the beginning and 41.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,895 INFO L168 Benchmark]: Boogie Preprocessor took 54.67 ms. Allocated memory is still 77.6 MB. Free memory was 41.4 MB in the beginning and 38.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,896 INFO L168 Benchmark]: RCFGBuilder took 2887.90 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 35.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,897 INFO L168 Benchmark]: TraceAbstraction took 8453.61 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 34.6 MB in the beginning and 61.1 MB in the end (delta: -26.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,897 INFO L168 Benchmark]: Witness Printer took 93.06 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 49.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:34:43,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 40.4 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 834.25 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.1 MB in the beginning and 45.6 MB in the end (delta: -9.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.39 ms. Allocated memory is still 77.6 MB. Free memory was 45.6 MB in the beginning and 41.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.67 ms. Allocated memory is still 77.6 MB. Free memory was 41.4 MB in the beginning and 38.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2887.90 ms. Allocated memory is still 77.6 MB. Free memory was 38.4 MB in the beginning and 35.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 16.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8453.61 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 34.6 MB in the beginning and 61.1 MB in the end (delta: -26.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 93.06 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 49.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 779]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L134] int pumpRunning = 0; [L135] int systemActive = 1; [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L822] int waterLevel = 1; [L823] int methaneLevelCritical = 0; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] COND TRUE waterLevel < 2 [L841] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L353] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L360] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L388] tmp___0 = getWaterLevel() [L390] COND TRUE tmp___0 == 2 [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L392] tmp___1 = isPumpRunning() [L394] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L779] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 779]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 779]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8250.8ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 39.0ms, AutomataDifference: 862.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1582 SDslu, 1013 SDs, 0 SdLazy, 170 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 291.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 206.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 172.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 168.6ms SsaConstructionTime, 2170.5ms SatisfiabilityAnalysisTime, 1039.8ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 4 NumberOfNonLiveVariables, 997 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:34:43,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1773b21-7240-40de-a8c1-79c7e9626df8/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...