./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.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_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a ............................................................................................................................................ 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_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:16:34,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:16:34,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:16:34,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:16:34,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:16:34,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:16:34,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:16:34,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:16:34,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:16:34,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:16:34,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:16:34,337 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:16:34,338 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:16:34,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:16:34,345 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:16:34,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:16:34,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:16:34,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:16:34,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:16:34,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:16:34,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:16:34,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:16:34,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:16:34,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:16:34,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:16:34,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:16:34,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:16:34,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:16:34,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:16:34,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:16:34,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:16:34,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:16:34,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:16:34,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:16:34,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:16:34,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:16:34,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:16:34,408 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:16:34,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:16:34,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:16:34,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:16:34,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:16:34,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:16:34,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:16:34,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:16:34,475 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:16:34,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:16:34,476 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:16:34,476 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:16:34,476 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:16:34,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:16:34,477 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:16:34,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:16:34,478 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:16:34,478 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:16:34,478 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:16:34,478 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:16:34,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:16:34,480 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:16:34,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:16:34,480 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:16:34,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:16:34,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:16:34,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:16:34,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:16:34,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:16:34,482 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:16:34,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:16:34,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:16:34,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:16:34,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:16:34,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:16:34,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:34,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:16:34,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:16:34,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:16:34,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:16:34,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:16:34,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:16:34,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:16:34,487 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:16:34,487 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_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-10-20 05:16:34,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:16:34,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:16:34,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:16:34,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:16:34,869 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:16:34,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-10-20 05:16:34,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/15adc9c6a/80b037cff25e4eb8800778072e64c914/FLAGf797bd132 [2021-10-20 05:16:35,569 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:16:35,569 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-10-20 05:16:35,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/15adc9c6a/80b037cff25e4eb8800778072e64c914/FLAGf797bd132 [2021-10-20 05:16:35,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/15adc9c6a/80b037cff25e4eb8800778072e64c914 [2021-10-20 05:16:35,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:16:35,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:16:35,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:35,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:16:35,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:16:35,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:35" (1/1) ... [2021-10-20 05:16:35,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bfccd1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:35, skipping insertion in model container [2021-10-20 05:16:35,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:35" (1/1) ... [2021-10-20 05:16:35,861 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:16:35,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:36,163 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_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-10-20 05:16:36,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:36,363 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-20 05:16:36,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7192a38f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:36, skipping insertion in model container [2021-10-20 05:16:36,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:36,366 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:16:36,369 INFO L168 Benchmark]: Toolchain (without parser) took 528.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.8 MB in the beginning and 85.2 MB in the end (delta: -29.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:36,371 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:36,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 525.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 85.2 MB in the end (delta: -29.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:36,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 525.46 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.5 MB in the beginning and 85.2 MB in the end (delta: -29.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 125]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:16:39,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:16:39,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:16:39,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:16:39,222 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:16:39,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:16:39,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:16:39,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:16:39,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:16:39,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:16:39,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:16:39,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:16:39,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:16:39,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:16:39,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:16:39,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:16:39,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:16:39,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:16:39,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:16:39,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:16:39,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:16:39,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:16:39,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:16:39,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:16:39,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:16:39,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:16:39,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:16:39,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:16:39,316 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:16:39,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:16:39,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:16:39,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:16:39,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:16:39,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:16:39,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:16:39,324 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:16:39,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:16:39,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:16:39,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:16:39,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:16:39,329 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:16:39,336 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:16:39,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:16:39,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:16:39,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:16:39,396 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:16:39,396 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:16:39,396 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:16:39,397 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:16:39,397 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:16:39,397 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:16:39,399 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:16:39,400 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:16:39,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:16:39,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:16:39,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:16:39,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:16:39,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:16:39,402 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:16:39,402 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:16:39,403 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:16:39,403 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:16:39,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:16:39,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:16:39,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:16:39,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:16:39,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:16:39,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:16:39,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:39,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:16:39,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:16:39,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:16:39,406 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:16:39,406 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:16:39,407 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:16:39,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:16:39,408 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:16:39,408 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_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d126ee18ecb92c3c690e8a34ad047b6b98e7a02d578302f03541b84dbf3857a [2021-10-20 05:16:39,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:16:39,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:16:39,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:16:39,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:16:39,948 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:16:39,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-10-20 05:16:40,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/c2d1927ef/c96e773b52c24c9c849d88ad1913b1b0/FLAG65886e96b [2021-10-20 05:16:40,791 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:16:40,803 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c [2021-10-20 05:16:40,834 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/c2d1927ef/c96e773b52c24c9c849d88ad1913b1b0/FLAG65886e96b [2021-10-20 05:16:41,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/data/c2d1927ef/c96e773b52c24c9c849d88ad1913b1b0 [2021-10-20 05:16:41,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:16:41,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:16:41,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:41,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:16:41,049 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:16:41,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605626b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41, skipping insertion in model container [2021-10-20 05:16:41,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:16:41,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:41,291 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_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-10-20 05:16:41,528 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:41,550 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:16:41,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:16:41,585 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_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-10-20 05:16:41,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:41,669 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:16:41,686 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_38230c36-ddda-4195-9cc8-049199088ba6/sv-benchmarks/c/product-lines/minepump_spec3_product02.cil.c[2141,2154] [2021-10-20 05:16:41,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:16:41,779 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:16:41,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41 WrapperNode [2021-10-20 05:16:41,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:16:41,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:41,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:16:41,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:16:41,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:16:41,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:16:41,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:16:41,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:16:41,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:16:41,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:16:41,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:16:41,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:16:41,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (1/1) ... [2021-10-20 05:16:41,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:16:41,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:16:41,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:16:41,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:16:42,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:16:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:16:42,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:16:42,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:16:45,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:16:45,239 INFO L299 CfgBuilder]: Removed 74 assume(true) statements. [2021-10-20 05:16:45,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:45 BoogieIcfgContainer [2021-10-20 05:16:45,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:16:45,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:16:45,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:16:45,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:16:45,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:16:41" (1/3) ... [2021-10-20 05:16:45,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0542b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:45, skipping insertion in model container [2021-10-20 05:16:45,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:16:41" (2/3) ... [2021-10-20 05:16:45,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f0542b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:16:45, skipping insertion in model container [2021-10-20 05:16:45,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:45" (3/3) ... [2021-10-20 05:16:45,254 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2021-10-20 05:16:45,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:16:45,261 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:16:45,332 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:16:45,342 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:16:45,343 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:16:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 59 states have (on average 1.576271186440678) internal successors, (93), 62 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:45,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:16:45,392 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:45,394 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:16:45,395 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:45,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:45,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1626458267, now seen corresponding path program 1 times [2021-10-20 05:16:45,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:16:45,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997007821] [2021-10-20 05:16:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:45,419 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:16:45,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:16:45,420 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:16:45,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:16:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:16:45,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:16:45,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:16:45,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:45,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:16:45,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:45,957 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:16:45,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997007821] [2021-10-20 05:16:45,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997007821] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:16:45,958 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:16:45,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:16:45,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570148078] [2021-10-20 05:16:45,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:16:45,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:16:45,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:16:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:16:45,995 INFO L87 Difference]: Start difference. First operand has 63 states, 59 states have (on average 1.576271186440678) internal successors, (93), 62 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:16:46,045 INFO L93 Difference]: Finished difference Result 120 states and 179 transitions. [2021-10-20 05:16:46,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:16:46,047 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 05:16:46,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:16:46,060 INFO L225 Difference]: With dead ends: 120 [2021-10-20 05:16:46,060 INFO L226 Difference]: Without dead ends: 59 [2021-10-20 05:16:46,063 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:16:46,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-10-20 05:16:46,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-20 05:16:46,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 56 states have (on average 1.4464285714285714) internal successors, (81), 58 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-10-20 05:16:46,107 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2021-10-20 05:16:46,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:16:46,108 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-20 05:16:46,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,108 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2021-10-20 05:16:46,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:16:46,110 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:46,110 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:16:46,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:46,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:16:46,316 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:46,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:46,317 INFO L82 PathProgramCache]: Analyzing trace with hash 715427514, now seen corresponding path program 1 times [2021-10-20 05:16:46,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:16:46,318 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731256833] [2021-10-20 05:16:46,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:46,319 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:16:46,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:16:46,321 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:16:46,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:16:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:16:46,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:16:46,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:16:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:46,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:16:46,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:46,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:16:46,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731256833] [2021-10-20 05:16:46,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731256833] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:16:46,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:16:46,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:16:46,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020187519] [2021-10-20 05:16:46,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:16:46,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:16:46,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:16:46,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:16:46,806 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:16:46,821 INFO L93 Difference]: Finished difference Result 59 states and 81 transitions. [2021-10-20 05:16:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:16:46,822 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-20 05:16:46,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:16:46,823 INFO L225 Difference]: With dead ends: 59 [2021-10-20 05:16:46,823 INFO L226 Difference]: Without dead ends: 29 [2021-10-20 05:16:46,824 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:16:46,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-20 05:16:46,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-20 05:16:46,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 28 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2021-10-20 05:16:46,831 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 19 [2021-10-20 05:16:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:16:46,832 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2021-10-20 05:16:46,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2021-10-20 05:16:46,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 05:16:46,833 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:46,834 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:16:46,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:47,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:16:47,068 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:47,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:47,071 INFO L82 PathProgramCache]: Analyzing trace with hash 930808050, now seen corresponding path program 1 times [2021-10-20 05:16:47,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:16:47,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738907694] [2021-10-20 05:16:47,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:47,074 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:16:47,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:16:47,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:16:47,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:16:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:16:47,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:16:47,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:16:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:47,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:16:47,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:16:47,693 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:16:47,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738907694] [2021-10-20 05:16:47,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738907694] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:16:47,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:16:47,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:16:47,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811412287] [2021-10-20 05:16:47,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:16:47,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:16:47,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:16:47,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:16:47,697 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:48,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:16:48,099 INFO L93 Difference]: Finished difference Result 244 states and 381 transitions. [2021-10-20 05:16:48,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-20 05:16:48,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-20 05:16:48,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:16:48,110 INFO L225 Difference]: With dead ends: 244 [2021-10-20 05:16:48,112 INFO L226 Difference]: Without dead ends: 221 [2021-10-20 05:16:48,114 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 179.5ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:16:48,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2021-10-20 05:16:48,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 66. [2021-10-20 05:16:48,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:48,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2021-10-20 05:16:48,144 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 24 [2021-10-20 05:16:48,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:16:48,144 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2021-10-20 05:16:48,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:16:48,145 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2021-10-20 05:16:48,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 05:16:48,146 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:16:48,147 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] [2021-10-20 05:16:48,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:48,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:16:48,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:16:48,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:16:48,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1487700112, now seen corresponding path program 1 times [2021-10-20 05:16:48,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:16:48,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132294475] [2021-10-20 05:16:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:16:48,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:16:48,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:16:48,366 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:16:48,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:16:50,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:50,807 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:16:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:16:52,148 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:16:52,149 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:16:52,150 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:16:52,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:16:52,152 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:16:52,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:16:52,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:16:52,382 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:16:52,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:16:52 BoogieIcfgContainer [2021-10-20 05:16:52,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:16:52,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:16:52,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:16:52,585 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:16:52,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:16:45" (3/4) ... [2021-10-20 05:16:52,590 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:16:52,730 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:16:52,731 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:16:52,733 INFO L168 Benchmark]: Toolchain (without parser) took 11700.78 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 45.9 MB in the beginning and 49.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 26.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,734 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:16:52,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.05 ms. Allocated memory is still 69.2 MB. Free memory was 45.8 MB in the beginning and 38.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 69.2 MB. Free memory was 38.2 MB in the beginning and 35.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,736 INFO L168 Benchmark]: Boogie Preprocessor took 69.16 ms. Allocated memory is still 69.2 MB. Free memory was 35.5 MB in the beginning and 51.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,736 INFO L168 Benchmark]: RCFGBuilder took 3308.22 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 51.2 MB in the beginning and 68.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,737 INFO L168 Benchmark]: TraceAbstraction took 7338.55 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 60.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,737 INFO L168 Benchmark]: Witness Printer took 146.46 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 49.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:16:52,740 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 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 748.05 ms. Allocated memory is still 69.2 MB. Free memory was 45.8 MB in the beginning and 38.2 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.15 ms. Allocated memory is still 69.2 MB. Free memory was 38.2 MB in the beginning and 35.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.16 ms. Allocated memory is still 69.2 MB. Free memory was 35.5 MB in the beginning and 51.2 MB in the end (delta: -15.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3308.22 ms. Allocated memory was 69.2 MB in the beginning and 98.6 MB in the end (delta: 29.4 MB). Free memory was 51.2 MB in the beginning and 68.5 MB in the end (delta: -17.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7338.55 ms. Allocated memory is still 98.6 MB. Free memory was 68.0 MB in the beginning and 60.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Witness Printer took 146.46 ms. Allocated memory is still 98.6 MB. Free memory was 60.2 MB in the beginning and 49.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L472] int pumpRunning = 0; [L473] int systemActive = 1; [L693] int cleanupTimeShifts = 4; [L789] int waterLevel = 1; [L790] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L766] int retValue_acc ; [L767] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L773] tmp = valid_product() [L775] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L627] int splverifierCounter ; [L628] int tmp ; [L629] int tmp___0 ; [L630] int tmp___1 ; [L631] int tmp___2 ; [L634] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L636] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L638] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L644] tmp = __VERIFIER_nondet_int() [L646] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L807] COND TRUE waterLevel < 2 [L808] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp___0 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L664] tmp___2 = __VERIFIER_nondet_int() [L666] COND TRUE \read(tmp___2) [L583] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L480] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L487] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; [L591] int tmp___0 ; [L592] int tmp___1 ; [L828] int retValue_acc ; [L831] retValue_acc = methaneLevelCritical [L832] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L596] tmp = isMethaneLevelCritical() [L598] COND FALSE !(\read(tmp)) [L860] int retValue_acc ; [L863] retValue_acc = waterLevel [L864] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L602] tmp___0 = getWaterLevel() [L604] COND TRUE tmp___0 == 2 [L535] int retValue_acc ; [L538] retValue_acc = pumpRunning [L539] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] tmp___1 = isPumpRunning() [L608] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L92] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 92]: 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: 92]: 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, 63 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 7050.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 34.4ms, AutomataDifference: 532.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 186 SDtfs, 384 SDslu, 452 SDs, 0 SdLazy, 100 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 143.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 201.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=3, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 64.0ms AutomataMinimizationTime, 3 MinimizatonAttempts, 155 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 125.7ms SsaConstructionTime, 2808.7ms SatisfiabilityAnalysisTime, 813.9ms InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 4 NumberOfNonLiveVariables, 590 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 05:16:52,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38230c36-ddda-4195-9cc8-049199088ba6/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...