./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE --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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e ............................................................................................................................................ 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE --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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:02:19,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:02:19,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:02:19,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:02:19,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:02:19,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:02:19,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:02:19,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:02:19,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:02:19,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:02:19,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:02:19,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:02:19,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:02:19,339 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:02:19,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:02:19,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:02:19,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:02:19,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:02:19,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:02:19,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:02:19,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:02:19,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:02:19,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:02:19,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:02:19,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:02:19,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:02:19,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:02:19,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:02:19,401 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:02:19,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:02:19,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:02:19,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:02:19,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:02:19,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:02:19,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:02:19,410 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:02:19,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:02:19,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:02:19,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:02:19,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:02:19,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:02:19,415 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:02:19,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:02:19,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:02:19,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:02:19,474 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:02:19,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:02:19,475 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:02:19,475 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:02:19,476 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:02:19,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:02:19,476 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:02:19,478 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:02:19,478 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:02:19,479 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:02:19,479 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:02:19,479 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:02:19,480 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:02:19,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:02:19,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:02:19,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:02:19,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:02:19,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:02:19,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:02:19,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:02:19,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:02:19,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:02:19,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:02:19,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:02:19,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:02:19,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:02:19,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:02:19,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:02:19,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:02:19,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:02:19,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:02:19,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:02:19,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:02:19,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:02:19,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:02:19,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:02:19,487 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2021-10-24 11:02:19,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:02:19,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:02:19,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:02:19,854 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:02:19,855 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:02:19,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2021-10-24 11:02:19,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/f6bbfde69/8bdcde07b5244085ac743d13f79afaf5/FLAGd8a610fec [2021-10-24 11:02:20,482 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:02:20,482 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2021-10-24 11:02:20,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/f6bbfde69/8bdcde07b5244085ac743d13f79afaf5/FLAGd8a610fec [2021-10-24 11:02:20,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/f6bbfde69/8bdcde07b5244085ac743d13f79afaf5 [2021-10-24 11:02:20,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:02:20,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:02:20,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:20,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:02:20,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:02:20,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:20" (1/1) ... [2021-10-24 11:02:20,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3ae204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:20, skipping insertion in model container [2021-10-24 11:02:20,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:20" (1/1) ... [2021-10-24 11:02:20,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:02:20,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:02:21,057 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c[1605,1618] [2021-10-24 11:02:21,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:21,228 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) [2021-10-24 11:02:21,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a8907c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:21, skipping insertion in model container [2021-10-24 11:02:21,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:21,230 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 11:02:21,233 INFO L168 Benchmark]: Toolchain (without parser) took 442.04 ms. Allocated memory is still 115.3 MB. Free memory was 76.6 MB in the beginning and 86.8 MB in the end (delta: -10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:21,235 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 93.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:02:21,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 436.48 ms. Allocated memory is still 115.3 MB. Free memory was 76.4 MB in the beginning and 86.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:21,240 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 115.3 MB. Free memory is still 93.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 436.48 ms. Allocated memory is still 115.3 MB. Free memory was 76.4 MB in the beginning and 86.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 506]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:02:23,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:02:23,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:02:23,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:02:23,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:02:23,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:02:23,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:02:23,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:02:23,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:02:23,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:02:23,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:02:23,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:02:23,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:02:23,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:02:23,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:02:23,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:02:23,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:02:23,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:02:23,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:02:23,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:02:23,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:02:23,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:02:23,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:02:23,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:02:23,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:02:23,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:02:23,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:02:23,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:02:23,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:02:23,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:02:23,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:02:23,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:02:23,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:02:23,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:02:23,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:02:23,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:02:23,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:02:23,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:02:23,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:02:23,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:02:23,950 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:02:23,951 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:02:23,998 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:02:23,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:02:24,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:02:24,000 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:02:24,000 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:02:24,001 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:02:24,001 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:02:24,001 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:02:24,001 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:02:24,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:02:24,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:02:24,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:02:24,005 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:02:24,005 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:02:24,005 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:02:24,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:02:24,006 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:02:24,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:02:24,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:02:24,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:02:24,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:02:24,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:02:24,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:02:24,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:02:24,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:02:24,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:02:24,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:02:24,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:02:24,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:02:24,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:02:24,009 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:02:24,010 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:02:24,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:02:24,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:02:24,011 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:02:24,011 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2021-10-24 11:02:24,435 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:02:24,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:02:24,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:02:24,471 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:02:24,471 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:02:24,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2021-10-24 11:02:24,565 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/c7bfedcc8/e247142d9be84641b6bf7a3767f62dc4/FLAG90852bc99 [2021-10-24 11:02:25,265 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:02:25,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2021-10-24 11:02:25,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/c7bfedcc8/e247142d9be84641b6bf7a3767f62dc4/FLAG90852bc99 [2021-10-24 11:02:25,488 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/data/c7bfedcc8/e247142d9be84641b6bf7a3767f62dc4 [2021-10-24 11:02:25,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:02:25,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:02:25,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:25,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:02:25,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:02:25,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:25" (1/1) ... [2021-10-24 11:02:25,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35cc9748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:25, skipping insertion in model container [2021-10-24 11:02:25,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:02:25" (1/1) ... [2021-10-24 11:02:25,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:02:25,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:02:25,817 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c[1605,1618] [2021-10-24 11:02:26,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:26,117 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 11:02:26,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:02:26,156 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c[1605,1618] [2021-10-24 11:02:26,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:26,254 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:02:26,272 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_eaffb042-90c6-4bd5-a270-5b2ac6db5765/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c[1605,1618] [2021-10-24 11:02:26,345 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:02:26,369 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:02:26,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26 WrapperNode [2021-10-24 11:02:26,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:02:26,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:02:26,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:02:26,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:02:26,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:02:26,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:02:26,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:02:26,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:02:26,515 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:02:26,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:02:26,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:02:26,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:02:26,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (1/1) ... [2021-10-24 11:02:26,581 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:02:26,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:02:26,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:02:26,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:02:26,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:02:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:02:26,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:02:26,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:02:29,303 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:02:29,303 INFO L299 CfgBuilder]: Removed 168 assume(true) statements. [2021-10-24 11:02:29,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:29 BoogieIcfgContainer [2021-10-24 11:02:29,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:02:29,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:02:29,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:02:29,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:02:29,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:02:25" (1/3) ... [2021-10-24 11:02:29,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd62c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:29, skipping insertion in model container [2021-10-24 11:02:29,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:02:26" (2/3) ... [2021-10-24 11:02:29,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd62c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:02:29, skipping insertion in model container [2021-10-24 11:02:29,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:29" (3/3) ... [2021-10-24 11:02:29,314 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2021-10-24 11:02:29,320 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:02:29,320 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 11:02:29,372 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:02:29,380 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:02:29,381 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 11:02:29,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 112 states have internal predecessors, (168), 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) [2021-10-24 11:02:29,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 11:02:29,412 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:29,413 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:02:29,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:02:29,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:29,423 INFO L82 PathProgramCache]: Analyzing trace with hash -194461515, now seen corresponding path program 1 times [2021-10-24 11:02:29,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:02:29,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1585914542] [2021-10-24 11:02:29,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:29,440 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:02:29,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:02:29,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:02:29,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:02:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:02:29,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:02:29,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:02:29,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:29,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:02:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:29,887 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:02:29,887 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1585914542] [2021-10-24 11:02:29,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1585914542] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:02:29,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:02:29,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:02:29,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908201800] [2021-10-24 11:02:29,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:02:29,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:02:29,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:02:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:02:29,916 INFO L87 Difference]: Start difference. First operand has 113 states, 109 states have (on average 1.5412844036697249) internal successors, (168), 112 states have internal predecessors, (168), 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) [2021-10-24 11:02:29,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:02:29,951 INFO L93 Difference]: Finished difference Result 220 states and 329 transitions. [2021-10-24 11:02:29,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:02:29,952 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 [2021-10-24 11:02:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:02:29,965 INFO L225 Difference]: With dead ends: 220 [2021-10-24 11:02:29,966 INFO L226 Difference]: Without dead ends: 109 [2021-10-24 11:02:29,969 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 [2021-10-24 11:02:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-24 11:02:30,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-24 11:02:30,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 106 states have (on average 1.471698113207547) internal successors, (156), 108 states have internal predecessors, (156), 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) [2021-10-24 11:02:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 156 transitions. [2021-10-24 11:02:30,019 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 156 transitions. Word has length 18 [2021-10-24 11:02:30,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:02:30,020 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 156 transitions. [2021-10-24 11:02:30,020 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) [2021-10-24 11:02:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 156 transitions. [2021-10-24 11:02:30,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 11:02:30,022 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:30,022 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:02:30,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:02:30,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:02:30,236 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:02:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:30,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1105492268, now seen corresponding path program 1 times [2021-10-24 11:02:30,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:02:30,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873097315] [2021-10-24 11:02:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:30,240 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:02:30,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:02:30,241 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:02:30,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:02:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:02:30,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:02:30,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:02:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:30,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:02:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:30,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:02:30,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873097315] [2021-10-24 11:02:30,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873097315] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:02:30,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:02:30,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:02:30,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843366118] [2021-10-24 11:02:30,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:02:30,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:02:30,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:02:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:02:30,641 INFO L87 Difference]: Start difference. First operand 109 states and 156 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) [2021-10-24 11:02:30,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:02:30,681 INFO L93 Difference]: Finished difference Result 109 states and 156 transitions. [2021-10-24 11:02:30,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 11:02:30,682 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 [2021-10-24 11:02:30,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:02:30,685 INFO L225 Difference]: With dead ends: 109 [2021-10-24 11:02:30,686 INFO L226 Difference]: Without dead ends: 47 [2021-10-24 11:02:30,687 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:02:30,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-24 11:02:30,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-24 11:02:30,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 46 states have internal predecessors, (67), 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) [2021-10-24 11:02:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 67 transitions. [2021-10-24 11:02:30,705 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 67 transitions. Word has length 19 [2021-10-24 11:02:30,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:02:30,706 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 67 transitions. [2021-10-24 11:02:30,707 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) [2021-10-24 11:02:30,707 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 67 transitions. [2021-10-24 11:02:30,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 11:02:30,711 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:30,712 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] [2021-10-24 11:02:30,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 11:02:30,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:02:30,926 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:02:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1805721692, now seen corresponding path program 1 times [2021-10-24 11:02:30,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:02:30,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946585588] [2021-10-24 11:02:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:30,928 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:02:30,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:02:30,932 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:02:30,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 11:02:31,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:02:31,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 11:02:31,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:02:31,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:31,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:02:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:31,378 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:02:31,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946585588] [2021-10-24 11:02:31,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946585588] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:02:31,379 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:02:31,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 11:02:31,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999683134] [2021-10-24 11:02:31,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 11:02:31,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:02:31,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 11:02:31,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:02:31,384 INFO L87 Difference]: Start difference. First operand 47 states and 67 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:02:31,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:02:31,456 INFO L93 Difference]: Finished difference Result 154 states and 226 transitions. [2021-10-24 11:02:31,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 11:02:31,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 11:02:31,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:02:31,462 INFO L225 Difference]: With dead ends: 154 [2021-10-24 11:02:31,462 INFO L226 Difference]: Without dead ends: 113 [2021-10-24 11:02:31,463 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 11:02:31,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-24 11:02:31,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 68. [2021-10-24 11:02:31,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 67 states have internal predecessors, (99), 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) [2021-10-24 11:02:31,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2021-10-24 11:02:31,484 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 24 [2021-10-24 11:02:31,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:02:31,485 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2021-10-24 11:02:31,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:02:31,486 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2021-10-24 11:02:31,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 11:02:31,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:31,489 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] [2021-10-24 11:02:31,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:02:31,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:02:31,712 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:02:31,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:31,713 INFO L82 PathProgramCache]: Analyzing trace with hash -820987702, now seen corresponding path program 1 times [2021-10-24 11:02:31,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:02:31,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020474882] [2021-10-24 11:02:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:31,715 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:02:31,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:02:31,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:02:31,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 11:02:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:02:31,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 11:02:31,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:02:32,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:32,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:02:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:02:32,220 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:02:32,221 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020474882] [2021-10-24 11:02:32,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2020474882] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:02:32,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:02:32,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 11:02:32,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134987567] [2021-10-24 11:02:32,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 11:02:32,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:02:32,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 11:02:32,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 11:02:32,224 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-10-24 11:02:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:02:32,688 INFO L93 Difference]: Finished difference Result 762 states and 1164 transitions. [2021-10-24 11:02:32,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 11:02:32,689 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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 [2021-10-24 11:02:32,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:02:32,696 INFO L225 Difference]: With dead ends: 762 [2021-10-24 11:02:32,696 INFO L226 Difference]: Without dead ends: 700 [2021-10-24 11:02:32,701 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 158.0ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 11:02:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2021-10-24 11:02:32,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 178. [2021-10-24 11:02:32,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 1.463276836158192) internal successors, (259), 177 states have internal predecessors, (259), 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) [2021-10-24 11:02:32,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 259 transitions. [2021-10-24 11:02:32,769 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 259 transitions. Word has length 26 [2021-10-24 11:02:32,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:02:32,769 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 259 transitions. [2021-10-24 11:02:32,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 7 states have internal predecessors, (49), 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) [2021-10-24 11:02:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 259 transitions. [2021-10-24 11:02:32,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 11:02:32,778 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:02:32,778 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, 1] [2021-10-24 11:02:32,791 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-24 11:02:32,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:02:32,992 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:02:32,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:02:32,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1430024248, now seen corresponding path program 1 times [2021-10-24 11:02:32,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:02:32,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554717007] [2021-10-24 11:02:32,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:02:32,995 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:02:32,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:02:32,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:02:33,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 11:02:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:02:34,042 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:02:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:02:35,611 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 11:02:35,611 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:02:35,613 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:02:35,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:02:35,615 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:02:35,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 11:02:35,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:02:35,823 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:02:35,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:02:35 BoogieIcfgContainer [2021-10-24 11:02:35,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:02:35,980 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:02:35,980 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:02:35,981 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:02:35,981 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:02:29" (3/4) ... [2021-10-24 11:02:35,989 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 11:02:36,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 11:02:36,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:02:36,128 INFO L168 Benchmark]: Toolchain (without parser) took 10630.05 ms. Allocated memory was 71.3 MB in the beginning and 115.3 MB in the end (delta: 44.0 MB). Free memory was 51.5 MB in the beginning and 88.1 MB in the end (delta: -36.6 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,129 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:02:36,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 868.54 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 39.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,130 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.09 ms. Allocated memory is still 71.3 MB. Free memory was 39.4 MB in the beginning and 35.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,131 INFO L168 Benchmark]: Boogie Preprocessor took 52.56 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 33.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,131 INFO L168 Benchmark]: RCFGBuilder took 2746.89 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 33.1 MB in the beginning and 46.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,132 INFO L168 Benchmark]: TraceAbstraction took 6671.77 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 52.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,132 INFO L168 Benchmark]: Witness Printer took 146.51 ms. Allocated memory is still 115.3 MB. Free memory was 52.3 MB in the beginning and 88.1 MB in the end (delta: -35.8 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:02:36,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory is still 51.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 868.54 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 39.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 134.09 ms. Allocated memory is still 71.3 MB. Free memory was 39.4 MB in the beginning and 35.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.56 ms. Allocated memory is still 71.3 MB. Free memory was 35.9 MB in the beginning and 33.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2746.89 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 33.1 MB in the beginning and 46.1 MB in the end (delta: -13.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6671.77 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 45.6 MB in the beginning and 52.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * Witness Printer took 146.51 ms. Allocated memory is still 115.3 MB. Free memory was 52.3 MB in the beginning and 88.1 MB in the end (delta: -35.8 MB). Peak memory consumption was 9.2 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: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L285] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L287] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L293] tmp = __VERIFIER_nondet_int() [L295] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L862] COND TRUE waterLevel < 2 [L863] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L267] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L85] COND TRUE \read(systemActive) [L133] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L136] COND FALSE !(\read(pumpRunning)) [L107] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L110] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] tmp___0 = getWaterLevel() [L360] COND TRUE tmp___0 == 2 [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L362] tmp___1 = isPumpRunning() [L364] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L54] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 54]: 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: 54]: 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, 113 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6450.7ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 30.5ms, AutomataDifference: 684.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 404 SDtfs, 934 SDslu, 911 SDs, 0 SdLazy, 127 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 199.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 181.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 137.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 567 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 131.5ms SsaConstructionTime, 1444.0ms SatisfiabilityAnalysisTime, 833.1ms InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 166 ConstructedInterpolants, 0 QuantifiedInterpolants, 294 SizeOfPredicates, 4 NumberOfNonLiveVariables, 793 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2021-10-24 11:02:36,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaffb042-90c6-4bd5-a270-5b2ac6db5765/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...