./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs --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 3cf5fdf19ddae4ae4cb3a9b53207a1b0cc8f7fd8 ............................................................................................................................................ 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs --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 3cf5fdf19ddae4ae4cb3a9b53207a1b0cc8f7fd8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-5709675 [2021-10-16 02:42:15,715 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:42:15,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:42:15,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:42:15,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:42:15,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:42:15,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:42:15,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:42:15,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:42:15,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:42:15,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:42:15,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:42:15,805 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:42:15,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:42:15,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:42:15,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:42:15,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:42:15,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:42:15,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:42:15,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:42:15,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:42:15,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:42:15,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:42:15,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:42:15,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:42:15,846 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:42:15,846 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:42:15,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:42:15,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:42:15,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:42:15,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:42:15,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:42:15,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:42:15,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:42:15,857 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:42:15,858 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:42:15,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:42:15,859 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:42:15,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:42:15,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:42:15,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:42:15,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:42:15,910 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:42:15,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:42:15,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:42:15,912 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:42:15,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:42:15,913 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:42:15,913 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:42:15,913 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:42:15,913 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:42:15,913 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:42:15,914 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:42:15,915 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:42:15,915 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:42:15,915 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:42:15,915 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:42:15,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:42:15,917 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:42:15,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:42:15,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:42:15,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:42:15,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:42:15,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:42:15,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:42:15,918 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:42:15,918 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:42:15,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:42:15,919 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:42:15,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:42:15,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:42:15,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:42:15,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:15,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:42:15,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:42:15,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:42:15,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:42:15,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:42:15,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:42:15,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:42:15,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:42:15,923 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf5fdf19ddae4ae4cb3a9b53207a1b0cc8f7fd8 [2021-10-16 02:42:16,234 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:42:16,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:42:16,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:42:16,260 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:42:16,261 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:42:16,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2021-10-16 02:42:16,366 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/4fd713098/82079d8656d14c059f9a98e549cd1c8a/FLAG4a8d34cb8 [2021-10-16 02:42:16,906 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:42:16,907 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2021-10-16 02:42:16,919 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/4fd713098/82079d8656d14c059f9a98e549cd1c8a/FLAG4a8d34cb8 [2021-10-16 02:42:17,214 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/4fd713098/82079d8656d14c059f9a98e549cd1c8a [2021-10-16 02:42:17,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:42:17,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:42:17,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:17,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:42:17,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:42:17,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:17" (1/1) ... [2021-10-16 02:42:17,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bca50ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:17, skipping insertion in model container [2021-10-16 02:42:17,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:17" (1/1) ... [2021-10-16 02:42:17,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:42:17,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:42:17,496 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c[2191,2204] [2021-10-16 02:42:17,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:17,689 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) [2021-10-16 02:42:17,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2f02be25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:17, skipping insertion in model container [2021-10-16 02:42:17,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:17,690 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-16 02:42:17,693 INFO L168 Benchmark]: Toolchain (without parser) took 473.35 ms. Allocated memory is still 79.7 MB. Free memory was 55.1 MB in the beginning and 52.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:17,695 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 55.3 MB in the beginning and 55.2 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:42:17,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.45 ms. Allocated memory is still 79.7 MB. Free memory was 54.8 MB in the beginning and 53.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:17,699 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory was 55.3 MB in the beginning and 55.2 MB in the end (delta: 40.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.45 ms. Allocated memory is still 79.7 MB. Free memory was 54.8 MB in the beginning and 53.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 125]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:42:20,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:42:20,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:42:20,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:42:20,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:42:20,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:42:20,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:42:20,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:42:20,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:42:20,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:42:20,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:42:20,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:42:20,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:42:20,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:42:20,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:42:20,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:42:20,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:42:20,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:42:20,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:42:20,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:42:20,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:42:20,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:42:20,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:42:20,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:42:20,318 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:42:20,318 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:42:20,319 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:42:20,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:42:20,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:42:20,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:42:20,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:42:20,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:42:20,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:42:20,328 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:42:20,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:42:20,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:42:20,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:42:20,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:42:20,332 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:42:20,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:42:20,335 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:42:20,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:42:20,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:42:20,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:42:20,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:42:20,395 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:42:20,395 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:42:20,396 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:42:20,396 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:42:20,396 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:42:20,396 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:42:20,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:42:20,399 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:42:20,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:42:20,400 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:42:20,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:42:20,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:42:20,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:42:20,401 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:42:20,402 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:42:20,402 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:42:20,402 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:42:20,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:42:20,403 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:42:20,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:42:20,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:42:20,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:42:20,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:42:20,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:20,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:42:20,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:42:20,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:42:20,406 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:42:20,406 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:42:20,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:42:20,407 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:42:20,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:42:20,408 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf5fdf19ddae4ae4cb3a9b53207a1b0cc8f7fd8 [2021-10-16 02:42:20,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:42:20,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:42:20,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:42:20,907 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:42:20,908 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:42:20,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2021-10-16 02:42:21,008 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/88ef7e305/6fc26ec22d214060af4722f258825f92/FLAG413595a86 [2021-10-16 02:42:21,680 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:42:21,681 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c [2021-10-16 02:42:21,696 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/88ef7e305/6fc26ec22d214060af4722f258825f92/FLAG413595a86 [2021-10-16 02:42:21,709 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/data/88ef7e305/6fc26ec22d214060af4722f258825f92 [2021-10-16 02:42:21,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:42:21,713 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:42:21,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:21,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:42:21,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:42:21,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@385d2b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:21, skipping insertion in model container [2021-10-16 02:42:21,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:42:21" (1/1) ... [2021-10-16 02:42:21,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:42:21,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:42:21,955 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c[2191,2204] [2021-10-16 02:42:22,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:22,125 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-16 02:42:22,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:42:22,140 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c[2191,2204] [2021-10-16 02:42:22,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:22,216 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:42:22,234 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_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/sv-benchmarks/c/product-lines/minepump_spec3_product25.cil.c[2191,2204] [2021-10-16 02:42:22,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:42:22,317 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:42:22,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22 WrapperNode [2021-10-16 02:42:22,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:42:22,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:22,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:42:22,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:42:22,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:42:22,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:42:22,450 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:42:22,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:42:22,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:42:22,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:42:22,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:42:22,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:42:22,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (1/1) ... [2021-10-16 02:42:22,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:42:22,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:42:22,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:42:22,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:42:22,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:42:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:42:22,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:42:22,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:42:25,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:42:25,702 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-16 02:42:25,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:25 BoogieIcfgContainer [2021-10-16 02:42:25,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:42:25,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:42:25,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:42:25,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:42:25,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:42:21" (1/3) ... [2021-10-16 02:42:25,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b680e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:25, skipping insertion in model container [2021-10-16 02:42:25,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:42:22" (2/3) ... [2021-10-16 02:42:25,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b680e61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:42:25, skipping insertion in model container [2021-10-16 02:42:25,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:25" (3/3) ... [2021-10-16 02:42:25,716 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product25.cil.c [2021-10-16 02:42:25,723 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:42:25,724 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-16 02:42:25,783 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:42:25,791 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:42:25,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-16 02:42:25,808 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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) [2021-10-16 02:42:25,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:42:25,816 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:25,816 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:42:25,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:25,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:25,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1940604754, now seen corresponding path program 1 times [2021-10-16 02:42:25,838 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:25,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318507580] [2021-10-16 02:42:25,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:25,841 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:25,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:25,846 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:25,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:42:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:26,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:42:26,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:26,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:26,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:26,286 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:26,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1318507580] [2021-10-16 02:42:26,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1318507580] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:42:26,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:42:26,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:42:26,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639468372] [2021-10-16 02:42:26,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:42:26,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:26,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:42:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:42:26,312 INFO L87 Difference]: Start difference. First operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 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) [2021-10-16 02:42:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:26,336 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2021-10-16 02:42:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:42:26,337 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 [2021-10-16 02:42:26,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:26,347 INFO L225 Difference]: With dead ends: 156 [2021-10-16 02:42:26,347 INFO L226 Difference]: Without dead ends: 77 [2021-10-16 02:42:26,350 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 [2021-10-16 02:42:26,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-16 02:42:26,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-16 02:42:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 76 states have internal predecessors, (108), 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) [2021-10-16 02:42:26,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-16 02:42:26,388 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2021-10-16 02:42:26,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:26,389 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-16 02:42:26,389 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) [2021-10-16 02:42:26,390 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2021-10-16 02:42:26,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-16 02:42:26,391 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:26,391 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:42:26,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:26,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:26,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:26,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:26,605 INFO L82 PathProgramCache]: Analyzing trace with hash 1815937872, now seen corresponding path program 1 times [2021-10-16 02:42:26,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:26,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148395753] [2021-10-16 02:42:26,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:26,607 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:26,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:26,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:26,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:42:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:26,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:42:26,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:26,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:26,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:26,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:26,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:26,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148395753] [2021-10-16 02:42:26,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1148395753] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:42:26,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:42:26,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:42:26,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748364349] [2021-10-16 02:42:26,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:42:26,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:26,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:42:26,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:42:26,980 INFO L87 Difference]: Start difference. First operand 77 states and 108 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) [2021-10-16 02:42:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:27,014 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2021-10-16 02:42:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:42:27,015 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 [2021-10-16 02:42:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:27,017 INFO L225 Difference]: With dead ends: 77 [2021-10-16 02:42:27,017 INFO L226 Difference]: Without dead ends: 35 [2021-10-16 02:42:27,018 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:42:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-16 02:42:27,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-16 02:42:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:27,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-16 02:42:27,043 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-10-16 02:42:27,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:27,044 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-16 02:42:27,044 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) [2021-10-16 02:42:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-16 02:42:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-16 02:42:27,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:27,048 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] [2021-10-16 02:42:27,066 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:27,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:27,262 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:27,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:27,263 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2021-10-16 02:42:27,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:27,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1177488643] [2021-10-16 02:42:27,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:27,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:27,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:27,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:27,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:42:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:27,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:42:27,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:27,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:27,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:27,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:27,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:27,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1177488643] [2021-10-16 02:42:27,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1177488643] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:42:27,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:42:27,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:42:27,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489650058] [2021-10-16 02:42:27,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:42:27,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:27,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:42:27,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:42:27,740 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:27,749 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-16 02:42:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:42:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-16 02:42:27,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:27,751 INFO L225 Difference]: With dead ends: 64 [2021-10-16 02:42:27,751 INFO L226 Difference]: Without dead ends: 35 [2021-10-16 02:42:27,752 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:42:27,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-16 02:42:27,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-16 02:42:27,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 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) [2021-10-16 02:42:27,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-16 02:42:27,757 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2021-10-16 02:42:27,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:27,758 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-16 02:42:27,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:42:27,758 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2021-10-16 02:42:27,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:42:27,759 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:27,759 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] [2021-10-16 02:42:27,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:27,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:27,972 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:27,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:27,973 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2021-10-16 02:42:27,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:27,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085357651] [2021-10-16 02:42:27,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:27,974 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:27,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:27,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:28,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:42:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:42:28,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:42:28,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:42:28,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:28,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:42:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:42:28,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:42:28,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085357651] [2021-10-16 02:42:28,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2085357651] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:42:28,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:42:28,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-16 02:42:28,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825553854] [2021-10-16 02:42:28,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:42:28,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:42:28,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:42:28,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:42:28,529 INFO L87 Difference]: Start difference. First operand 35 states and 48 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) [2021-10-16 02:42:28,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:42:28,936 INFO L93 Difference]: Finished difference Result 340 states and 509 transitions. [2021-10-16 02:42:28,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-16 02:42:28,937 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 [2021-10-16 02:42:28,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:42:28,945 INFO L225 Difference]: With dead ends: 340 [2021-10-16 02:42:28,945 INFO L226 Difference]: Without dead ends: 311 [2021-10-16 02:42:28,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 161.2ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:42:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-10-16 02:42:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 84. [2021-10-16 02:42:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.4216867469879517) internal successors, (118), 83 states have internal predecessors, (118), 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) [2021-10-16 02:42:28,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 118 transitions. [2021-10-16 02:42:28,994 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 118 transitions. Word has length 25 [2021-10-16 02:42:28,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:42:28,994 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 118 transitions. [2021-10-16 02:42:28,995 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) [2021-10-16 02:42:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 118 transitions. [2021-10-16 02:42:29,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-16 02:42:29,001 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:42:29,001 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] [2021-10-16 02:42:29,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:29,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:29,224 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:42:29,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:42:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2021-10-16 02:42:29,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:42:29,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1986200134] [2021-10-16 02:42:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:42:29,225 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:42:29,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:42:29,227 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:42:29,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:42:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:42:30,431 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:42:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:42:31,988 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-16 02:42:31,988 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:42:31,989 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:42:31,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:42:31,992 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:42:32,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:42:32,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:42:32,220 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:42:32,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:42:32 BoogieIcfgContainer [2021-10-16 02:42:32,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:42:32,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:42:32,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:42:32,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:42:32,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:42:25" (3/4) ... [2021-10-16 02:42:32,391 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-16 02:42:32,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:42:32,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:42:32,510 INFO L168 Benchmark]: Toolchain (without parser) took 10795.73 ms. Allocated memory was 69.2 MB in the beginning and 109.1 MB in the end (delta: 39.8 MB). Free memory was 49.3 MB in the beginning and 59.3 MB in the end (delta: -9.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,510 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:42:32,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.02 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 36.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.44 ms. Allocated memory is still 69.2 MB. Free memory was 36.6 MB in the beginning and 33.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,512 INFO L168 Benchmark]: Boogie Preprocessor took 80.93 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 33.8 MB in the beginning and 71.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,513 INFO L168 Benchmark]: RCFGBuilder took 3177.69 ms. Allocated memory is still 90.2 MB. Free memory was 71.5 MB in the beginning and 48.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,513 INFO L168 Benchmark]: TraceAbstraction took 6678.73 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 47.7 MB in the beginning and 70.6 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:42:32,513 INFO L168 Benchmark]: Witness Printer took 121.33 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 59.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:42:32,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 69.2 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 54.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 615.02 ms. Allocated memory is still 69.2 MB. Free memory was 49.2 MB in the beginning and 36.8 MB in the end (delta: 12.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.44 ms. Allocated memory is still 69.2 MB. Free memory was 36.6 MB in the beginning and 33.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 80.93 ms. Allocated memory was 69.2 MB in the beginning and 90.2 MB in the end (delta: 21.0 MB). Free memory was 33.8 MB in the beginning and 71.9 MB in the end (delta: -38.1 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3177.69 ms. Allocated memory is still 90.2 MB. Free memory was 71.5 MB in the beginning and 48.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6678.73 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 47.7 MB in the beginning and 70.6 MB in the end (delta: -22.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 121.33 ms. Allocated memory is still 109.1 MB. Free memory was 69.8 MB in the beginning and 59.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 92]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L468] int waterLevel = 1; [L469] int methaneLevelCritical = 0; [L595] int cleanupTimeShifts = 4; [L696] int pumpRunning = 0; [L697] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L671] int retValue_acc ; [L672] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L586] int retValue_acc ; [L589] retValue_acc = 1 [L590] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L678] tmp = valid_product() [L680] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] int splverifierCounter ; [L868] int tmp ; [L869] int tmp___0 ; [L870] int tmp___1 ; [L871] int tmp___2 ; [L874] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L876] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L878] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L884] tmp = __VERIFIER_nondet_int() [L886] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L486] COND TRUE waterLevel < 2 [L487] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] tmp___0 = __VERIFIER_nondet_int() [L896] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L904] tmp___2 = __VERIFIER_nondet_int() [L906] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L703] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L710] COND TRUE \read(systemActive) [L732] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L735] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; [L507] int retValue_acc ; [L510] retValue_acc = methaneLevelCritical [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L539] int retValue_acc ; [L542] retValue_acc = waterLevel [L543] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L802] int retValue_acc ; [L805] retValue_acc = pumpRunning [L806] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L92] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 92]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6437.0ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 21.9ms, AutomataDifference: 529.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 283 SDtfs, 503 SDslu, 558 SDs, 0 SdLazy, 117 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 159.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 173 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 187.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99.5ms AutomataMinimizationTime, 4 MinimizatonAttempts, 227 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 134.0ms SsaConstructionTime, 1634.4ms SatisfiabilityAnalysisTime, 914.9ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 352 SizeOfPredicates, 4 NumberOfNonLiveVariables, 790 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! [2021-10-16 02:42:32,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e278af9b-7acd-43a8-8dcf-57b79bb5be8f/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...