./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.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_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/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_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/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_37a5304d-4353-44a1-a08e-27d051b469c3/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 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b ............................................................................................................................................ 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_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/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_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/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_37a5304d-4353-44a1-a08e-27d051b469c3/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 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:13:10,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:13:10,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:13:10,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:13:10,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:13:10,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:13:10,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:13:10,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:13:10,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:13:10,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:13:10,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:13:10,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:13:10,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:13:10,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:13:10,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:13:10,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:13:10,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:13:10,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:13:10,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:13:10,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:13:10,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:13:10,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:13:10,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:13:10,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:13:10,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:13:10,962 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:13:10,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:13:10,964 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:13:10,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:13:10,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:13:10,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:13:10,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:13:10,971 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:13:10,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:13:10,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:13:10,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:13:10,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:13:10,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:13:10,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:13:10,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:13:10,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:13:10,982 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:13:11,036 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:13:11,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:13:11,038 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:13:11,038 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:13:11,039 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:13:11,039 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:13:11,039 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:13:11,039 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:13:11,040 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:13:11,040 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:13:11,041 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:13:11,041 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:13:11,042 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:13:11,042 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:13:11,042 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:13:11,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:13:11,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:13:11,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:13:11,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:13:11,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:13:11,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:13:11,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:13:11,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:13:11,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:13:11,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:13:11,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:13:11,046 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:13:11,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:13:11,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:13:11,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:13:11,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:13:11,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:13:11,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:13:11,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:13:11,050 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:13:11,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:13:11,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:13:11,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:13:11,051 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:13:11,051 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_37a5304d-4353-44a1-a08e-27d051b469c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b [2021-10-20 05:13:11,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:13:11,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:13:11,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:13:11,404 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:13:11,404 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:13:11,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-10-20 05:13:11,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/ac96e187f/0fd40c3a782245c4a2b3de46f5e54bef/FLAG80e91073d [2021-10-20 05:13:12,096 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:13:12,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-10-20 05:13:12,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/ac96e187f/0fd40c3a782245c4a2b3de46f5e54bef/FLAG80e91073d [2021-10-20 05:13:12,361 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/ac96e187f/0fd40c3a782245c4a2b3de46f5e54bef [2021-10-20 05:13:12,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:13:12,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:13:12,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:12,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:13:12,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:13:12,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:12" (1/1) ... [2021-10-20 05:13:12,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0c35ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:12, skipping insertion in model container [2021-10-20 05:13:12,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:12" (1/1) ... [2021-10-20 05:13:12,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:13:12,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:13:12,736 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_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-10-20 05:13:12,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:12,751 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 05:13:12,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ed15b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:12, skipping insertion in model container [2021-10-20 05:13:12,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:12,752 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-20 05:13:12,754 INFO L168 Benchmark]: Toolchain (without parser) took 387.83 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.3 MB in the beginning and 88.6 MB in the end (delta: -33.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:12,755 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:12,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.63 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.1 MB in the beginning and 89.1 MB in the end (delta: -34.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:12,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory was 64.0 MB in the beginning and 64.0 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.63 ms. Allocated memory was 90.2 MB in the beginning and 117.4 MB in the end (delta: 27.3 MB). Free memory was 55.1 MB in the beginning and 89.1 MB in the end (delta: -34.0 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: 116]: 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 05:13:14,995 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:13:14,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:13:15,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:13:15,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:13:15,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:13:15,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:13:15,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:13:15,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:13:15,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:13:15,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:13:15,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:13:15,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:13:15,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:13:15,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:13:15,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:13:15,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:13:15,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:13:15,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:13:15,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:13:15,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:13:15,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:13:15,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:13:15,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:13:15,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:13:15,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:13:15,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:13:15,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:13:15,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:13:15,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:13:15,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:13:15,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:13:15,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:13:15,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:13:15,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:13:15,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:13:15,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:13:15,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:13:15,086 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:13:15,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:13:15,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:13:15,088 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:13:15,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:13:15,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:13:15,124 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:13:15,125 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:13:15,125 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:13:15,125 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:13:15,125 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:13:15,126 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:13:15,126 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:13:15,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:13:15,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:13:15,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:13:15,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:13:15,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:13:15,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:13:15,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:13:15,130 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:13:15,130 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:13:15,130 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:13:15,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:13:15,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:13:15,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:13:15,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:13:15,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:13:15,132 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:13:15,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:13:15,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:13:15,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:13:15,133 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:13:15,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:13:15,133 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:13:15,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:13:15,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:13:15,134 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:13:15,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:13:15,134 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_37a5304d-4353-44a1-a08e-27d051b469c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43c19ce3e2b7787ecf8dd3f4cbbbb7bba1e2bcc266043b083140097432ac956b [2021-10-20 05:13:15,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:13:15,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:13:15,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:13:15,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:13:15,610 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:13:15,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-10-20 05:13:15,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/17b10d8b9/efb53a1d15444cc1a05b6e7e5760911d/FLAG970f324f1 [2021-10-20 05:13:16,379 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:13:16,382 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c [2021-10-20 05:13:16,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/17b10d8b9/efb53a1d15444cc1a05b6e7e5760911d/FLAG970f324f1 [2021-10-20 05:13:16,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/data/17b10d8b9/efb53a1d15444cc1a05b6e7e5760911d [2021-10-20 05:13:16,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:13:16,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:13:16,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:16,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:13:16,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:13:16,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:16" (1/1) ... [2021-10-20 05:13:16,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a30ccab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:16, skipping insertion in model container [2021-10-20 05:13:16,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:13:16" (1/1) ... [2021-10-20 05:13:16,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:13:16,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:13:17,032 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_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-10-20 05:13:17,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:17,054 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-20 05:13:17,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:13:17,125 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_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-10-20 05:13:17,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:17,136 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:13:17,205 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_37a5304d-4353-44a1-a08e-27d051b469c3/sv-benchmarks/c/product-lines/minepump_spec3_product20.cil.c[17955,17968] [2021-10-20 05:13:17,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:13:17,228 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:13:17,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17 WrapperNode [2021-10-20 05:13:17,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:13:17,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:13:17,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:13:17,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:13:17,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:13:17,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:13:17,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:13:17,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:13:17,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:13:17,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:13:17,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:13:17,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:13:17,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (1/1) ... [2021-10-20 05:13:17,381 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:13:17,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:13:17,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:13:17,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:13:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:13:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:13:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:13:17,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:13:19,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:13:19,850 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-10-20 05:13:19,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:19 BoogieIcfgContainer [2021-10-20 05:13:19,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:13:19,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:13:19,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:13:19,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:13:19,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:13:16" (1/3) ... [2021-10-20 05:13:19,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68207a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:19, skipping insertion in model container [2021-10-20 05:13:19,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:13:17" (2/3) ... [2021-10-20 05:13:19,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68207a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:13:19, skipping insertion in model container [2021-10-20 05:13:19,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:19" (3/3) ... [2021-10-20 05:13:19,861 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-10-20 05:13:19,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:13:19,867 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-20 05:13:19,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:13:19,927 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 05:13:19,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-20 05:13:19,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 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 05:13:19,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:13:19,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:19,947 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 05:13:19,948 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 05:13:19,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:19,953 INFO L82 PathProgramCache]: Analyzing trace with hash -93315333, now seen corresponding path program 1 times [2021-10-20 05:13:19,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:19,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849153628] [2021-10-20 05:13:19,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:19,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:19,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:19,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:19,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:13:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:20,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-20 05:13:20,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:20,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:20,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:20,348 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 05:13:20,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:20,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849153628] [2021-10-20 05:13:20,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [849153628] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:20,349 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:20,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-20 05:13:20,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393979020] [2021-10-20 05:13:20,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-20 05:13:20,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-20 05:13:20,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:13:20,371 INFO L87 Difference]: Start difference. First operand has 83 states, 79 states have (on average 1.5569620253164558) internal successors, (123), 82 states have internal predecessors, (123), 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 05:13:20,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:20,395 INFO L93 Difference]: Finished difference Result 160 states and 239 transitions. [2021-10-20 05:13:20,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-20 05:13:20,396 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 05:13:20,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:20,406 INFO L225 Difference]: With dead ends: 160 [2021-10-20 05:13:20,406 INFO L226 Difference]: Without dead ends: 79 [2021-10-20 05:13:20,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-20 05:13:20,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-10-20 05:13:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-10-20 05:13:20,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 76 states have (on average 1.4605263157894737) internal successors, (111), 78 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 111 transitions. [2021-10-20 05:13:20,446 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 111 transitions. Word has length 18 [2021-10-20 05:13:20,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:20,447 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 111 transitions. [2021-10-20 05:13:20,447 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 05:13:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2021-10-20 05:13:20,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-20 05:13:20,448 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:20,449 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 05:13:20,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:20,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:20,661 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 05:13:20,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:20,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1004346086, now seen corresponding path program 1 times [2021-10-20 05:13:20,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:20,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107820192] [2021-10-20 05:13:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:20,668 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:20,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:20,671 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:20,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-20 05:13:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:20,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:20,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:20,983 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 05:13:20,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:21,039 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 05:13:21,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:21,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107820192] [2021-10-20 05:13:21,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107820192] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:21,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:21,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:21,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788702856] [2021-10-20 05:13:21,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:21,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:21,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:21,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:21,044 INFO L87 Difference]: Start difference. First operand 79 states and 111 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 05:13:21,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:21,064 INFO L93 Difference]: Finished difference Result 79 states and 111 transitions. [2021-10-20 05:13:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:13:21,064 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 05:13:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:21,065 INFO L225 Difference]: With dead ends: 79 [2021-10-20 05:13:21,066 INFO L226 Difference]: Without dead ends: 37 [2021-10-20 05:13:21,067 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:21,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-20 05:13:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-20 05:13:21,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 36 states have internal predecessors, (52), 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 05:13:21,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2021-10-20 05:13:21,082 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 19 [2021-10-20 05:13:21,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:21,082 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2021-10-20 05:13:21,083 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 05:13:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2021-10-20 05:13:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-20 05:13:21,085 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:21,088 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 05:13:21,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:21,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:21,292 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 05:13:21,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:21,292 INFO L82 PathProgramCache]: Analyzing trace with hash 2100491951, now seen corresponding path program 1 times [2021-10-20 05:13:21,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:21,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2101899636] [2021-10-20 05:13:21,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:21,294 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:21,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:21,295 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:21,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-20 05:13:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:21,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:13:21,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:21,596 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 05:13:21,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:21,691 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 05:13:21,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:21,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2101899636] [2021-10-20 05:13:21,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2101899636] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:21,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:21,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-20 05:13:21,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851492218] [2021-10-20 05:13:21,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:13:21,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:21,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:13:21,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:21,694 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:21,740 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2021-10-20 05:13:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:13:21,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-20 05:13:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:21,742 INFO L225 Difference]: With dead ends: 124 [2021-10-20 05:13:21,742 INFO L226 Difference]: Without dead ends: 93 [2021-10-20 05:13:21,743 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:13:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-10-20 05:13:21,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2021-10-20 05:13:21,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 57 states have internal predecessors, (84), 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 05:13:21,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 84 transitions. [2021-10-20 05:13:21,753 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 84 transitions. Word has length 24 [2021-10-20 05:13:21,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:21,754 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 84 transitions. [2021-10-20 05:13:21,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:13:21,754 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 84 transitions. [2021-10-20 05:13:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-20 05:13:21,755 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:21,755 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 05:13:21,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:21,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:21,968 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 05:13:21,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:21,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1826320204, now seen corresponding path program 1 times [2021-10-20 05:13:21,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:21,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303334849] [2021-10-20 05:13:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:21,969 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:21,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:21,970 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:21,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-20 05:13:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:13:22,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-20 05:13:22,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:13:22,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:13:22,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:13:22,402 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 05:13:22,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-20 05:13:22,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303334849] [2021-10-20 05:13:22,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303334849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:13:22,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:13:22,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-20 05:13:22,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757796412] [2021-10-20 05:13:22,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-20 05:13:22,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-20 05:13:22,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-20 05:13:22,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:13:22,406 INFO L87 Difference]: Start difference. First operand 58 states and 84 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 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 05:13:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:13:22,770 INFO L93 Difference]: Finished difference Result 602 states and 924 transitions. [2021-10-20 05:13:22,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-20 05:13:22,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 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 25 [2021-10-20 05:13:22,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:13:22,776 INFO L225 Difference]: With dead ends: 602 [2021-10-20 05:13:22,777 INFO L226 Difference]: Without dead ends: 550 [2021-10-20 05:13:22,778 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:13:22,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-10-20 05:13:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 148. [2021-10-20 05:13:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 147 states have (on average 1.4557823129251701) internal successors, (214), 147 states have internal predecessors, (214), 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 05:13:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 214 transitions. [2021-10-20 05:13:22,815 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 214 transitions. Word has length 25 [2021-10-20 05:13:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:13:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 214 transitions. [2021-10-20 05:13:22,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 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 05:13:22,816 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 214 transitions. [2021-10-20 05:13:22,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 05:13:22,817 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:13:22,818 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:13:22,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:23,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:23,030 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:13:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:13:23,030 INFO L82 PathProgramCache]: Analyzing trace with hash 509338102, now seen corresponding path program 1 times [2021-10-20 05:13:23,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:13:23,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757660564] [2021-10-20 05:13:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:13:23,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:13:23,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:13:23,033 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:13:23,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-20 05:13:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:13:24,709 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:13:25,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:13:26,030 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:13:26,030 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:13:26,031 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:26,033 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:26,034 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:13:26,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:13:26,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:13:26,260 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:13:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:13:26 BoogieIcfgContainer [2021-10-20 05:13:26,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:13:26,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:13:26,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:13:26,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:13:26,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:13:19" (3/4) ... [2021-10-20 05:13:26,440 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:13:26,563 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:13:26,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:13:26,567 INFO L168 Benchmark]: Toolchain (without parser) took 9902.66 ms. Allocated memory was 65.0 MB in the beginning and 107.0 MB in the end (delta: 41.9 MB). Free memory was 42.9 MB in the beginning and 66.9 MB in the end (delta: -24.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,568 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:13:26,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 564.35 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 32.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.77 ms. Allocated memory is still 65.0 MB. Free memory was 32.5 MB in the beginning and 46.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,573 INFO L168 Benchmark]: Boogie Preprocessor took 50.00 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 44.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,576 INFO L168 Benchmark]: RCFGBuilder took 2491.48 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.2 MB in the beginning and 58.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,576 INFO L168 Benchmark]: TraceAbstraction took 6579.36 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.1 MB in the beginning and 77.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,577 INFO L168 Benchmark]: Witness Printer took 130.57 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 66.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:13:26,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 65.0 MB. Free memory is still 45.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 564.35 ms. Allocated memory is still 65.0 MB. Free memory was 42.8 MB in the beginning and 32.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.77 ms. Allocated memory is still 65.0 MB. Free memory was 32.5 MB in the beginning and 46.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.00 ms. Allocated memory is still 65.0 MB. Free memory was 46.6 MB in the beginning and 44.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2491.48 ms. Allocated memory was 65.0 MB in the beginning and 88.1 MB in the end (delta: 23.1 MB). Free memory was 44.2 MB in the beginning and 58.6 MB in the end (delta: -14.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6579.36 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 58.1 MB in the beginning and 77.4 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. * Witness Printer took 130.57 ms. Allocated memory is still 107.0 MB. Free memory was 77.4 MB in the beginning and 66.9 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: 937]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L257] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L454] int cleanupTimeShifts = 4; [L600] int pumpRunning = 0; [L601] int systemActive = 1; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] int retValue_acc ; [L533] 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] [L539] tmp = valid_product() [L541] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L776] int splverifierCounter ; [L777] int tmp ; [L778] int tmp___0 ; [L779] int tmp___1 ; [L780] int tmp___2 ; [L783] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L785] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L787] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L793] tmp = __VERIFIER_nondet_int() [L795] 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] [L803] tmp___0 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] tmp___2 = __VERIFIER_nondet_int() [L815] COND TRUE \read(tmp___2) [L770] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L614] COND TRUE \read(systemActive) [L636] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L639] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int tmp ; [L561] int tmp___0 ; [L562] 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] [L566] tmp = isMethaneLevelCritical() [L568] 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] [L572] tmp___0 = getWaterLevel() [L574] COND TRUE tmp___0 == 2 [L688] int retValue_acc ; [L691] retValue_acc = pumpRunning [L692] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L576] tmp___1 = isPumpRunning() [L578] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L937] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 937]: 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: 937]: 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, 83 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6340.5ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 15.4ms, AutomataDifference: 498.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 301 SDtfs, 802 SDslu, 631 SDs, 0 SdLazy, 118 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 154.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 165.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred 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: 84.2ms AutomataMinimizationTime, 4 MinimizatonAttempts, 437 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 127.1ms SsaConstructionTime, 2024.2ms SatisfiabilityAnalysisTime, 751.8ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 287 SizeOfPredicates, 4 NumberOfNonLiveVariables, 792 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! [2021-10-20 05:13:26,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_37a5304d-4353-44a1-a08e-27d051b469c3/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...