./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8 --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 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e ............................................................................................................................................ 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8 --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 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:36:02,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:36:02,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:36:02,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:36:02,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:36:02,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:36:02,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:36:02,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:36:02,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:36:02,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:36:02,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:36:02,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:36:02,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:36:02,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:36:02,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:36:02,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:36:02,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:36:02,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:36:02,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:36:02,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:36:02,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:36:02,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:36:02,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:36:02,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:36:02,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:36:02,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:36:02,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:36:02,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:36:02,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:36:02,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:36:02,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:36:02,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:36:02,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:36:02,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:36:02,273 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:36:02,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:36:02,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:36:02,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:36:02,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:36:02,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:36:02,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:36:02,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:36:02,329 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:36:02,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:36:02,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:36:02,331 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:36:02,331 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:36:02,332 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:36:02,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:36:02,332 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:36:02,339 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:36:02,339 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:36:02,340 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:36:02,341 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:36:02,341 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:36:02,341 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:36:02,342 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:36:02,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:36:02,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:36:02,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:36:02,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:36:02,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:36:02,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:36:02,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:36:02,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:36:02,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:36:02,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:36:02,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:36:02,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:36:02,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:36:02,345 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:36:02,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:36:02,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:36:02,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:36:02,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:36:02,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:36:02,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:36:02,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:36:02,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:36:02,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:36:02,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:36:02,350 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e [2021-10-13 07:36:02,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:36:02,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:36:02,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:36:02,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:36:02,657 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:36:02,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2021-10-13 07:36:02,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/dfbccadf4/ee8b1eeb32304d13a1904310f0ed9713/FLAGc115665ea [2021-10-13 07:36:03,263 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:36:03,263 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2021-10-13 07:36:03,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/dfbccadf4/ee8b1eeb32304d13a1904310f0ed9713/FLAGc115665ea [2021-10-13 07:36:03,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/dfbccadf4/ee8b1eeb32304d13a1904310f0ed9713 [2021-10-13 07:36:03,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:36:03,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:36:03,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:36:03,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:36:03,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:36:03,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:03" (1/1) ... [2021-10-13 07:36:03,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cea9fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:03, skipping insertion in model container [2021-10-13 07:36:03,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:03" (1/1) ... [2021-10-13 07:36:03,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:36:03,673 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:36:03,872 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-10-13 07:36:04,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:36:04,019 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) [2021-10-13 07:36:04,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5161c6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:04, skipping insertion in model container [2021-10-13 07:36:04,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:36:04,021 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:36:04,023 INFO L168 Benchmark]: Toolchain (without parser) took 411.21 ms. Allocated memory is still 98.6 MB. Free memory was 55.7 MB in the beginning and 70.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:04,024 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 73.2 MB in the end (delta: 63.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:36:04,035 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.43 ms. Allocated memory is still 98.6 MB. Free memory was 55.6 MB in the beginning and 70.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:04,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 98.6 MB. Free memory was 73.2 MB in the beginning and 73.2 MB in the end (delta: 63.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 408.43 ms. Allocated memory is still 98.6 MB. Free memory was 55.6 MB in the beginning and 70.8 MB in the end (delta: -15.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 218]: 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-4e77c04 [2021-10-13 07:36:06,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:36:06,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:36:06,416 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:36:06,417 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:36:06,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:36:06,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:36:06,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:36:06,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:36:06,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:36:06,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:36:06,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:36:06,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:36:06,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:36:06,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:36:06,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:36:06,438 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:36:06,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:36:06,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:36:06,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:36:06,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:36:06,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:36:06,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:36:06,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:36:06,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:36:06,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:36:06,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:36:06,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:36:06,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:36:06,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:36:06,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:36:06,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:36:06,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:36:06,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:36:06,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:36:06,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:36:06,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:36:06,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:36:06,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:36:06,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:36:06,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:36:06,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:36:06,528 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:36:06,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:36:06,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:36:06,530 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:36:06,531 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:36:06,531 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:36:06,531 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:36:06,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:36:06,532 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:36:06,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:36:06,535 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:36:06,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:36:06,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:36:06,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:36:06,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:36:06,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:36:06,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:36:06,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:36:06,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:36:06,537 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:36:06,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:36:06,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:36:06,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:36:06,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:36:06,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:36:06,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:36:06,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:36:06,539 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:36:06,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:36:06,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:36:06,540 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:36:06,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:36:06,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:36:06,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:36:06,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:36:06,541 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01c6094ce00b6bee5e4a1d4107850fe1bcc8c33e [2021-10-13 07:36:06,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:36:07,023 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:36:07,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:36:07,030 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:36:07,031 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:36:07,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2021-10-13 07:36:07,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/6b7b13220/94527cda828e43888779c38bffca16a2/FLAG0b91383ac [2021-10-13 07:36:07,686 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:36:07,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2021-10-13 07:36:07,713 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/6b7b13220/94527cda828e43888779c38bffca16a2/FLAG0b91383ac [2021-10-13 07:36:08,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/data/6b7b13220/94527cda828e43888779c38bffca16a2 [2021-10-13 07:36:08,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:36:08,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:36:08,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:36:08,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:36:08,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:36:08,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf9ce3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08, skipping insertion in model container [2021-10-13 07:36:08,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:36:08,113 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:36:08,248 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-10-13 07:36:08,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:36:08,514 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:36:08,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:36:08,547 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-10-13 07:36:08,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:36:08,655 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:36:08,670 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_39cc97ed-c441-4587-83bd-6cb8d60bf081/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1281,1294] [2021-10-13 07:36:08,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:36:08,740 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:36:08,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08 WrapperNode [2021-10-13 07:36:08,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:36:08,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:36:08,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:36:08,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:36:08,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:36:08,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:36:08,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:36:08,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:36:08,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:36:08,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:36:08,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:36:08,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:36:08,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (1/1) ... [2021-10-13 07:36:08,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:36:08,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:36:08,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:36:08,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:36:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:36:09,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:36:09,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:36:09,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:36:11,670 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:36:11,670 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-10-13 07:36:11,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:11 BoogieIcfgContainer [2021-10-13 07:36:11,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:36:11,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:36:11,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:36:11,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:36:11,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:36:08" (1/3) ... [2021-10-13 07:36:11,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689a99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:11, skipping insertion in model container [2021-10-13 07:36:11,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:36:08" (2/3) ... [2021-10-13 07:36:11,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7689a99e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:36:11, skipping insertion in model container [2021-10-13 07:36:11,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:11" (3/3) ... [2021-10-13 07:36:11,682 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2021-10-13 07:36:11,688 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:36:11,689 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 07:36:11,741 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:36:11,748 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, mConcurrency=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 [2021-10-13 07:36:11,748 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 07:36:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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) [2021-10-13 07:36:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:36:11,775 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:11,776 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:36:11,777 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:11,783 INFO L82 PathProgramCache]: Analyzing trace with hash 301971860, now seen corresponding path program 1 times [2021-10-13 07:36:11,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:11,798 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870995332] [2021-10-13 07:36:11,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:11,799 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:11,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:11,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:11,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:36:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:12,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:36:12,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:12,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:12,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:12,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:12,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870995332] [2021-10-13 07:36:12,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870995332] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:36:12,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:36:12,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:36:12,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269758000] [2021-10-13 07:36:12,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:36:12,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:36:12,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:36:12,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:36:12,279 INFO L87 Difference]: Start difference. First operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 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) [2021-10-13 07:36:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:36:12,315 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2021-10-13 07:36:12,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:36:12,316 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 [2021-10-13 07:36:12,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:36:12,328 INFO L225 Difference]: With dead ends: 268 [2021-10-13 07:36:12,328 INFO L226 Difference]: Without dead ends: 133 [2021-10-13 07:36:12,332 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 [2021-10-13 07:36:12,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-13 07:36:12,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-10-13 07:36:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.476923076923077) internal successors, (192), 132 states have internal predecessors, (192), 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) [2021-10-13 07:36:12,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2021-10-13 07:36:12,383 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 18 [2021-10-13 07:36:12,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:36:12,383 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2021-10-13 07:36:12,383 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) [2021-10-13 07:36:12,384 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2021-10-13 07:36:12,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:36:12,385 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:12,386 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:36:12,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:36:12,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:12,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:12,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:12,599 INFO L82 PathProgramCache]: Analyzing trace with hash -609058893, now seen corresponding path program 1 times [2021-10-13 07:36:12,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:12,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1628514305] [2021-10-13 07:36:12,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:12,600 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:12,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:12,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:12,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:36:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:12,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:36:12,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:12,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:13,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:13,020 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:13,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1628514305] [2021-10-13 07:36:13,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1628514305] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:36:13,021 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:36:13,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:36:13,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701974160] [2021-10-13 07:36:13,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:36:13,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:36:13,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:36:13,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:36:13,025 INFO L87 Difference]: Start difference. First operand 133 states and 192 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) [2021-10-13 07:36:13,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:36:13,046 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2021-10-13 07:36:13,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:36:13,047 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 [2021-10-13 07:36:13,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:36:13,048 INFO L225 Difference]: With dead ends: 133 [2021-10-13 07:36:13,048 INFO L226 Difference]: Without dead ends: 55 [2021-10-13 07:36:13,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:36:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-13 07:36:13,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-13 07:36:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 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) [2021-10-13 07:36:13,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-10-13 07:36:13,059 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-10-13 07:36:13,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:36:13,059 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-10-13 07:36:13,059 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) [2021-10-13 07:36:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-10-13 07:36:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:36:13,061 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:13,061 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] [2021-10-13 07:36:13,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:36:13,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:13,273 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:13,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:13,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1636802596, now seen corresponding path program 1 times [2021-10-13 07:36:13,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:13,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757336538] [2021-10-13 07:36:13,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:13,275 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:13,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:13,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:13,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:36:13,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:13,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:36:13,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:13,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:13,700 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:13,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757336538] [2021-10-13 07:36:13,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757336538] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:36:13,702 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:36:13,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:36:13,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56125544] [2021-10-13 07:36:13,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:36:13,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:36:13,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:36:13,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:36:13,708 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-13 07:36:13,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:36:13,758 INFO L93 Difference]: Finished difference Result 178 states and 262 transitions. [2021-10-13 07:36:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:36:13,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 [2021-10-13 07:36:13,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:36:13,761 INFO L225 Difference]: With dead ends: 178 [2021-10-13 07:36:13,761 INFO L226 Difference]: Without dead ends: 129 [2021-10-13 07:36:13,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:36:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-10-13 07:36:13,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 76. [2021-10-13 07:36:13,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.48) internal successors, (111), 75 states have internal predecessors, (111), 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) [2021-10-13 07:36:13,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 111 transitions. [2021-10-13 07:36:13,775 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 111 transitions. Word has length 24 [2021-10-13 07:36:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:36:13,776 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 111 transitions. [2021-10-13 07:36:13,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-13 07:36:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 111 transitions. [2021-10-13 07:36:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:36:13,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:13,778 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] [2021-10-13 07:36:13,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:36:13,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:13,986 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:13,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1444892134, now seen corresponding path program 1 times [2021-10-13 07:36:13,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:13,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707815716] [2021-10-13 07:36:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:13,988 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:13,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:13,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:36:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:14,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:36:14,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:14,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:14,366 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:14,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707815716] [2021-10-13 07:36:14,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707815716] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:36:14,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:36:14,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:36:14,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509345611] [2021-10-13 07:36:14,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:36:14,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:36:14,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:36:14,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:36:14,369 INFO L87 Difference]: Start difference. First operand 76 states and 111 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) [2021-10-13 07:36:14,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:36:14,429 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2021-10-13 07:36:14,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:36:14,430 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 [2021-10-13 07:36:14,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:36:14,432 INFO L225 Difference]: With dead ends: 169 [2021-10-13 07:36:14,432 INFO L226 Difference]: Without dead ends: 99 [2021-10-13 07:36:14,433 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:36:14,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-13 07:36:14,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-13 07:36:14,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.4375) internal successors, (138), 96 states have internal predecessors, (138), 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) [2021-10-13 07:36:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 138 transitions. [2021-10-13 07:36:14,495 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 138 transitions. Word has length 26 [2021-10-13 07:36:14,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:36:14,496 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 138 transitions. [2021-10-13 07:36:14,496 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) [2021-10-13 07:36:14,496 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2021-10-13 07:36:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-13 07:36:14,502 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:14,502 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] [2021-10-13 07:36:14,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 07:36:14,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:14,716 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:14,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:14,716 INFO L82 PathProgramCache]: Analyzing trace with hash 266687089, now seen corresponding path program 1 times [2021-10-13 07:36:14,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:14,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1095673253] [2021-10-13 07:36:14,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:14,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:14,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:14,718 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:14,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:36:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:36:14,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:36:14,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:36:15,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:15,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:36:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:36:15,217 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:36:15,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1095673253] [2021-10-13 07:36:15,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1095673253] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:36:15,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:36:15,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 07:36:15,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597559702] [2021-10-13 07:36:15,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:36:15,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:36:15,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:36:15,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:36:15,219 INFO L87 Difference]: Start difference. First operand 97 states and 138 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) [2021-10-13 07:36:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:36:15,720 INFO L93 Difference]: Finished difference Result 1073 states and 1567 transitions. [2021-10-13 07:36:15,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 07:36:15,721 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 [2021-10-13 07:36:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:36:15,730 INFO L225 Difference]: With dead ends: 1073 [2021-10-13 07:36:15,730 INFO L226 Difference]: Without dead ends: 982 [2021-10-13 07:36:15,735 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 152.7ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 07:36:15,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2021-10-13 07:36:15,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 247. [2021-10-13 07:36:15,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 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) [2021-10-13 07:36:15,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2021-10-13 07:36:15,810 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 27 [2021-10-13 07:36:15,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:36:15,811 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2021-10-13 07:36:15,811 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) [2021-10-13 07:36:15,811 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2021-10-13 07:36:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-13 07:36:15,815 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:36:15,815 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] [2021-10-13 07:36:15,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:36:16,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:16,030 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:36:16,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:36:16,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1433576653, now seen corresponding path program 1 times [2021-10-13 07:36:16,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:36:16,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837793184] [2021-10-13 07:36:16,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:36:16,032 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:36:16,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:36:16,033 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:36:16,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:36:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:36:17,169 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:36:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:36:18,586 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 07:36:18,586 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:36:18,587 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:36:18,589 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:36:18,590 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:36:18,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:36:18,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:36:18,816 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:36:18,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:36:18 BoogieIcfgContainer [2021-10-13 07:36:18,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:36:18,946 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:36:18,946 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:36:18,947 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:36:18,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:36:11" (3/4) ... [2021-10-13 07:36:18,950 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 07:36:19,065 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:36:19,065 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:36:19,067 INFO L168 Benchmark]: Toolchain (without parser) took 11032.84 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 53.1 MB in the beginning and 38.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 36.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,068 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:36:19,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.24 ms. Allocated memory is still 75.5 MB. Free memory was 52.9 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,069 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.68 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 40.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,069 INFO L168 Benchmark]: Boogie Preprocessor took 64.88 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 37.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,070 INFO L168 Benchmark]: RCFGBuilder took 2767.83 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 37.5 MB in the beginning and 68.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,070 INFO L168 Benchmark]: TraceAbstraction took 7270.77 ms. Allocated memory is still 96.5 MB. Free memory was 67.7 MB in the beginning and 50.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,071 INFO L168 Benchmark]: Witness Printer took 119.35 ms. Allocated memory is still 96.5 MB. Free memory was 50.1 MB in the beginning and 38.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:36:19,073 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 54.5 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 706.24 ms. Allocated memory is still 75.5 MB. Free memory was 52.9 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.68 ms. Allocated memory is still 75.5 MB. Free memory was 44.6 MB in the beginning and 40.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.88 ms. Allocated memory is still 75.5 MB. Free memory was 40.6 MB in the beginning and 37.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2767.83 ms. Allocated memory was 75.5 MB in the beginning and 96.5 MB in the end (delta: 21.0 MB). Free memory was 37.5 MB in the beginning and 68.2 MB in the end (delta: -30.7 MB). Peak memory consumption was 12.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7270.77 ms. Allocated memory is still 96.5 MB. Free memory was 67.7 MB in the beginning and 50.3 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Witness Printer took 119.35 ms. Allocated memory is still 96.5 MB. Free memory was 50.1 MB in the beginning and 38.7 MB in the end (delta: 11.4 MB). Peak memory consumption was 12.6 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: 46]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L51] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L631] int pumpRunning = 0; [L632] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L132] int retValue_acc ; [L133] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L181] int retValue_acc ; [L184] retValue_acc = 1 [L185] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L139] tmp = valid_product() [L141] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L558] int splverifierCounter ; [L559] int tmp ; [L560] int tmp___0 ; [L561] int tmp___1 ; [L562] int tmp___2 ; [L565] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L569] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L575] tmp = __VERIFIER_nondet_int() [L577] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L861] COND TRUE waterLevel < 2 [L862] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L585] tmp___0 = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp___2 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___2)) [L601] tmp___1 = __VERIFIER_nondet_int() [L603] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L830] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L639] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L646] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L938] int tmp ; [L939] int tmp___0 ; [L940] int tmp___1 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L944] tmp = isMethaneLevelCritical() [L946] COND FALSE !(\read(tmp)) [L914] int retValue_acc ; [L917] retValue_acc = waterLevel [L918] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L950] tmp___0 = getWaterLevel() [L952] COND TRUE tmp___0 == 2 [L763] int retValue_acc ; [L766] retValue_acc = pumpRunning [L767] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L954] tmp___1 = isPumpRunning() [L956] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L46] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 46]: 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: 46]: 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, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7075.7ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 25.7ms, AutomataDifference: 749.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 558 SDtfs, 1107 SDslu, 1366 SDs, 0 SdLazy, 199 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 240.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 176.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred 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: 194.5ms AutomataMinimizationTime, 5 MinimizatonAttempts, 790 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 158.6ms SsaConstructionTime, 1612.8ms SatisfiabilityAnalysisTime, 1034.5ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 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! [2021-10-13 07:36:19,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cc97ed-c441-4587-83bd-6cb8d60bf081/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...