./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 ............................................................................................................................................ 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:51:44,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:51:44,703 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:51:44,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:51:44,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:51:44,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:51:44,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:51:44,771 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:51:44,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:51:44,780 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:51:44,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:51:44,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:51:44,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:51:44,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:51:44,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:51:44,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:51:44,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:51:44,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:51:44,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:51:44,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:51:44,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:51:44,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:51:44,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:51:44,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:51:44,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:51:44,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:51:44,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:51:44,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:51:44,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:51:44,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:51:44,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:51:44,832 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:51:44,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:51:44,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:51:44,838 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:51:44,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:51:44,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:51:44,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:51:44,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:51:44,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:51:44,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:51:44,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:51:44,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:51:44,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:51:44,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:51:44,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:51:44,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:51:44,890 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:51:44,890 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:51:44,891 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:51:44,891 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:51:44,891 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:51:44,898 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:51:44,899 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:51:44,899 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:51:44,899 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:51:44,899 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:51:44,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:51:44,900 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:51:44,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:51:44,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:51:44,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:51:44,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:51:44,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:51:44,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:51:44,902 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:51:44,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:51:44,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:51:44,903 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:51:44,903 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:51:44,903 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:51:44,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:51:44,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:44,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:51:44,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:51:44,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:51:44,906 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:51:44,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:51:44,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:51:44,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:51:44,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:51:44,907 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-10-24 09:51:45,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:51:45,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:51:45,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:51:45,274 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:51:45,275 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:51:45,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-24 09:51:45,355 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/dd20f482a/1da1e6e0df7849ffbda0e8103d308c79/FLAGf66731cbd [2021-10-24 09:51:45,873 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:51:45,874 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-24 09:51:45,889 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/dd20f482a/1da1e6e0df7849ffbda0e8103d308c79/FLAGf66731cbd [2021-10-24 09:51:46,226 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/dd20f482a/1da1e6e0df7849ffbda0e8103d308c79 [2021-10-24 09:51:46,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:51:46,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:51:46,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:46,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:51:46,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:51:46,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:46" (1/1) ... [2021-10-24 09:51:46,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f2f829a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:46, skipping insertion in model container [2021-10-24 09:51:46,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:46" (1/1) ... [2021-10-24 09:51:46,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:51:46,298 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:51:46,624 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-24 09:51:46,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:46,701 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 09:51:46,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6e559f0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:46, skipping insertion in model container [2021-10-24 09:51:46,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:46,702 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:51:46,705 INFO L168 Benchmark]: Toolchain (without parser) took 473.02 ms. Allocated memory is still 90.2 MB. Free memory was 68.9 MB in the beginning and 62.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:46,707 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:51:46,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.13 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 62.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:51:46,712 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 65.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.13 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 62.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 78]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:51:48,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:51:48,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:51:49,015 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:51:49,016 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:51:49,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:51:49,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:51:49,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:51:49,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:51:49,028 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:51:49,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:51:49,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:51:49,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:51:49,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:51:49,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:51:49,036 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:51:49,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:51:49,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:51:49,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:51:49,042 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:51:49,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:51:49,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:51:49,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:51:49,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:51:49,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:51:49,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:51:49,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:51:49,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:51:49,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:51:49,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:51:49,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:51:49,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:51:49,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:51:49,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:51:49,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:51:49,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:51:49,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:51:49,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:51:49,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:51:49,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:51:49,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:51:49,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:51:49,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:51:49,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:51:49,096 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:51:49,097 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:51:49,097 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:51:49,097 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:51:49,097 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:51:49,098 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:51:49,099 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:51:49,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:51:49,101 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:51:49,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:51:49,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:51:49,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:51:49,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:51:49,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:51:49,103 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:51:49,103 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:51:49,103 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:51:49,103 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:51:49,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:51:49,104 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:51:49,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:51:49,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:51:49,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:51:49,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:51:49,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:49,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:51:49,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:51:49,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:51:49,106 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:51:49,106 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:51:49,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:51:49,107 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:51:49,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:51:49,107 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-10-24 09:51:49,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:51:49,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:51:49,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:51:49,552 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:51:49,552 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:51:49,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-24 09:51:49,630 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/d350ae88d/9b76bfc5b0ec4e14b6a7a87d1e54c09c/FLAGfdbf75e8a [2021-10-24 09:51:50,267 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:51:50,268 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-24 09:51:50,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/d350ae88d/9b76bfc5b0ec4e14b6a7a87d1e54c09c/FLAGfdbf75e8a [2021-10-24 09:51:50,504 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/data/d350ae88d/9b76bfc5b0ec4e14b6a7a87d1e54c09c [2021-10-24 09:51:50,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:51:50,508 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:51:50,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:50,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:51:50,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:51:50,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:50" (1/1) ... [2021-10-24 09:51:50,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b467bb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:50, skipping insertion in model container [2021-10-24 09:51:50,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:51:50" (1/1) ... [2021-10-24 09:51:50,527 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:51:50,595 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:51:50,864 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-24 09:51:50,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:50,906 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:51:50,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:51:50,987 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-24 09:51:51,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:51,009 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:51:51,062 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_5ad98fdb-2ec5-4f7b-9900-72b731926fde/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-24 09:51:51,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:51:51,108 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:51:51,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51 WrapperNode [2021-10-24 09:51:51,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:51:51,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:51,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:51:51,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:51:51,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:51:51,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:51:51,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:51:51,251 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:51:51,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:51:51,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:51:51,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:51:51,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:51:51,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (1/1) ... [2021-10-24 09:51:51,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:51:51,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:51:51,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:51:51,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:51:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:51:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:51:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:51:51,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:51:54,047 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:51:54,048 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-10-24 09:51:54,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:54 BoogieIcfgContainer [2021-10-24 09:51:54,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:51:54,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:51:54,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:51:54,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:51:54,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:51:50" (1/3) ... [2021-10-24 09:51:54,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49170937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:54, skipping insertion in model container [2021-10-24 09:51:54,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:51:51" (2/3) ... [2021-10-24 09:51:54,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49170937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:51:54, skipping insertion in model container [2021-10-24 09:51:54,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:54" (3/3) ... [2021-10-24 09:51:54,060 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-10-24 09:51:54,066 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:51:54,066 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 09:51:54,119 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:51:54,125 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 09:51:54,126 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 09:51:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:54,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:51:54,152 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:54,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:54,153 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:54,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:54,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1718080062, now seen corresponding path program 1 times [2021-10-24 09:51:54,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:54,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2124832772] [2021-10-24 09:51:54,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:54,175 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:54,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:54,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:54,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:51:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:54,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 09:51:54,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:54,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:54,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:54,533 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:54,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2124832772] [2021-10-24 09:51:54,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2124832772] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:54,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:54,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:51:54,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578605236] [2021-10-24 09:51:54,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:51:54,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:54,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:51:54,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:51:54,559 INFO L87 Difference]: Start difference. First operand has 143 states, 139 states have (on average 1.5323741007194245) internal successors, (213), 142 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:54,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:54,592 INFO L93 Difference]: Finished difference Result 280 states and 419 transitions. [2021-10-24 09:51:54,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:51:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 09:51:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:54,606 INFO L225 Difference]: With dead ends: 280 [2021-10-24 09:51:54,606 INFO L226 Difference]: Without dead ends: 139 [2021-10-24 09:51:54,610 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:51:54,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-24 09:51:54,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-10-24 09:51:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 136 states have (on average 1.4779411764705883) internal successors, (201), 138 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:54,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 201 transitions. [2021-10-24 09:51:54,655 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 201 transitions. Word has length 18 [2021-10-24 09:51:54,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:54,655 INFO L470 AbstractCegarLoop]: Abstraction has 139 states and 201 transitions. [2021-10-24 09:51:54,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:54,656 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 201 transitions. [2021-10-24 09:51:54,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:51:54,657 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:54,658 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:54,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:54,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:54,870 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:54,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:54,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1665856481, now seen corresponding path program 1 times [2021-10-24 09:51:54,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:54,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410277008] [2021-10-24 09:51:54,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:54,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:54,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:54,878 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:54,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:51:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:55,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:51:55,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:55,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:55,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:55,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:55,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:55,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410277008] [2021-10-24 09:51:55,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [410277008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:55,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:55,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:51:55,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145471717] [2021-10-24 09:51:55,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:51:55,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:55,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:51:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:51:55,249 INFO L87 Difference]: Start difference. First operand 139 states and 201 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:55,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:55,288 INFO L93 Difference]: Finished difference Result 139 states and 201 transitions. [2021-10-24 09:51:55,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:51:55,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 09:51:55,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:55,291 INFO L225 Difference]: With dead ends: 139 [2021-10-24 09:51:55,292 INFO L226 Difference]: Without dead ends: 57 [2021-10-24 09:51:55,293 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:51:55,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-24 09:51:55,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-24 09:51:55,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:55,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-24 09:51:55,312 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-24 09:51:55,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:55,312 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-24 09:51:55,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-24 09:51:55,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:51:55,315 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:55,321 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:55,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:55,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:55,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:55,538 INFO L82 PathProgramCache]: Analyzing trace with hash 35331171, now seen corresponding path program 1 times [2021-10-24 09:51:55,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:55,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1073261463] [2021-10-24 09:51:55,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:55,540 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:55,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:55,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:55,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:51:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:55,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:51:55,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:55,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:55,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:55,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1073261463] [2021-10-24 09:51:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1073261463] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:55,960 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:55,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 09:51:55,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400492199] [2021-10-24 09:51:55,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:51:55,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:55,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:51:55,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:51:55,962 INFO L87 Difference]: Start difference. First operand 57 states and 82 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) [2021-10-24 09:51:56,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:56,013 INFO L93 Difference]: Finished difference Result 184 states and 271 transitions. [2021-10-24 09:51:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:51:56,013 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 [2021-10-24 09:51:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:56,015 INFO L225 Difference]: With dead ends: 184 [2021-10-24 09:51:56,015 INFO L226 Difference]: Without dead ends: 133 [2021-10-24 09:51:56,015 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:51:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-24 09:51:56,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 78. [2021-10-24 09:51:56,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 77 states have (on average 1.4805194805194806) internal successors, (114), 77 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:56,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2021-10-24 09:51:56,037 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 24 [2021-10-24 09:51:56,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:56,038 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2021-10-24 09:51:56,038 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) [2021-10-24 09:51:56,038 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2021-10-24 09:51:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:51:56,040 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:56,040 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:56,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:56,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:56,254 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:56,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:56,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1148352902, now seen corresponding path program 1 times [2021-10-24 09:51:56,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:56,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1885007347] [2021-10-24 09:51:56,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:56,256 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:56,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:56,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:56,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:51:56,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:56,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:51:56,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:56,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:56,639 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:56,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1885007347] [2021-10-24 09:51:56,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1885007347] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:56,640 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:56,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:51:56,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250912247] [2021-10-24 09:51:56,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:51:56,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:51:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:51:56,643 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:56,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:56,707 INFO L93 Difference]: Finished difference Result 173 states and 255 transitions. [2021-10-24 09:51:56,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:51:56,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 09:51:56,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:56,709 INFO L225 Difference]: With dead ends: 173 [2021-10-24 09:51:56,709 INFO L226 Difference]: Without dead ends: 101 [2021-10-24 09:51:56,710 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:51:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-10-24 09:51:56,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-10-24 09:51:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 98 states have (on average 1.4387755102040816) internal successors, (141), 98 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:56,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-10-24 09:51:56,723 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 26 [2021-10-24 09:51:56,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:56,724 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-10-24 09:51:56,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:56,724 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-10-24 09:51:56,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 09:51:56,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:56,726 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:56,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:56,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:56,939 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:56,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:56,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1938820856, now seen corresponding path program 1 times [2021-10-24 09:51:56,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:56,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1204341188] [2021-10-24 09:51:56,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:56,940 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:56,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:56,941 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:56,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:51:57,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:51:57,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:51:57,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:51:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:57,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:51:57,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:51:57,454 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:51:57,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1204341188] [2021-10-24 09:51:57,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1204341188] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:51:57,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:51:57,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 09:51:57,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314501268] [2021-10-24 09:51:57,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:51:57,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:51:57,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:51:57,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:51:57,458 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:57,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:51:57,955 INFO L93 Difference]: Finished difference Result 1099 states and 1606 transitions. [2021-10-24 09:51:57,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 09:51:57,956 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-24 09:51:57,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:51:57,962 INFO L225 Difference]: With dead ends: 1099 [2021-10-24 09:51:57,962 INFO L226 Difference]: Without dead ends: 1006 [2021-10-24 09:51:57,963 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 161.0ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 09:51:57,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states. [2021-10-24 09:51:58,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 251. [2021-10-24 09:51:58,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.412) internal successors, (353), 250 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:58,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 353 transitions. [2021-10-24 09:51:58,007 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 353 transitions. Word has length 27 [2021-10-24 09:51:58,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:51:58,007 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 353 transitions. [2021-10-24 09:51:58,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:51:58,008 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 353 transitions. [2021-10-24 09:51:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 09:51:58,009 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:51:58,010 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:51:58,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 09:51:58,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:51:58,222 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:51:58,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:51:58,223 INFO L82 PathProgramCache]: Analyzing trace with hash 238557114, now seen corresponding path program 1 times [2021-10-24 09:51:58,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:51:58,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766354171] [2021-10-24 09:51:58,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:51:58,224 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:51:58,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:51:58,225 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:51:58,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 09:51:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:51:59,475 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 09:52:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 09:52:00,785 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-24 09:52:00,786 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 09:52:00,787 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:52:00,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:52:00,789 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:52:00,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 09:52:01,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:52:01,014 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:52:01,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:52:01 BoogieIcfgContainer [2021-10-24 09:52:01,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:52:01,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:52:01,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:52:01,150 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:52:01,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:51:54" (3/4) ... [2021-10-24 09:52:01,152 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-24 09:52:01,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 09:52:01,258 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:52:01,259 INFO L168 Benchmark]: Toolchain (without parser) took 10750.28 ms. Allocated memory was 60.8 MB in the beginning and 100.7 MB in the end (delta: 39.8 MB). Free memory was 40.1 MB in the beginning and 70.3 MB in the end (delta: -30.2 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,260 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:52:01,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 599.39 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 33.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.80 ms. Allocated memory is still 60.8 MB. Free memory was 33.1 MB in the beginning and 29.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,261 INFO L168 Benchmark]: Boogie Preprocessor took 83.54 ms. Allocated memory is still 60.8 MB. Free memory was 29.1 MB in the beginning and 26.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,262 INFO L168 Benchmark]: RCFGBuilder took 2715.85 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 26.1 MB in the beginning and 45.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,262 INFO L168 Benchmark]: TraceAbstraction took 7096.63 ms. Allocated memory was 77.6 MB in the beginning and 100.7 MB in the end (delta: 23.1 MB). Free memory was 44.9 MB in the beginning and 36.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,263 INFO L168 Benchmark]: Witness Printer took 108.20 ms. Allocated memory is still 100.7 MB. Free memory was 36.0 MB in the beginning and 70.3 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:52:01,266 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 60.8 MB. Free memory is still 42.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 599.39 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 33.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.80 ms. Allocated memory is still 60.8 MB. Free memory was 33.1 MB in the beginning and 29.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.54 ms. Allocated memory is still 60.8 MB. Free memory was 29.1 MB in the beginning and 26.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2715.85 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 26.1 MB in the beginning and 45.2 MB in the end (delta: -19.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7096.63 ms. Allocated memory was 77.6 MB in the beginning and 100.7 MB in the end (delta: 23.1 MB). Free memory was 44.9 MB in the beginning and 36.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * Witness Printer took 108.20 ms. Allocated memory is still 100.7 MB. Free memory was 36.0 MB in the beginning and 70.3 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.4 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: 704]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L720] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L722] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L728] tmp = __VERIFIER_nondet_int() [L730] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L442] COND TRUE waterLevel < 2 [L443] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND FALSE !(\read(tmp___2)) [L754] tmp___1 = __VERIFIER_nondet_int() [L756] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L997] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L1004] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L786] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L793] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L679] tmp___0 = getWaterLevel() [L681] COND TRUE tmp___0 == 2 [L911] int retValue_acc ; [L914] retValue_acc = pumpRunning [L915] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L683] tmp___1 = isPumpRunning() [L685] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L704] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 704]: 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: 704]: 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, 143 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 6895.2ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 19.3ms, AutomataDifference: 746.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 578 SDtfs, 1486 SDslu, 1049 SDs, 0 SdLazy, 172 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 246.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 184.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=251occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 125.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 812 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 137.0ms SsaConstructionTime, 1733.3ms SatisfiabilityAnalysisTime, 1003.3ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-24 09:52:01,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ad98fdb-2ec5-4f7b-9900-72b731926fde/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...