./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.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_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/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_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/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_bd4ee697-6dbe-447b-bb69-d32577a12567/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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 ............................................................................................................................................ 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_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/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_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/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_bd4ee697-6dbe-447b-bb69-d32577a12567/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 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 09:46:36,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:46:36,907 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:46:36,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:46:36,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:46:36,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:46:36,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:46:36,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:46:36,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:46:36,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:46:36,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:46:36,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:46:36,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:46:36,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:46:36,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:46:36,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:46:36,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:46:36,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:46:36,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:46:36,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:46:36,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:46:36,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:46:36,976 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:46:36,977 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:46:36,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:46:36,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:46:36,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:46:36,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:46:36,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:46:36,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:46:36,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:46:36,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:46:36,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:46:36,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:46:36,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:46:36,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:46:36,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:46:36,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:46:36,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:46:36,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:46:36,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:46:36,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 09:46:37,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:46:37,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:46:37,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:46:37,045 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:46:37,045 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:46:37,045 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:46:37,045 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 09:46:37,045 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:46:37,052 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:46:37,052 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 09:46:37,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 09:46:37,053 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:46:37,054 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 09:46:37,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 09:46:37,054 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 09:46:37,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:46:37,055 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:46:37,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 09:46:37,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:46:37,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:46:37,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:46:37,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:46:37,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:46:37,061 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:46:37,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:46:37,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:46:37,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:46:37,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:46:37,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:46:37,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:46:37,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:37,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:46:37,064 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:46:37,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:46:37,065 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 09:46:37,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 09:46:37,065 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:46:37,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:46:37,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:46:37,066 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_bd4ee697-6dbe-447b-bb69-d32577a12567/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2021-10-24 09:46:37,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:46:37,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:46:37,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:46:37,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:46:37,373 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:46:37,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-10-24 09:46:37,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/3d15ad0d9/984b5a9cb5a64f06836875bf8c7d93a7/FLAG46dab96ba [2021-10-24 09:46:38,027 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:46:38,027 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-10-24 09:46:38,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/3d15ad0d9/984b5a9cb5a64f06836875bf8c7d93a7/FLAG46dab96ba [2021-10-24 09:46:38,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/3d15ad0d9/984b5a9cb5a64f06836875bf8c7d93a7 [2021-10-24 09:46:38,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:46:38,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:46:38,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:38,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:46:38,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:46:38,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:38" (1/1) ... [2021-10-24 09:46:38,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6e41c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:38, skipping insertion in model container [2021-10-24 09:46:38,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:38" (1/1) ... [2021-10-24 09:46:38,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:46:38,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:46:38,620 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_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-10-24 09:46:38,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:38,653 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 09:46:38,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14fc70e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:38, skipping insertion in model container [2021-10-24 09:46:38,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:38,655 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 09:46:38,657 INFO L168 Benchmark]: Toolchain (without parser) took 357.77 ms. Allocated memory is still 90.2 MB. Free memory was 69.5 MB in the beginning and 63.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:38,658 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 66.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:46:38,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.26 ms. Allocated memory is still 90.2 MB. Free memory was 69.5 MB in the beginning and 63.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:46:38,660 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 90.2 MB. Free memory is still 66.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 355.26 ms. Allocated memory is still 90.2 MB. Free memory was 69.5 MB in the beginning and 63.2 MB in the end (delta: 6.3 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 09:46:40,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 09:46:40,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 09:46:40,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 09:46:40,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 09:46:40,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 09:46:40,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 09:46:40,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 09:46:40,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 09:46:40,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 09:46:40,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 09:46:40,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 09:46:40,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 09:46:40,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 09:46:40,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 09:46:40,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 09:46:40,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 09:46:40,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 09:46:40,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 09:46:40,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 09:46:40,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 09:46:40,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 09:46:40,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 09:46:40,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 09:46:40,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 09:46:40,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 09:46:40,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 09:46:40,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 09:46:40,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 09:46:40,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 09:46:40,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 09:46:40,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 09:46:40,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 09:46:40,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 09:46:40,982 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 09:46:40,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 09:46:40,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 09:46:40,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 09:46:40,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 09:46:40,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 09:46:40,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 09:46:40,987 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 09:46:41,027 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 09:46:41,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 09:46:41,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 09:46:41,029 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 09:46:41,030 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 09:46:41,030 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 09:46:41,030 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 09:46:41,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 09:46:41,030 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 09:46:41,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 09:46:41,033 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 09:46:41,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 09:46:41,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 09:46:41,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 09:46:41,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 09:46:41,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 09:46:41,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 09:46:41,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 09:46:41,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 09:46:41,035 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 09:46:41,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 09:46:41,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:41,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 09:46:41,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 09:46:41,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 09:46:41,036 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 09:46:41,037 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 09:46:41,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 09:46:41,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 09:46:41,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 09:46:41,038 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_bd4ee697-6dbe-447b-bb69-d32577a12567/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0552f986eafe304f33f56d4376c7c6a56e2d691e1035259c5c13e13b2a7157c1 [2021-10-24 09:46:41,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 09:46:41,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 09:46:41,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 09:46:41,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 09:46:41,423 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 09:46:41,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-10-24 09:46:41,494 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/00d7448e1/bd52bcc760664c849dabc49920a47ff9/FLAGf9ae32a9b [2021-10-24 09:46:42,101 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 09:46:42,102 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c [2021-10-24 09:46:42,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/00d7448e1/bd52bcc760664c849dabc49920a47ff9/FLAGf9ae32a9b [2021-10-24 09:46:42,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/data/00d7448e1/bd52bcc760664c849dabc49920a47ff9 [2021-10-24 09:46:42,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 09:46:42,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 09:46:42,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:42,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 09:46:42,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 09:46:42,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:42" (1/1) ... [2021-10-24 09:46:42,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2f73dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:42, skipping insertion in model container [2021-10-24 09:46:42,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:46:42" (1/1) ... [2021-10-24 09:46:42,380 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 09:46:42,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:46:42,748 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_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-10-24 09:46:42,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:42,817 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 09:46:42,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 09:46:42,927 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_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-10-24 09:46:42,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:42,957 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 09:46:43,029 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_bd4ee697-6dbe-447b-bb69-d32577a12567/sv-benchmarks/c/product-lines/minepump_spec3_product50.cil.c[15143,15156] [2021-10-24 09:46:43,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 09:46:43,079 INFO L208 MainTranslator]: Completed translation [2021-10-24 09:46:43,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43 WrapperNode [2021-10-24 09:46:43,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 09:46:43,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:43,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 09:46:43,082 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 09:46:43,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,106 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 09:46:43,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 09:46:43,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 09:46:43,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 09:46:43,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 09:46:43,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 09:46:43,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 09:46:43,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 09:46:43,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (1/1) ... [2021-10-24 09:46:43,273 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 09:46:43,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:46:43,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 09:46:43,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 09:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 09:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 09:46:43,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 09:46:43,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 09:46:45,905 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 09:46:45,905 INFO L299 CfgBuilder]: Removed 164 assume(true) statements. [2021-10-24 09:46:45,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:45 BoogieIcfgContainer [2021-10-24 09:46:45,908 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 09:46:45,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 09:46:45,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 09:46:45,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 09:46:45,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:46:42" (1/3) ... [2021-10-24 09:46:45,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4374f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:45, skipping insertion in model container [2021-10-24 09:46:45,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:46:43" (2/3) ... [2021-10-24 09:46:45,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4374f384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:46:45, skipping insertion in model container [2021-10-24 09:46:45,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:45" (3/3) ... [2021-10-24 09:46:45,928 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product50.cil.c [2021-10-24 09:46:45,933 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 09:46:45,933 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 09:46:45,975 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 09:46:45,981 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 09:46:45,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 09:46:46,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 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 09:46:46,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 09:46:46,010 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,011 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 09:46:46,011 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 09:46:46,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,021 INFO L82 PathProgramCache]: Analyzing trace with hash -370159664, now seen corresponding path program 1 times [2021-10-24 09:46:46,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:46,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464856234] [2021-10-24 09:46:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,039 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:46,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:46,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:46,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 09:46:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:46,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 09:46:46,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:46,409 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 09:46:46,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:46,480 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 09:46:46,481 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:46,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464856234] [2021-10-24 09:46:46,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1464856234] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:46,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:46,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 09:46:46,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45916006] [2021-10-24 09:46:46,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 09:46:46,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:46,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 09:46:46,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 09:46:46,510 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 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 09:46:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:46,562 INFO L93 Difference]: Finished difference Result 240 states and 365 transitions. [2021-10-24 09:46:46,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 09:46:46,563 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 09:46:46,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:46,577 INFO L225 Difference]: With dead ends: 240 [2021-10-24 09:46:46,577 INFO L226 Difference]: Without dead ends: 119 [2021-10-24 09:46:46,580 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 09:46:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-24 09:46:46,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-24 09:46:46,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5) internal successors, (174), 118 states have internal predecessors, (174), 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 09:46:46,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 174 transitions. [2021-10-24 09:46:46,636 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 174 transitions. Word has length 18 [2021-10-24 09:46:46,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:46,637 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 174 transitions. [2021-10-24 09:46:46,637 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 09:46:46,637 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 174 transitions. [2021-10-24 09:46:46,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 09:46:46,641 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:46,641 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 09:46:46,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:46,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:46,864 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 09:46:46,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:46,866 INFO L82 PathProgramCache]: Analyzing trace with hash -37103251, now seen corresponding path program 1 times [2021-10-24 09:46:46,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:46,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [33104826] [2021-10-24 09:46:46,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:46,867 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:46,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:46,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 09:46:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:47,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:47,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:47,149 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 09:46:47,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:47,207 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 09:46:47,207 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:47,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [33104826] [2021-10-24 09:46:47,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [33104826] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:47,208 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:47,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:46:47,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003217309] [2021-10-24 09:46:47,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:47,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:47,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:47,212 INFO L87 Difference]: Start difference. First operand 119 states and 174 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 09:46:47,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:47,226 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2021-10-24 09:46:47,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:47,227 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 09:46:47,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:47,228 INFO L225 Difference]: With dead ends: 119 [2021-10-24 09:46:47,228 INFO L226 Difference]: Without dead ends: 49 [2021-10-24 09:46:47,229 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:47,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-24 09:46:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-24 09:46:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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 09:46:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-24 09:46:47,239 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-24 09:46:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:47,239 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-24 09:46:47,240 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 09:46:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-24 09:46:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 09:46:47,242 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:47,243 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 09:46:47,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:47,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:47,454 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 09:46:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:47,455 INFO L82 PathProgramCache]: Analyzing trace with hash 1803952717, now seen corresponding path program 1 times [2021-10-24 09:46:47,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:47,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930610143] [2021-10-24 09:46:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:47,456 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:47,458 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:47,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 09:46:47,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:47,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:47,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:47,766 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 09:46:47,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:47,841 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 09:46:47,841 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:47,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930610143] [2021-10-24 09:46:47,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930610143] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:47,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:47,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 09:46:47,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250136832] [2021-10-24 09:46:47,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:47,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:47,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:47,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:47,848 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:47,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:47,916 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2021-10-24 09:46:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:47,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 09:46:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:47,921 INFO L225 Difference]: With dead ends: 92 [2021-10-24 09:46:47,921 INFO L226 Difference]: Without dead ends: 49 [2021-10-24 09:46:47,922 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:47,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-24 09:46:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-24 09:46:47,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 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 09:46:47,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2021-10-24 09:46:47,934 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2021-10-24 09:46:47,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:47,935 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2021-10-24 09:46:47,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-10-24 09:46:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 09:46:47,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:47,938 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 09:46:47,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:48,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:48,153 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 09:46:48,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:48,154 INFO L82 PathProgramCache]: Analyzing trace with hash -1055002865, now seen corresponding path program 1 times [2021-10-24 09:46:48,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:48,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1581090430] [2021-10-24 09:46:48,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:48,156 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:48,162 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:48,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 09:46:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:48,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 09:46:48,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:48,479 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 09:46:48,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:48,560 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 09:46:48,560 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:48,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1581090430] [2021-10-24 09:46:48,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1581090430] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:48,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:48,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 09:46:48,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791497026] [2021-10-24 09:46:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 09:46:48,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:48,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 09:46:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:48,563 INFO L87 Difference]: Start difference. First operand 49 states and 70 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 09:46:48,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:48,613 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2021-10-24 09:46:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 09:46:48,614 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 09:46:48,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:48,615 INFO L225 Difference]: With dead ends: 115 [2021-10-24 09:46:48,615 INFO L226 Difference]: Without dead ends: 72 [2021-10-24 09:46:48,616 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 09:46:48,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-24 09:46:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2021-10-24 09:46:48,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:46:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2021-10-24 09:46:48,623 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 99 transitions. Word has length 26 [2021-10-24 09:46:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:48,624 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 99 transitions. [2021-10-24 09:46:48,624 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 09:46:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-10-24 09:46:48,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 09:46:48,625 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:48,626 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, 1, 1, 1, 1] [2021-10-24 09:46:48,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:48,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:48,838 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 09:46:48,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:48,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1200859520, now seen corresponding path program 1 times [2021-10-24 09:46:48,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:48,839 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1066538749] [2021-10-24 09:46:48,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:48,840 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:48,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:48,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 09:46:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:49,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:46:49,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:49,183 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 09:46:49,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:49,260 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 09:46:49,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:49,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1066538749] [2021-10-24 09:46:49,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1066538749] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:49,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:49,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 09:46:49,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814163504] [2021-10-24 09:46:49,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:49,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:49,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:49,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:49,263 INFO L87 Difference]: Start difference. First operand 70 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 09:46:49,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:49,341 INFO L93 Difference]: Finished difference Result 187 states and 263 transitions. [2021-10-24 09:46:49,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:46:49,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 32 [2021-10-24 09:46:49,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:49,343 INFO L225 Difference]: With dead ends: 187 [2021-10-24 09:46:49,343 INFO L226 Difference]: Without dead ends: 123 [2021-10-24 09:46:49,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:46:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-24 09:46:49,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 76. [2021-10-24 09:46:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 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 09:46:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2021-10-24 09:46:49,353 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 32 [2021-10-24 09:46:49,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:49,354 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2021-10-24 09:46:49,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 09:46:49,354 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2021-10-24 09:46:49,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-24 09:46:49,355 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:49,355 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, 1, 1, 1, 1] [2021-10-24 09:46:49,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:49,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:49,573 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 09:46:49,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:49,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1966711683, now seen corresponding path program 1 times [2021-10-24 09:46:49,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:49,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [141420835] [2021-10-24 09:46:49,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:49,575 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:49,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:49,576 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:49,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 09:46:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:49,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:46:49,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:49,973 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 09:46:49,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:50,122 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 09:46:50,122 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:50,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [141420835] [2021-10-24 09:46:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [141420835] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:50,123 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:50,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-24 09:46:50,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372826455] [2021-10-24 09:46:50,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:46:50,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:50,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:46:50,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:46:50,125 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 09:46:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:50,535 INFO L93 Difference]: Finished difference Result 841 states and 1196 transitions. [2021-10-24 09:46:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-24 09:46:50,536 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 32 [2021-10-24 09:46:50,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:50,541 INFO L225 Difference]: With dead ends: 841 [2021-10-24 09:46:50,541 INFO L226 Difference]: Without dead ends: 771 [2021-10-24 09:46:50,543 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 134.4ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-24 09:46:50,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-10-24 09:46:50,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 186. [2021-10-24 09:46:50,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 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 09:46:50,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-24 09:46:50,574 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 32 [2021-10-24 09:46:50,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:50,575 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-24 09:46:50,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 09:46:50,575 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-24 09:46:50,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:46:50,577 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:50,577 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, 1, 1, 1, 1, 1] [2021-10-24 09:46:50,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:50,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:50,794 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:50,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:50,794 INFO L82 PathProgramCache]: Analyzing trace with hash -115452097, now seen corresponding path program 1 times [2021-10-24 09:46:50,795 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:50,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413080000] [2021-10-24 09:46:50,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:50,795 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:50,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:50,798 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:50,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 09:46:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:51,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:46:51,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:51,154 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 09:46:51,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:51,220 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 09:46:51,220 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:51,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413080000] [2021-10-24 09:46:51,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1413080000] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:51,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:51,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 09:46:51,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506522687] [2021-10-24 09:46:51,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 09:46:51,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:51,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 09:46:51,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-24 09:46:51,223 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 09:46:51,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:51,297 INFO L93 Difference]: Finished difference Result 470 states and 656 transitions. [2021-10-24 09:46:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:51,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-10-24 09:46:51,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:51,301 INFO L225 Difference]: With dead ends: 470 [2021-10-24 09:46:51,302 INFO L226 Difference]: Without dead ends: 337 [2021-10-24 09:46:51,303 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-24 09:46:51,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 184. [2021-10-24 09:46:51,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 183 states have internal predecessors, (251), 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 09:46:51,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2021-10-24 09:46:51,338 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 33 [2021-10-24 09:46:51,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:51,338 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2021-10-24 09:46:51,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 09:46:51,339 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2021-10-24 09:46:51,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:46:51,344 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:51,344 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, 1, 1, 1, 1, 1] [2021-10-24 09:46:51,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:51,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:51,557 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:51,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:51,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1270109434, now seen corresponding path program 1 times [2021-10-24 09:46:51,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:51,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61432873] [2021-10-24 09:46:51,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:51,559 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:51,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:51,568 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:51,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 09:46:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:51,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:46:51,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:51,939 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 09:46:51,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:52,050 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 09:46:52,050 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:52,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61432873] [2021-10-24 09:46:52,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61432873] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:52,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:52,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 09:46:52,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065207632] [2021-10-24 09:46:52,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:46:52,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:52,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:46:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:46:52,052 INFO L87 Difference]: Start difference. First operand 184 states and 251 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 09:46:55,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:55,035 INFO L93 Difference]: Finished difference Result 519 states and 720 transitions. [2021-10-24 09:46:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 09:46:55,036 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 33 [2021-10-24 09:46:55,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:55,040 INFO L225 Difference]: With dead ends: 519 [2021-10-24 09:46:55,040 INFO L226 Difference]: Without dead ends: 341 [2021-10-24 09:46:55,042 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-24 09:46:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-24 09:46:55,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 155. [2021-10-24 09:46:55,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 154 states have internal predecessors, (203), 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 09:46:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2021-10-24 09:46:55,067 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 33 [2021-10-24 09:46:55,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:55,067 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2021-10-24 09:46:55,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 09:46:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2021-10-24 09:46:55,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-24 09:46:55,072 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:55,072 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, 1, 1, 1, 1, 1] [2021-10-24 09:46:55,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:55,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:55,286 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:55,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:55,286 INFO L82 PathProgramCache]: Analyzing trace with hash 142713341, now seen corresponding path program 1 times [2021-10-24 09:46:55,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:55,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1323047861] [2021-10-24 09:46:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:55,287 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:55,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:55,288 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:55,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 09:46:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:55,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:46:55,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:55,692 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 09:46:55,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:55,781 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 09:46:55,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:55,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1323047861] [2021-10-24 09:46:55,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1323047861] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:55,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:55,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 09:46:55,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504602101] [2021-10-24 09:46:55,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:46:55,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:46:55,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:46:55,786 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 09:46:55,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:55,876 INFO L93 Difference]: Finished difference Result 415 states and 551 transitions. [2021-10-24 09:46:55,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:46:55,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 33 [2021-10-24 09:46:55,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:55,880 INFO L225 Difference]: With dead ends: 415 [2021-10-24 09:46:55,881 INFO L226 Difference]: Without dead ends: 266 [2021-10-24 09:46:55,881 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 56.7ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-24 09:46:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-24 09:46:55,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 155. [2021-10-24 09:46:55,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2987012987012987) internal successors, (200), 154 states have internal predecessors, (200), 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 09:46:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2021-10-24 09:46:55,905 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 33 [2021-10-24 09:46:55,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:55,905 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2021-10-24 09:46:55,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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 09:46:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2021-10-24 09:46:55,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-24 09:46:55,907 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:55,908 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-10-24 09:46:55,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:56,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,121 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:56,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:56,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1874280989, now seen corresponding path program 1 times [2021-10-24 09:46:56,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:56,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329206519] [2021-10-24 09:46:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:56,123 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:56,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:56,124 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:56,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 09:46:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:56,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 09:46:56,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:56,626 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 09:46:56,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:56,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-24 09:46:56,813 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:56,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1329206519] [2021-10-24 09:46:56,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1329206519] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:56,813 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:56,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-24 09:46:56,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298542150] [2021-10-24 09:46:56,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:46:56,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:56,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:46:56,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:46:56,815 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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 09:46:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:58,246 INFO L93 Difference]: Finished difference Result 519 states and 694 transitions. [2021-10-24 09:46:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:46:58,247 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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 53 [2021-10-24 09:46:58,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:58,250 INFO L225 Difference]: With dead ends: 519 [2021-10-24 09:46:58,250 INFO L226 Difference]: Without dead ends: 417 [2021-10-24 09:46:58,251 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 39.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:46:58,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-24 09:46:58,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 351. [2021-10-24 09:46:58,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.3114285714285714) internal successors, (459), 350 states have internal predecessors, (459), 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 09:46:58,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 459 transitions. [2021-10-24 09:46:58,333 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 459 transitions. Word has length 53 [2021-10-24 09:46:58,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:58,333 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 459 transitions. [2021-10-24 09:46:58,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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 09:46:58,334 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 459 transitions. [2021-10-24 09:46:58,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-24 09:46:58,335 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:58,335 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1] [2021-10-24 09:46:58,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:58,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,549 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:58,549 INFO L82 PathProgramCache]: Analyzing trace with hash 176703009, now seen corresponding path program 1 times [2021-10-24 09:46:58,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:58,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374079506] [2021-10-24 09:46:58,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:58,550 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:58,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:58,551 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:58,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 09:46:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:46:58,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:46:58,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:46:59,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:59,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:46:59,247 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:46:59,248 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:46:59,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374079506] [2021-10-24 09:46:59,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374079506] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:46:59,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:46:59,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 09:46:59,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684444116] [2021-10-24 09:46:59,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:46:59,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:46:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:46:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 09:46:59,250 INFO L87 Difference]: Start difference. First operand 351 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 09:46:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:46:59,579 INFO L93 Difference]: Finished difference Result 1844 states and 2379 transitions. [2021-10-24 09:46:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 09:46:59,580 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2021-10-24 09:46:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:46:59,589 INFO L225 Difference]: With dead ends: 1844 [2021-10-24 09:46:59,589 INFO L226 Difference]: Without dead ends: 1499 [2021-10-24 09:46:59,590 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:46:59,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-10-24 09:46:59,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 694. [2021-10-24 09:46:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.274170274170274) internal successors, (883), 693 states have internal predecessors, (883), 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 09:46:59,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 883 transitions. [2021-10-24 09:46:59,726 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 883 transitions. Word has length 53 [2021-10-24 09:46:59,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:46:59,727 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 883 transitions. [2021-10-24 09:46:59,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 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 09:46:59,727 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 883 transitions. [2021-10-24 09:46:59,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-24 09:46:59,729 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:46:59,729 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:46:59,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 09:46:59,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:46:59,941 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:46:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:46:59,941 INFO L82 PathProgramCache]: Analyzing trace with hash 53419547, now seen corresponding path program 1 times [2021-10-24 09:46:59,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:46:59,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356306131] [2021-10-24 09:46:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:46:59,942 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:46:59,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:46:59,943 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:46:59,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-24 09:47:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:00,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:00,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:00,468 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 09:47:00,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:00,701 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 09:47:00,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:00,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356306131] [2021-10-24 09:47:00,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356306131] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:00,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1177430858] [2021-10-24 09:47:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:00,702 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:00,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:47:00,704 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:47:00,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-24 09:47:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:01,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:01,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:47:01,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 09:47:01,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1177430858] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:01,432 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-24 09:47:01,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-10-24 09:47:01,432 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588591069] [2021-10-24 09:47:01,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 09:47:01,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:01,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 09:47:01,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-24 09:47:01,433 INFO L87 Difference]: Start difference. First operand 694 states and 883 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:01,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:01,643 INFO L93 Difference]: Finished difference Result 1588 states and 2039 transitions. [2021-10-24 09:47:01,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 09:47:01,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-24 09:47:01,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:01,649 INFO L225 Difference]: With dead ends: 1588 [2021-10-24 09:47:01,650 INFO L226 Difference]: Without dead ends: 990 [2021-10-24 09:47:01,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 98.2ms TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-24 09:47:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-10-24 09:47:01,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 718. [2021-10-24 09:47:01,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.2649930264993026) internal successors, (907), 717 states have internal predecessors, (907), 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 09:47:01,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 907 transitions. [2021-10-24 09:47:01,769 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 907 transitions. Word has length 54 [2021-10-24 09:47:01,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:01,769 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 907 transitions. [2021-10-24 09:47:01,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:01,770 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 907 transitions. [2021-10-24 09:47:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-24 09:47:01,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:01,771 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:01,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:01,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-24 09:47:02,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:02,185 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:02,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash 311584985, now seen corresponding path program 1 times [2021-10-24 09:47:02,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:02,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1176999906] [2021-10-24 09:47:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:02,186 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:02,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:02,188 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:02,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-24 09:47:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:02,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:02,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:02,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:02,960 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:02,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:02,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1176999906] [2021-10-24 09:47:02,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1176999906] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:02,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1845721753] [2021-10-24 09:47:02,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:02,961 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:02,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:47:02,962 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:47:02,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-24 09:47:03,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:03,452 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-24 09:47:03,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:03,636 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:03,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:03,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:03,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1845721753] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:03,809 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782638610] [2021-10-24 09:47:03,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:03,809 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:47:03,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:47:03,814 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:47:03,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-24 09:47:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:04,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:04,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:04,405 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:04,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:04,563 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:04,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782638610] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:04,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 09:47:04,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 5, 5] total 9 [2021-10-24 09:47:04,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930720186] [2021-10-24 09:47:04,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-24 09:47:04,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:04,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-24 09:47:04,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-24 09:47:04,566 INFO L87 Difference]: Start difference. First operand 718 states and 907 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 09:47:06,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:06,186 INFO L93 Difference]: Finished difference Result 1758 states and 2207 transitions. [2021-10-24 09:47:06,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-24 09:47:06,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 54 [2021-10-24 09:47:06,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:06,193 INFO L225 Difference]: With dead ends: 1758 [2021-10-24 09:47:06,194 INFO L226 Difference]: Without dead ends: 1046 [2021-10-24 09:47:06,195 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 92.0ms TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2021-10-24 09:47:06,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-10-24 09:47:06,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 633. [2021-10-24 09:47:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 1.231012658227848) internal successors, (778), 632 states have internal predecessors, (778), 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 09:47:06,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 778 transitions. [2021-10-24 09:47:06,274 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 778 transitions. Word has length 54 [2021-10-24 09:47:06,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:06,274 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 778 transitions. [2021-10-24 09:47:06,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 9 states have internal predecessors, (86), 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 09:47:06,275 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 778 transitions. [2021-10-24 09:47:06,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-24 09:47:06,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:06,276 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2021-10-24 09:47:06,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:06,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:06,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:06,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:06,882 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:06,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:06,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1497135604, now seen corresponding path program 1 times [2021-10-24 09:47:06,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:06,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034448473] [2021-10-24 09:47:06,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:06,883 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:06,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:06,884 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:06,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 09:47:07,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:07,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-24 09:47:07,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:07,468 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:07,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 09:47:07,625 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:07,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034448473] [2021-10-24 09:47:07,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034448473] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:07,625 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:07,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 09:47:07,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895435562] [2021-10-24 09:47:07,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:07,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:07,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:07,627 INFO L87 Difference]: Start difference. First operand 633 states and 778 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 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 09:47:09,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:09,497 INFO L93 Difference]: Finished difference Result 2455 states and 3007 transitions. [2021-10-24 09:47:09,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-24 09:47:09,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 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 55 [2021-10-24 09:47:09,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:09,508 INFO L225 Difference]: With dead ends: 2455 [2021-10-24 09:47:09,509 INFO L226 Difference]: Without dead ends: 1914 [2021-10-24 09:47:09,510 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-10-24 09:47:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-10-24 09:47:09,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 811. [2021-10-24 09:47:09,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 810 states have (on average 1.2209876543209877) internal successors, (989), 810 states have internal predecessors, (989), 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 09:47:09,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 989 transitions. [2021-10-24 09:47:09,647 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 989 transitions. Word has length 55 [2021-10-24 09:47:09,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:09,647 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 989 transitions. [2021-10-24 09:47:09,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 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 09:47:09,648 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 989 transitions. [2021-10-24 09:47:09,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-24 09:47:09,649 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:09,649 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 09:47:09,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:09,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:09,863 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:09,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:09,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1078461655, now seen corresponding path program 1 times [2021-10-24 09:47:09,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:09,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810282502] [2021-10-24 09:47:09,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:09,864 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:09,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:09,865 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:09,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-24 09:47:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:10,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:10,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:10,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:10,707 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:10,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:10,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810282502] [2021-10-24 09:47:10,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810282502] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:10,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1362927012] [2021-10-24 09:47:10,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:10,708 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:10,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:47:10,709 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:47:10,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-24 09:47:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:11,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:11,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:11,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:11,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1362927012] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:11,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807394178] [2021-10-24 09:47:11,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:11,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:47:11,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:47:11,647 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:47:11,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-24 09:47:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:12,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:12,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:12,344 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:12,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-24 09:47:12,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807394178] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:12,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-24 09:47:12,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-24 09:47:12,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605335335] [2021-10-24 09:47:12,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 09:47:12,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:12,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 09:47:12,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-24 09:47:12,499 INFO L87 Difference]: Start difference. First operand 811 states and 989 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:15,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:15,141 INFO L93 Difference]: Finished difference Result 5152 states and 6370 transitions. [2021-10-24 09:47:15,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-24 09:47:15,141 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-24 09:47:15,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:15,166 INFO L225 Difference]: With dead ends: 5152 [2021-10-24 09:47:15,166 INFO L226 Difference]: Without dead ends: 4433 [2021-10-24 09:47:15,169 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 325.2ms TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2021-10-24 09:47:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-10-24 09:47:15,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 986. [2021-10-24 09:47:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 1.233502538071066) internal successors, (1215), 985 states have internal predecessors, (1215), 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 09:47:15,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1215 transitions. [2021-10-24 09:47:15,387 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1215 transitions. Word has length 55 [2021-10-24 09:47:15,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:15,388 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1215 transitions. [2021-10-24 09:47:15,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 09:47:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1215 transitions. [2021-10-24 09:47:15,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-24 09:47:15,391 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:15,391 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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 09:47:15,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:15,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:15,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:15,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:15,995 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:15,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1906713815, now seen corresponding path program 1 times [2021-10-24 09:47:15,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:15,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805332596] [2021-10-24 09:47:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:15,996 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:15,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:15,997 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:16,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-24 09:47:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:16,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 09:47:16,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-24 09:47:16,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:16,936 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-24 09:47:16,936 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:16,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805332596] [2021-10-24 09:47:16,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805332596] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:16,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:16,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 09:47:16,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459181318] [2021-10-24 09:47:16,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 09:47:16,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:16,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 09:47:16,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 09:47:16,938 INFO L87 Difference]: Start difference. First operand 986 states and 1215 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 09:47:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:17,090 INFO L93 Difference]: Finished difference Result 2102 states and 2600 transitions. [2021-10-24 09:47:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 09:47:17,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 96 [2021-10-24 09:47:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:17,096 INFO L225 Difference]: With dead ends: 2102 [2021-10-24 09:47:17,096 INFO L226 Difference]: Without dead ends: 1122 [2021-10-24 09:47:17,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 19.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 09:47:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2021-10-24 09:47:17,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 936. [2021-10-24 09:47:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 935 states have (on average 1.2310160427807486) internal successors, (1151), 935 states have internal predecessors, (1151), 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 09:47:17,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1151 transitions. [2021-10-24 09:47:17,273 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1151 transitions. Word has length 96 [2021-10-24 09:47:17,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:17,273 INFO L470 AbstractCegarLoop]: Abstraction has 936 states and 1151 transitions. [2021-10-24 09:47:17,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 09:47:17,274 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1151 transitions. [2021-10-24 09:47:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-24 09:47:17,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:17,277 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 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 09:47:17,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:17,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:17,483 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:17,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:17,483 INFO L82 PathProgramCache]: Analyzing trace with hash 103276133, now seen corresponding path program 1 times [2021-10-24 09:47:17,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:17,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177861986] [2021-10-24 09:47:17,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:17,484 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:17,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:17,485 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:17,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-24 09:47:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:18,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 09:47:18,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:18,404 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-24 09:47:18,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:18,736 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-24 09:47:18,737 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:18,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177861986] [2021-10-24 09:47:18,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177861986] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:18,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002193056] [2021-10-24 09:47:18,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:18,737 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 09:47:18,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 09:47:18,748 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 09:47:18,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-24 09:47:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:19,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-24 09:47:19,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-24 09:47:19,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-24 09:47:20,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2002193056] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 09:47:20,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79893403] [2021-10-24 09:47:20,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 09:47:20,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 09:47:20,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 09:47:20,376 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 09:47:20,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-24 09:47:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 09:47:21,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 09:47:21,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:21,523 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-24 09:47:21,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-24 09:47:21,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79893403] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-24 09:47:21,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-24 09:47:21,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 8, 8, 8] total 24 [2021-10-24 09:47:21,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225875264] [2021-10-24 09:47:21,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:47:21,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:21,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:47:21,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-10-24 09:47:21,884 INFO L87 Difference]: Start difference. First operand 936 states and 1151 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 09:47:25,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:25,591 INFO L93 Difference]: Finished difference Result 2941 states and 3657 transitions. [2021-10-24 09:47:25,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-24 09:47:25,592 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 118 [2021-10-24 09:47:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:25,602 INFO L225 Difference]: With dead ends: 2941 [2021-10-24 09:47:25,602 INFO L226 Difference]: Without dead ends: 2011 [2021-10-24 09:47:25,605 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 571.5ms TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2021-10-24 09:47:25,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2021-10-24 09:47:25,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1127. [2021-10-24 09:47:25,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.2344582593250444) internal successors, (1390), 1126 states have internal predecessors, (1390), 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 09:47:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1390 transitions. [2021-10-24 09:47:25,856 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1390 transitions. Word has length 118 [2021-10-24 09:47:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:25,857 INFO L470 AbstractCegarLoop]: Abstraction has 1127 states and 1390 transitions. [2021-10-24 09:47:25,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 09:47:25,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1390 transitions. [2021-10-24 09:47:25,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-24 09:47:25,860 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 09:47:25,860 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 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 09:47:25,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:26,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2021-10-24 09:47:26,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-24 09:47:26,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:26,464 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 09:47:26,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 09:47:26,465 INFO L82 PathProgramCache]: Analyzing trace with hash 76923233, now seen corresponding path program 2 times [2021-10-24 09:47:26,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 09:47:26,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1685530310] [2021-10-24 09:47:26,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-24 09:47:26,466 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 09:47:26,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 09:47:26,467 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 09:47:26,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-24 09:47:28,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-24 09:47:28,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-24 09:47:28,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 09:47:28,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 09:47:28,518 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-24 09:47:28,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 09:47:28,800 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-24 09:47:28,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 09:47:28,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1685530310] [2021-10-24 09:47:28,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1685530310] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 09:47:28,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 09:47:28,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 09:47:28,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117816677] [2021-10-24 09:47:28,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 09:47:28,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 09:47:28,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 09:47:28,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 09:47:28,803 INFO L87 Difference]: Start difference. First operand 1127 states and 1390 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 09:47:28,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 09:47:28,898 INFO L93 Difference]: Finished difference Result 1431 states and 1754 transitions. [2021-10-24 09:47:28,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 09:47:28,899 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 118 [2021-10-24 09:47:28,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 09:47:28,899 INFO L225 Difference]: With dead ends: 1431 [2021-10-24 09:47:28,899 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 09:47:28,901 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 50.4ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-24 09:47:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 09:47:28,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 09:47:28,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 09:47:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 09:47:28,902 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2021-10-24 09:47:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 09:47:28,902 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 09:47:28,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 09:47:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 09:47:28,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 09:47:28,905 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:28,905 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:28,905 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 09:47:28,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0 [2021-10-24 09:47:29,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 09:47:29,108 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 09:47:29,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:29,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:29,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:29,144 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:29,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:30,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:30,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:30,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:30,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:30,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:31,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,617 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,619 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,620 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,697 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:32,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:33,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:33,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 09:47:44,624 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,625 INFO L857 garLoopResultBuilder]: For program point L730(lines 730 736) no Hoare annotation was computed. [2021-10-24 09:47:44,625 INFO L853 garLoopResultBuilder]: At program point L730-1(lines 730 736) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse13 (= ~waterLevel~0 (_ bv1 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse1 .cse3 .cse11 .cse5 .cse6 .cse12) (and .cse1 .cse5 .cse6 .cse7 .cse13 .cse9 .cse10 .cse12) (and .cse1 .cse3 .cse5 .cse6 .cse7 .cse9 .cse10 .cse12) (and .cse1 .cse11 .cse5 .cse6 .cse13 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse5 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse6 .cse8))) [2021-10-24 09:47:44,625 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 470) no Hoare annotation was computed. [2021-10-24 09:47:44,625 INFO L857 garLoopResultBuilder]: For program point L466-3(lines 466 470) no Hoare annotation was computed. [2021-10-24 09:47:44,626 INFO L857 garLoopResultBuilder]: For program point L466-6(lines 466 470) no Hoare annotation was computed. [2021-10-24 09:47:44,626 INFO L853 garLoopResultBuilder]: At program point L897(lines 892 900) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0) (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|)) [2021-10-24 09:47:44,626 INFO L853 garLoopResultBuilder]: At program point L897-1(lines 892 900) the Hoare annotation is: false [2021-10-24 09:47:44,626 INFO L853 garLoopResultBuilder]: At program point L897-2(lines 892 900) the Hoare annotation is: false [2021-10-24 09:47:44,626 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 448) no Hoare annotation was computed. [2021-10-24 09:47:44,626 INFO L853 garLoopResultBuilder]: At program point L435-1(lines 1 982) the Hoare annotation is: (let ((.cse7 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse13 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ~waterLevel~0 (_ bv1 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (and .cse1 .cse5 .cse6 .cse7 .cse11 .cse9 .cse10 .cse12) (and .cse0 .cse1 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~0) .cse2 .cse3 .cse4 .cse13 .cse5 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse6 .cse8 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)) (and .cse1 .cse13 .cse5 .cse6 .cse11 .cse12))) [2021-10-24 09:47:44,626 INFO L857 garLoopResultBuilder]: For program point L435-2(lines 435 448) no Hoare annotation was computed. [2021-10-24 09:47:44,627 INFO L853 garLoopResultBuilder]: At program point L435-3(lines 1 982) the Hoare annotation is: false [2021-10-24 09:47:44,627 INFO L857 garLoopResultBuilder]: For program point L435-4(lines 435 448) no Hoare annotation was computed. [2021-10-24 09:47:44,627 INFO L853 garLoopResultBuilder]: At program point L435-5(lines 1 982) the Hoare annotation is: false [2021-10-24 09:47:44,627 INFO L853 garLoopResultBuilder]: At program point L535(lines 530 538) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse3 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~3 (_ bv0 32))) (.cse4 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse5 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)) (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) .cse0 (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32)) .cse1 .cse2 .cse3 .cse4 .cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|)))) [2021-10-24 09:47:44,627 INFO L853 garLoopResultBuilder]: At program point L535-1(lines 530 538) the Hoare annotation is: false [2021-10-24 09:47:44,627 INFO L853 garLoopResultBuilder]: At program point L535-2(lines 530 538) the Hoare annotation is: false [2021-10-24 09:47:44,627 INFO L857 garLoopResultBuilder]: For program point L965(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,627 INFO L857 garLoopResultBuilder]: For program point L965-2(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,627 INFO L857 garLoopResultBuilder]: For program point L965-3(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,628 INFO L857 garLoopResultBuilder]: For program point L965-5(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,628 INFO L857 garLoopResultBuilder]: For program point L965-6(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,628 INFO L857 garLoopResultBuilder]: For program point L965-8(lines 965 969) no Hoare annotation was computed. [2021-10-24 09:47:44,628 INFO L853 garLoopResultBuilder]: At program point L503(lines 498 506) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 (_ bv2 32)))) (let ((.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse13 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse10 (not .cse3)) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse14 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse11 (= ~waterLevel~0 (_ bv1 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse1 .cse10 .cse5 .cse6 .cse11 .cse8 .cse9 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse13 .cse5 .cse14 .cse6 .cse7) (and .cse1 .cse13 .cse10 .cse5 .cse14 .cse6 .cse11 .cse12)))) [2021-10-24 09:47:44,628 INFO L853 garLoopResultBuilder]: At program point L503-1(lines 498 506) the Hoare annotation is: false [2021-10-24 09:47:44,628 INFO L853 garLoopResultBuilder]: At program point L503-2(lines 498 506) the Hoare annotation is: false [2021-10-24 09:47:44,628 INFO L853 garLoopResultBuilder]: At program point L768(lines 719 769) the Hoare annotation is: false [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 445) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L439-2(lines 439 445) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L439-4(lines 439 445) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L704(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L704-1(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,629 INFO L857 garLoopResultBuilder]: For program point L704-2(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,630 INFO L853 garLoopResultBuilder]: At program point L971(lines 956 974) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse4 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~3 (_ bv1 32))) (.cse8 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32))) (.cse11 (= ULTIMATE.start_isLowWaterLevel_~tmp~9 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 (= ~methaneLevelCritical~0 (_ bv1 32))) (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11))) [2021-10-24 09:47:44,630 INFO L853 garLoopResultBuilder]: At program point L971-1(lines 956 974) the Hoare annotation is: false [2021-10-24 09:47:44,630 INFO L853 garLoopResultBuilder]: At program point L971-2(lines 956 974) the Hoare annotation is: false [2021-10-24 09:47:44,630 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 746) no Hoare annotation was computed. [2021-10-24 09:47:44,630 INFO L853 garLoopResultBuilder]: At program point L740-1(lines 740 746) the Hoare annotation is: (let ((.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse3 .cse5 .cse6 .cse8 .cse9) (and .cse1 .cse5 .cse6 .cse10 .cse8 .cse9) (and .cse1 .cse3 .cse11 .cse5 .cse6 .cse9) (and .cse1 .cse11 .cse5 .cse6 .cse10 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse5 .cse6 .cse7))) [2021-10-24 09:47:44,631 INFO L853 garLoopResultBuilder]: At program point L575-2(lines 575 589) the Hoare annotation is: false [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543-2(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543-3(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543-4(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L543-5(lines 543 549) no Hoare annotation was computed. [2021-10-24 09:47:44,631 INFO L857 garLoopResultBuilder]: For program point L478(lines 478 482) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L857 garLoopResultBuilder]: For program point L579-1(lines 786 792) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L857 garLoopResultBuilder]: For program point L844(lines 844 861) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L857 garLoopResultBuilder]: For program point L844-1(lines 844 861) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L857 garLoopResultBuilder]: For program point L844-2(lines 844 861) no Hoare annotation was computed. [2021-10-24 09:47:44,632 INFO L853 garLoopResultBuilder]: At program point L548(lines 539 552) the Hoare annotation is: false [2021-10-24 09:47:44,632 INFO L853 garLoopResultBuilder]: At program point L548-1(lines 539 552) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse5 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse7 .cse6) (and .cse0 .cse8 .cse2 .cse3 .cse4 .cse9 .cse6) (and .cse0 .cse8 .cse3 .cse4 .cse9 .cse7 .cse6))) [2021-10-24 09:47:44,632 INFO L853 garLoopResultBuilder]: At program point L548-2(lines 539 552) the Hoare annotation is: false [2021-10-24 09:47:44,632 INFO L853 garLoopResultBuilder]: At program point L548-3(lines 539 552) the Hoare annotation is: false [2021-10-24 09:47:44,633 INFO L853 garLoopResultBuilder]: At program point L548-4(lines 539 552) the Hoare annotation is: false [2021-10-24 09:47:44,633 INFO L853 garLoopResultBuilder]: At program point L548-5(lines 539 552) the Hoare annotation is: false [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-2(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-3(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-5(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-6(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-8(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-9(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-11(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-12(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-14(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,633 INFO L857 garLoopResultBuilder]: For program point L946-15(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L946-17(lines 946 950) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L848(lines 848 856) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L848-1(lines 848 856) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L848-2(lines 848 856) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L750(lines 750 763) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L651(lines 651 658) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L860 garLoopResultBuilder]: At program point L651-1(lines 651 658) the Hoare annotation is: true [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 09:47:44,634 INFO L857 garLoopResultBuilder]: For program point L818(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L857 garLoopResultBuilder]: For program point L818-1(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L857 garLoopResultBuilder]: For program point L818-2(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L857 garLoopResultBuilder]: For program point L818-3(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L857 garLoopResultBuilder]: For program point L818-4(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L857 garLoopResultBuilder]: For program point L818-5(lines 818 835) no Hoare annotation was computed. [2021-10-24 09:47:44,635 INFO L853 garLoopResultBuilder]: At program point L786(lines 785 804) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse7 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse8 (= (_ bv1 32) ~pumpRunning~0)) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 .cse6 .cse4 .cse5) (and .cse7 .cse0 .cse8 .cse9 .cse2 .cse3 .cse6 .cse10 .cse4) (and .cse0 .cse1 .cse11 .cse2 .cse3 .cse5) (and .cse7 .cse0 .cse8 .cse9 .cse11 .cse2 .cse3 .cse6 .cse10) (and .cse0 .cse11 .cse2 .cse3 .cse6 .cse5))) [2021-10-24 09:47:44,636 INFO L857 garLoopResultBuilder]: For program point L786-1(lines 786 792) no Hoare annotation was computed. [2021-10-24 09:47:44,636 INFO L853 garLoopResultBuilder]: At program point L786-2(lines 785 804) the Hoare annotation is: false [2021-10-24 09:47:44,636 INFO L853 garLoopResultBuilder]: At program point L687(lines 1 982) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 09:47:44,636 INFO L853 garLoopResultBuilder]: At program point L786-3(lines 785 804) the Hoare annotation is: false [2021-10-24 09:47:44,636 INFO L853 garLoopResultBuilder]: At program point L952(lines 937 955) the Hoare annotation is: false [2021-10-24 09:47:44,637 INFO L853 garLoopResultBuilder]: At program point L952-1(lines 937 955) the Hoare annotation is: (let ((.cse10 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse12 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse13 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse14 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv1 32))) (.cse15 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv0 32))) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~waterLevel~0 (_ bv2 32))) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse1 .cse10 .cse11 .cse4 .cse5 .cse12 .cse13 .cse14 .cse15 .cse9) (and .cse1 .cse10 .cse4 .cse5 .cse12 .cse13 .cse8 .cse14 .cse15 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4 .cse5 .cse6 .cse7 .cse9))) [2021-10-24 09:47:44,637 INFO L853 garLoopResultBuilder]: At program point L952-2(lines 937 955) the Hoare annotation is: false [2021-10-24 09:47:44,637 INFO L853 garLoopResultBuilder]: At program point L952-3(lines 937 955) the Hoare annotation is: false [2021-10-24 09:47:44,637 INFO L853 garLoopResultBuilder]: At program point L952-4(lines 937 955) the Hoare annotation is: false [2021-10-24 09:47:44,637 INFO L853 garLoopResultBuilder]: At program point L952-5(lines 937 955) the Hoare annotation is: false [2021-10-24 09:47:44,637 INFO L857 garLoopResultBuilder]: For program point L721(lines 720 767) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L490(lines 490 494) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 726) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L822(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L822-1(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L822-2(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,638 INFO L857 garLoopResultBuilder]: For program point L822-3(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,639 INFO L857 garLoopResultBuilder]: For program point L822-4(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,639 INFO L857 garLoopResultBuilder]: For program point L822-5(lines 822 830) no Hoare annotation was computed. [2021-10-24 09:47:44,639 INFO L853 garLoopResultBuilder]: At program point L624(lines 620 626) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 09:47:44,639 INFO L853 garLoopResultBuilder]: At program point L558(lines 553 561) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse4 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse4 .cse5 .cse6 .cse7 .cse8))) [2021-10-24 09:47:44,639 INFO L853 garLoopResultBuilder]: At program point L558-1(lines 553 561) the Hoare annotation is: false [2021-10-24 09:47:44,640 INFO L853 garLoopResultBuilder]: At program point L558-2(lines 553 561) the Hoare annotation is: false [2021-10-24 09:47:44,640 INFO L857 garLoopResultBuilder]: For program point L758(lines 758 762) no Hoare annotation was computed. [2021-10-24 09:47:44,640 INFO L853 garLoopResultBuilder]: At program point L758-2(lines 786 792) the Hoare annotation is: (let ((.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ~waterLevel~0 (_ bv1 32))) (.cse9 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse3 .cse5 .cse6 .cse8 .cse9) (and .cse1 .cse5 .cse6 .cse10 .cse8 .cse9) (and .cse1 .cse3 .cse11 .cse5 .cse6 .cse9) (and .cse1 .cse11 .cse5 .cse6 .cse10 .cse9) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse5 .cse6 .cse7))) [2021-10-24 09:47:44,640 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 09:47:44,640 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 704) no Hoare annotation was computed. [2021-10-24 09:47:44,640 INFO L860 garLoopResultBuilder]: At program point L660(lines 641 663) the Hoare annotation is: true [2021-10-24 09:47:44,641 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 449) no Hoare annotation was computed. [2021-10-24 09:47:44,641 INFO L857 garLoopResultBuilder]: For program point L429-2(lines 429 449) no Hoare annotation was computed. [2021-10-24 09:47:44,641 INFO L857 garLoopResultBuilder]: For program point L429-4(lines 429 449) no Hoare annotation was computed. [2021-10-24 09:47:44,641 INFO L853 garLoopResultBuilder]: At program point L793(lines 793 799) the Hoare annotation is: (let ((.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_valid_product_#res| (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse5 .cse6 .cse9 .cse8 .cse10) (and .cse1 .cse11 .cse5 .cse6 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse11 .cse5 .cse6 .cse7))) [2021-10-24 09:47:44,641 INFO L853 garLoopResultBuilder]: At program point L793-1(lines 793 799) the Hoare annotation is: false [2021-10-24 09:47:44,641 INFO L853 garLoopResultBuilder]: At program point L793-2(lines 793 799) the Hoare annotation is: false [2021-10-24 09:47:44,642 INFO L853 garLoopResultBuilder]: At program point L695(lines 690 698) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_valid_product_#res| (_ bv1 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 09:47:44,646 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 09:47:44,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:47:44 BoogieIcfgContainer [2021-10-24 09:47:44,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 09:47:44,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 09:47:44,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 09:47:44,685 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 09:47:44,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:46:45" (3/4) ... [2021-10-24 09:47:44,688 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 09:47:44,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-24 09:47:44,710 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-24 09:47:44,711 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-24 09:47:44,712 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 09:47:44,713 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 09:47:44,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 09:47:44,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 09:47:44,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((methaneLevelCritical == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-24 09:47:44,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((methaneLevelCritical == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning [2021-10-24 09:47:44,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 2bv32 == tmp___0) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 09:47:44,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-24 09:47:44,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-24 09:47:44,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-24 09:47:44,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 09:47:44,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-24 09:47:44,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((splverifierCounter == 0bv32 && !(waterLevel == 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && !(waterLevel == 2bv32)) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 09:47:44,745 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) [2021-10-24 09:47:44,746 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 09:47:44,747 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result) [2021-10-24 09:47:44,747 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp == 0bv32) [2021-10-24 09:47:44,748 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning) [2021-10-24 09:47:44,749 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 2bv32 == tmp___0) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result) && 1bv32 == \result [2021-10-24 09:47:44,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 09:47:44,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 09:47:44,795 INFO L168 Benchmark]: Toolchain (without parser) took 62428.46 ms. Allocated memory was 67.1 MB in the beginning and 308.3 MB in the end (delta: 241.2 MB). Free memory was 46.6 MB in the beginning and 232.7 MB in the end (delta: -186.0 MB). Peak memory consumption was 54.4 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,796 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 09:47:44,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.12 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 35.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.47 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 32.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,797 INFO L168 Benchmark]: Boogie Preprocessor took 83.37 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 32.2 MB in the beginning and 71.6 MB in the end (delta: -39.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,797 INFO L168 Benchmark]: RCFGBuilder took 2647.67 ms. Allocated memory is still 90.2 MB. Free memory was 71.6 MB in the beginning and 40.0 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,798 INFO L168 Benchmark]: TraceAbstraction took 58762.90 ms. Allocated memory was 90.2 MB in the beginning and 308.3 MB in the end (delta: 218.1 MB). Free memory was 70.0 MB in the beginning and 242.1 MB in the end (delta: -172.1 MB). Peak memory consumption was 203.9 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,798 INFO L168 Benchmark]: Witness Printer took 109.47 ms. Allocated memory is still 308.3 MB. Free memory was 242.1 MB in the beginning and 232.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-24 09:47:44,800 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 67.1 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.12 ms. Allocated memory is still 67.1 MB. Free memory was 46.5 MB in the beginning and 35.9 MB in the end (delta: 10.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.47 ms. Allocated memory is still 67.1 MB. Free memory was 35.9 MB in the beginning and 32.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.37 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 32.2 MB in the beginning and 71.6 MB in the end (delta: -39.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2647.67 ms. Allocated memory is still 90.2 MB. Free memory was 71.6 MB in the beginning and 40.0 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 58762.90 ms. Allocated memory was 90.2 MB in the beginning and 308.3 MB in the end (delta: 218.1 MB). Free memory was 70.0 MB in the beginning and 242.1 MB in the end (delta: -172.1 MB). Peak memory consumption was 203.9 MB. Max. memory is 16.1 GB. * Witness Printer took 109.47 ms. Allocated memory is still 308.3 MB. Free memory was 242.1 MB in the beginning and 232.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 704]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 704]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 704]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 58672.8ms, OverallIterations: 18, TraceHistogramMax: 5, EmptinessCheckTime: 51.1ms, AutomataDifference: 16065.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 15517.6ms, InitialAbstractionConstructionTime: 12.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2057 SDtfs, 5304 SDslu, 5391 SDs, 0 SdLazy, 890 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12028.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2868 GetRequests, 2704 SyntacticMatches, 0 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 1651.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1127occurred in iteration=17, InterpolantAutomatonStates: 147, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1389.0ms AutomataMinimizationTime, 18 MinimizatonAttempts, 8260 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 46 LocationsWithAnnotation, 46 PreInvPairs, 169 NumberOfFragments, 1427 HoareAnnotationTreeSize, 46 FomulaSimplifications, 108022032 FormulaSimplificationTreeSizeReduction, 4055.0ms HoareSimplificationTime, 46 FomulaSimplificationsInter, 10363020 FormulaSimplificationTreeSizeReductionInter, 11446.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 588.5ms SsaConstructionTime, 3763.5ms SatisfiabilityAnalysisTime, 8978.1ms InterpolantComputationTime, 1414 NumberOfCodeBlocks, 1414 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2778 ConstructedInterpolants, 0 QuantifiedInterpolants, 5891 SizeOfPredicates, 66 NumberOfNonLiveVariables, 6206 ConjunctsInSsa, 131 ConjunctsInUnsatCore, 50 InterpolantComputations, 31 PerfectInterpolantSequences, 1532/1966 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 651]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 786]: Loop Invariant Derived loop invariant: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 2bv32 == tmp___0) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result) && 1bv32 == \result - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 620]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp___0 == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp == 0bv32) - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 730]: Loop Invariant Derived loop invariant: ((((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 740]: Loop Invariant Derived loop invariant: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 530]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 956]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: (((methaneLevelCritical == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 539]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((splverifierCounter == 0bv32 && \result == 1bv32) && systemActive == 1bv32) && tmp == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 2bv32 == tmp___0) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) && 2bv32 == \result)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 1bv32) && tmp___0 == 0bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 937]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 498]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && \result == 1bv32) && systemActive == 1bv32) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) || (((((((splverifierCounter == 0bv32 && !(waterLevel == 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 0bv32) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && !(waterLevel == 2bv32)) && \result == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) RESULT: Ultimate proved your program to be correct! [2021-10-24 09:47:44,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd4ee697-6dbe-447b-bb69-d32577a12567/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...