./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8 --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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:37:36,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:37:36,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:37:37,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:37:37,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:37:37,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:37:37,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:37:37,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:37:37,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:37:37,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:37:37,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:37:37,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:37:37,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:37:37,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:37:37,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:37:37,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:37:37,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:37:37,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:37:37,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:37:37,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:37:37,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:37:37,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:37:37,055 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:37:37,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:37:37,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:37:37,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:37:37,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:37:37,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:37:37,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:37:37,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:37:37,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:37:37,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:37:37,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:37:37,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:37:37,079 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:37:37,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:37:37,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:37:37,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:37:37,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:37:37,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:37:37,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:37:37,083 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:37:37,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:37:37,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:37:37,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:37:37,128 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:37:37,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:37:37,128 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:37:37,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:37:37,129 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:37:37,135 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:37:37,135 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:37:37,136 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:37:37,137 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:37:37,137 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:37:37,137 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:37:37,137 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:37:37,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:37:37,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:37:37,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:37:37,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:37:37,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:37:37,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:37:37,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:37:37,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:37:37,140 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:37:37,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:37:37,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:37:37,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:37:37,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:37:37,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:37:37,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:37:37,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:37:37,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:37:37,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:37:37,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:37:37,143 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:37:37,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:37:37,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:37:37,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:37:37,144 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:37:37,144 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_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-11-07 01:37:37,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:37:37,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:37:37,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:37:37,497 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:37:37,498 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:37:37,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-07 01:37:37,572 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/c157898f2/a3ccb3f1568c4032904ff743f15125ba/FLAG5dabb160d [2021-11-07 01:37:38,133 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:37:38,134 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-07 01:37:38,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/c157898f2/a3ccb3f1568c4032904ff743f15125ba/FLAG5dabb160d [2021-11-07 01:37:38,403 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/c157898f2/a3ccb3f1568c4032904ff743f15125ba [2021-11-07 01:37:38,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:37:38,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:37:38,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:37:38,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:37:38,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:37:38,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:37:38" (1/1) ... [2021-11-07 01:37:38,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea24a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:38, skipping insertion in model container [2021-11-07 01:37:38,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:37:38" (1/1) ... [2021-11-07 01:37:38,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:37:38,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:37:38,775 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_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-07 01:37:38,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:37:38,787 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) [2021-11-07 01:37:38,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1c0a840e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:38, skipping insertion in model container [2021-11-07 01:37:38,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:37:38,789 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:37:38,790 INFO L168 Benchmark]: Toolchain (without parser) took 383.01 ms. Allocated memory is still 113.2 MB. Free memory was 77.8 MB in the beginning and 84.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:37:38,791 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:37:38,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.67 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 84.1 MB in the end (delta: -6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:37:38,794 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 83.9 MB. Free memory was 54.1 MB in the beginning and 54.0 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 380.67 ms. Allocated memory is still 113.2 MB. Free memory was 77.5 MB in the beginning and 84.1 MB in the end (delta: -6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 637]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8 --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 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:37:40,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:37:40,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:37:40,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:37:40,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:37:40,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:37:40,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:37:40,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:37:40,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:37:40,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:37:40,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:37:40,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:37:40,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:37:40,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:37:40,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:37:40,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:37:40,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:37:40,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:37:40,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:37:40,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:37:40,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:37:40,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:37:40,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:37:40,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:37:41,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:37:41,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:37:41,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:37:41,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:37:41,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:37:41,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:37:41,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:37:41,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:37:41,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:37:41,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:37:41,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:37:41,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:37:41,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:37:41,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:37:41,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:37:41,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:37:41,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:37:41,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:37:41,060 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:37:41,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:37:41,062 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:37:41,062 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:37:41,062 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:37:41,062 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:37:41,063 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:37:41,063 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:37:41,063 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:37:41,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:37:41,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:37:41,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:37:41,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:37:41,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:37:41,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:37:41,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:37:41,067 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:37:41,067 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:37:41,067 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:37:41,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:37:41,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:37:41,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:37:41,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:37:41,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:37:41,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:37:41,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:37:41,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:37:41,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:37:41,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:37:41,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:37:41,070 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:37:41,070 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:37:41,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:37:41,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:37:41,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:37:41,072 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_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7573d0f26b9c64760f56bc1038037f99fa78fd69add5234955c16ce4082df45a [2021-11-07 01:37:41,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:37:41,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:37:41,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:37:41,483 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:37:41,483 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:37:41,484 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-07 01:37:41,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/b67100e23/c551ae3e8de546b895df6a308c518143/FLAGc09b4320b [2021-11-07 01:37:42,177 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:37:42,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c [2021-11-07 01:37:42,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/b67100e23/c551ae3e8de546b895df6a308c518143/FLAGc09b4320b [2021-11-07 01:37:42,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/data/b67100e23/c551ae3e8de546b895df6a308c518143 [2021-11-07 01:37:42,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:37:42,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:37:42,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:37:42,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:37:42,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:37:42,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:37:42" (1/1) ... [2021-11-07 01:37:42,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dbc74e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:42, skipping insertion in model container [2021-11-07 01:37:42,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:37:42" (1/1) ... [2021-11-07 01:37:42,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:37:42,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:37:42,859 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_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-07 01:37:42,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:37:42,886 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:37:42,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:37:42,966 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_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-07 01:37:42,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:37:42,986 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:37:43,067 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_9e6732f3-e251-4089-a4ef-490dca3f545c/sv-benchmarks/c/product-lines/minepump_spec4_product57.cil.c[18691,18704] [2021-11-07 01:37:43,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:37:43,087 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:37:43,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43 WrapperNode [2021-11-07 01:37:43,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:37:43,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:37:43,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:37:43,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:37:43,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,190 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:37:43,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:37:43,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:37:43,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:37:43,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:37:43,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:37:43,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:37:43,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:37:43,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (1/1) ... [2021-11-07 01:37:43,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:37:43,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:37:43,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:37:43,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:37:43,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:37:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:37:43,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:37:43,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:37:45,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:37:45,530 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-11-07 01:37:45,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:45 BoogieIcfgContainer [2021-11-07 01:37:45,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:37:45,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:37:45,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:37:45,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:37:45,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:37:42" (1/3) ... [2021-11-07 01:37:45,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb7118f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:45, skipping insertion in model container [2021-11-07 01:37:45,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:37:43" (2/3) ... [2021-11-07 01:37:45,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb7118f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:37:45, skipping insertion in model container [2021-11-07 01:37:45,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:45" (3/3) ... [2021-11-07 01:37:45,540 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product57.cil.c [2021-11-07 01:37:45,548 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:37:45,549 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:37:45,607 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:37:45,616 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 [2021-11-07 01:37:45,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:37:45,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:45,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:37:45,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:45,652 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:37:45,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:45,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:45,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1916587088, now seen corresponding path program 1 times [2021-11-07 01:37:45,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:45,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [228509030] [2021-11-07 01:37:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:45,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:45,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:45,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:45,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:37:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:45,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:37:45,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:45,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:45,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:46,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:46,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:46,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [228509030] [2021-11-07 01:37:46,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [228509030] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:46,019 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:46,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:37:46,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952084889] [2021-11-07 01:37:46,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:37:46,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:46,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:37:46,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:37:46,040 INFO L87 Difference]: Start difference. First operand has 135 states, 131 states have (on average 1.534351145038168) internal successors, (201), 134 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-07 01:37:46,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:46,071 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2021-11-07 01:37:46,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:37:46,072 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-07 01:37:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:46,082 INFO L225 Difference]: With dead ends: 264 [2021-11-07 01:37:46,082 INFO L226 Difference]: Without dead ends: 131 [2021-11-07 01:37:46,085 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:37:46,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-07 01:37:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2021-11-07 01:37:46,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 128 states have (on average 1.4765625) internal successors, (189), 130 states have internal predecessors, (189), 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) [2021-11-07 01:37:46,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2021-11-07 01:37:46,127 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2021-11-07 01:37:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:46,128 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2021-11-07 01:37:46,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-07 01:37:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2021-11-07 01:37:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:37:46,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:46,130 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:37:46,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:46,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:46,342 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:46,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:46,343 INFO L85 PathProgramCache]: Analyzing trace with hash 869830191, now seen corresponding path program 1 times [2021-11-07 01:37:46,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:46,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824266923] [2021-11-07 01:37:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:46,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:46,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:46,349 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:46,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:37:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:46,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:37:46,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:46,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:46,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:46,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:46,658 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:46,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824266923] [2021-11-07 01:37:46,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [824266923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:46,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:46,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:37:46,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537610417] [2021-11-07 01:37:46,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:37:46,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:46,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:37:46,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:37:46,666 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-07 01:37:46,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:46,703 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2021-11-07 01:37:46,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:37:46,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 17 [2021-11-07 01:37:46,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:46,706 INFO L225 Difference]: With dead ends: 131 [2021-11-07 01:37:46,706 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 01:37:46,708 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:37:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 01:37:46,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-07 01:37:46,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 52 states have internal predecessors, (76), 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) [2021-11-07 01:37:46,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2021-11-07 01:37:46,720 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2021-11-07 01:37:46,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:46,721 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2021-11-07 01:37:46,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-07 01:37:46,722 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2021-11-07 01:37:46,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:37:46,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:46,728 INFO L513 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] [2021-11-07 01:37:46,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:46,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:46,943 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:46,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:46,944 INFO L85 PathProgramCache]: Analyzing trace with hash 105563969, now seen corresponding path program 1 times [2021-11-07 01:37:46,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:46,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [607808509] [2021-11-07 01:37:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:46,945 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:46,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:46,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:37:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:47,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:37:47,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:47,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:47,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:47,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:47,330 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:47,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [607808509] [2021-11-07 01:37:47,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [607808509] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:47,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:47,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:37:47,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474951235] [2021-11-07 01:37:47,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:37:47,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:47,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:37:47,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:37:47,333 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:37:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:47,342 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2021-11-07 01:37:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:37:47,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22 [2021-11-07 01:37:47,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:47,344 INFO L225 Difference]: With dead ends: 100 [2021-11-07 01:37:47,344 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 01:37:47,344 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:37:47,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 01:37:47,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-07 01:37:47,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 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) [2021-11-07 01:37:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2021-11-07 01:37:47,351 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2021-11-07 01:37:47,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:47,352 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2021-11-07 01:37:47,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:37:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2021-11-07 01:37:47,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:37:47,353 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:47,353 INFO L513 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] [2021-11-07 01:37:47,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:47,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:47,570 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:47,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:47,570 INFO L85 PathProgramCache]: Analyzing trace with hash -72226312, now seen corresponding path program 1 times [2021-11-07 01:37:47,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:47,571 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218922492] [2021-11-07 01:37:47,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:47,572 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:47,573 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:47,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:37:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:47,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:37:47,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:47,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:47,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:47,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:47,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218922492] [2021-11-07 01:37:47,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218922492] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:47,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:47,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:37:47,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758321535] [2021-11-07 01:37:47,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:37:47,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:47,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:37:47,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:37:47,901 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-07 01:37:47,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:47,950 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2021-11-07 01:37:47,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:37:47,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 [2021-11-07 01:37:47,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:47,952 INFO L225 Difference]: With dead ends: 121 [2021-11-07 01:37:47,952 INFO L226 Difference]: Without dead ends: 74 [2021-11-07 01:37:47,953 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:37:47,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-07 01:37:47,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2021-11-07 01:37:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4225352112676057) internal successors, (101), 71 states have internal predecessors, (101), 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) [2021-11-07 01:37:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2021-11-07 01:37:47,961 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2021-11-07 01:37:47,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:47,962 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2021-11-07 01:37:47,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-07 01:37:47,962 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2021-11-07 01:37:47,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:37:47,963 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:47,964 INFO L513 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] [2021-11-07 01:37:47,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:48,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:48,181 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:48,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:48,181 INFO L85 PathProgramCache]: Analyzing trace with hash 615192364, now seen corresponding path program 1 times [2021-11-07 01:37:48,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:48,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1878004756] [2021-11-07 01:37:48,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:48,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:48,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:48,183 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:48,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:37:48,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:48,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:37:48,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:48,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:48,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:48,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1878004756] [2021-11-07 01:37:48,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1878004756] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:48,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:48,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-07 01:37:48,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896342642] [2021-11-07 01:37:48,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:37:48,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:48,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:37:48,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:37:48,709 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-11-07 01:37:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:49,031 INFO L93 Difference]: Finished difference Result 536 states and 778 transitions. [2021-11-07 01:37:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 01:37:49,032 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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 30 [2021-11-07 01:37:49,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:49,037 INFO L225 Difference]: With dead ends: 536 [2021-11-07 01:37:49,037 INFO L226 Difference]: Without dead ends: 470 [2021-11-07 01:37:49,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:37:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-11-07 01:37:49,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 173. [2021-11-07 01:37:49,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.3953488372093024) internal successors, (240), 172 states have internal predecessors, (240), 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) [2021-11-07 01:37:49,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 240 transitions. [2021-11-07 01:37:49,069 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 240 transitions. Word has length 30 [2021-11-07 01:37:49,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:49,070 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 240 transitions. [2021-11-07 01:37:49,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 7 states have internal predecessors, (57), 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) [2021-11-07 01:37:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 240 transitions. [2021-11-07 01:37:49,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-07 01:37:49,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:49,073 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:37:49,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-07 01:37:49,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:49,286 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:49,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1577661661, now seen corresponding path program 1 times [2021-11-07 01:37:49,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:49,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155133044] [2021-11-07 01:37:49,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:49,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:49,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:49,289 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:49,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:37:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:49,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:37:49,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:49,725 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:49,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:49,921 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:37:49,921 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:49,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155133044] [2021-11-07 01:37:49,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155133044] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:37:49,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1779461191] [2021-11-07 01:37:49,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:49,922 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:37:49,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:37:49,926 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:37:49,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-11-07 01:37:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:50,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:37:50,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:50,408 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 01:37:50,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:50,544 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-07 01:37:50,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1779461191] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:50,544 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:37:50,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 9 [2021-11-07 01:37:50,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540871250] [2021-11-07 01:37:50,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:37:50,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:50,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:37:50,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:37:50,547 INFO L87 Difference]: Start difference. First operand 173 states and 240 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-11-07 01:37:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:50,714 INFO L93 Difference]: Finished difference Result 423 states and 597 transitions. [2021-11-07 01:37:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:37:50,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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 53 [2021-11-07 01:37:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:50,718 INFO L225 Difference]: With dead ends: 423 [2021-11-07 01:37:50,718 INFO L226 Difference]: Without dead ends: 421 [2021-11-07 01:37:50,719 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:37:50,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-07 01:37:50,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 173. [2021-11-07 01:37:50,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.3895348837209303) internal successors, (239), 172 states have internal predecessors, (239), 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) [2021-11-07 01:37:50,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 239 transitions. [2021-11-07 01:37:50,741 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 239 transitions. Word has length 53 [2021-11-07 01:37:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:50,742 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 239 transitions. [2021-11-07 01:37:50,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 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) [2021-11-07 01:37:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 239 transitions. [2021-11-07 01:37:50,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:37:50,745 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:50,745 INFO L513 BasicCegarLoop]: trace histogram [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, 1] [2021-11-07 01:37:50,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:50,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:51,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 01:37:51,157 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:51,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1150860757, now seen corresponding path program 1 times [2021-11-07 01:37:51,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:51,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103772049] [2021-11-07 01:37:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:51,158 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:51,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:51,159 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:51,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:37:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:51,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:37:51,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:51,632 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:51,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:51,754 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:51,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:51,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103772049] [2021-11-07 01:37:51,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103772049] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:51,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:51,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:37:51,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369534000] [2021-11-07 01:37:51,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:37:51,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:51,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:37:51,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:37:51,758 INFO L87 Difference]: Start difference. First operand 173 states and 239 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:51,838 INFO L93 Difference]: Finished difference Result 462 states and 633 transitions. [2021-11-07 01:37:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:37:51,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-07 01:37:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:51,842 INFO L225 Difference]: With dead ends: 462 [2021-11-07 01:37:51,844 INFO L226 Difference]: Without dead ends: 295 [2021-11-07 01:37:51,847 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:37:51,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-07 01:37:51,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 188. [2021-11-07 01:37:51,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.358288770053476) internal successors, (254), 187 states have internal predecessors, (254), 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) [2021-11-07 01:37:51,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 254 transitions. [2021-11-07 01:37:51,879 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 254 transitions. Word has length 54 [2021-11-07 01:37:51,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:51,880 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 254 transitions. [2021-11-07 01:37:51,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:37:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 254 transitions. [2021-11-07 01:37:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-07 01:37:51,892 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:51,892 INFO L513 BasicCegarLoop]: trace histogram [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, 1] [2021-11-07 01:37:51,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:52,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:52,106 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:52,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:52,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1093122541, now seen corresponding path program 1 times [2021-11-07 01:37:52,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:52,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1088075181] [2021-11-07 01:37:52,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:52,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:52,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:52,109 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:52,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:37:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:52,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:37:52,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:52,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:52,679 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:37:52,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:52,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1088075181] [2021-11-07 01:37:52,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1088075181] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:37:52,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:37:52,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:37:52,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262864119] [2021-11-07 01:37:52,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:37:52,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:52,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:37:52,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:37:52,681 INFO L87 Difference]: Start difference. First operand 188 states and 254 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-11-07 01:37:52,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:52,744 INFO L93 Difference]: Finished difference Result 426 states and 575 transitions. [2021-11-07 01:37:52,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:37:52,745 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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 54 [2021-11-07 01:37:52,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:52,747 INFO L225 Difference]: With dead ends: 426 [2021-11-07 01:37:52,747 INFO L226 Difference]: Without dead ends: 244 [2021-11-07 01:37:52,748 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:37:52,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-07 01:37:52,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 158. [2021-11-07 01:37:52,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 1.3312101910828025) internal successors, (209), 157 states have internal predecessors, (209), 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) [2021-11-07 01:37:52,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 209 transitions. [2021-11-07 01:37:52,766 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 209 transitions. Word has length 54 [2021-11-07 01:37:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:52,767 INFO L470 AbstractCegarLoop]: Abstraction has 158 states and 209 transitions. [2021-11-07 01:37:52,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 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) [2021-11-07 01:37:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 209 transitions. [2021-11-07 01:37:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-07 01:37:52,768 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:52,768 INFO L513 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] [2021-11-07 01:37:52,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:52,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:37:52,987 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:37:52,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:37:52,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1437514545, now seen corresponding path program 1 times [2021-11-07 01:37:52,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:37:52,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1574058917] [2021-11-07 01:37:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:52,989 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:37:52,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:37:52,990 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:37:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:37:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:53,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:37:53,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:53,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:53,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:37:53,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1574058917] [2021-11-07 01:37:53,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1574058917] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:37:53,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [716964755] [2021-11-07 01:37:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:53,771 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 01:37:53,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 01:37:53,772 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 01:37:53,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 01:37:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:54,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-07 01:37:54,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:54,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:54,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [716964755] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:37:54,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124424276] [2021-11-07 01:37:54,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:37:54,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:37:54,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:37:54,657 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:37:54,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 01:37:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:37:55,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:37:55,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:37:55,182 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:55,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:37:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-07 01:37:55,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124424276] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:37:55,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-07 01:37:55,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2021-11-07 01:37:55,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265032525] [2021-11-07 01:37:55,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:37:55,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:37:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:37:55,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:37:55,357 INFO L87 Difference]: Start difference. First operand 158 states and 209 transitions. Second operand has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 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) [2021-11-07 01:37:59,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:37:59,638 INFO L93 Difference]: Finished difference Result 1916 states and 2593 transitions. [2021-11-07 01:37:59,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-07 01:37:59,638 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 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 [2021-11-07 01:37:59,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:37:59,649 INFO L225 Difference]: With dead ends: 1916 [2021-11-07 01:37:59,649 INFO L226 Difference]: Without dead ends: 1788 [2021-11-07 01:37:59,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2008 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1040, Invalid=4510, Unknown=0, NotChecked=0, Total=5550 [2021-11-07 01:37:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2021-11-07 01:37:59,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 283. [2021-11-07 01:37:59,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 282 states have (on average 1.3475177304964538) internal successors, (380), 282 states have internal predecessors, (380), 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) [2021-11-07 01:37:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 380 transitions. [2021-11-07 01:37:59,701 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 380 transitions. Word has length 55 [2021-11-07 01:37:59,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:37:59,702 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 380 transitions. [2021-11-07 01:37:59,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.166666666666666) internal successors, (110), 11 states have internal predecessors, (110), 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) [2021-11-07 01:37:59,702 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 380 transitions. [2021-11-07 01:37:59,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-07 01:37:59,704 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:37:59,704 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-07 01:37:59,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:37:59,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:00,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:00,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:38:00,329 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:38:00,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:38:00,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2103312411, now seen corresponding path program 1 times [2021-11-07 01:38:00,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:38:00,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [59872559] [2021-11-07 01:38:00,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:38:00,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:38:00,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:38:00,332 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:38:00,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-07 01:38:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:38:00,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:38:00,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:38:00,941 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:38:00,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:38:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 01:38:01,119 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:38:01,119 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [59872559] [2021-11-07 01:38:01,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [59872559] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:38:01,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:38:01,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:38:01,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283582068] [2021-11-07 01:38:01,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:38:01,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:38:01,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:38:01,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:38:01,122 INFO L87 Difference]: Start difference. First operand 283 states and 380 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-11-07 01:38:01,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:38:01,180 INFO L93 Difference]: Finished difference Result 456 states and 603 transitions. [2021-11-07 01:38:01,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:38:01,180 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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 76 [2021-11-07 01:38:01,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:38:01,181 INFO L225 Difference]: With dead ends: 456 [2021-11-07 01:38:01,181 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 01:38:01,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:38:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 01:38:01,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 01:38:01,182 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) [2021-11-07 01:38:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 01:38:01,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-11-07 01:38:01,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:38:01,183 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 01:38:01,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 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) [2021-11-07 01:38:01,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 01:38:01,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 01:38:01,186 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:38:01,186 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:38:01,187 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:38:01,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-07 01:38:01,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:38:01,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 01:38:01,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:01,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,285 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:02,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L333-2(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L333-3(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L168(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L333-5(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,329 INFO L857 garLoopResultBuilder]: For program point L333-6(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L168-2(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L168-3(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L333-8(lines 333 337) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L168-4(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L168-5(lines 168 185) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L853 garLoopResultBuilder]: At program point L136(lines 135 154) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~waterLevel~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) .cse1 .cse3) (and .cse0 .cse1 .cse3 .cse2))) [2021-11-07 01:38:05,330 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 142) no Hoare annotation was computed. [2021-11-07 01:38:05,330 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 135 154) the Hoare annotation is: false [2021-11-07 01:38:05,330 INFO L853 garLoopResultBuilder]: At program point L136-3(lines 135 154) the Hoare annotation is: false [2021-11-07 01:38:05,331 INFO L853 garLoopResultBuilder]: At program point L500(lines 1 982) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L402(lines 402 406) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172-2(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172-3(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172-4(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,331 INFO L857 garLoopResultBuilder]: For program point L172-5(lines 172 180) no Hoare annotation was computed. [2021-11-07 01:38:05,332 INFO L853 garLoopResultBuilder]: At program point L470(lines 465 473) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32))) [2021-11-07 01:38:05,332 INFO L853 garLoopResultBuilder]: At program point L470-1(lines 465 473) the Hoare annotation is: false [2021-11-07 01:38:05,332 INFO L853 garLoopResultBuilder]: At program point L470-2(lines 465 473) the Hoare annotation is: false [2021-11-07 01:38:05,332 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2021-11-07 01:38:05,333 INFO L853 garLoopResultBuilder]: At program point L74-1(lines 74 80) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) .cse2) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-11-07 01:38:05,333 INFO L853 garLoopResultBuilder]: At program point L339(lines 324 342) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp~5 (_ bv0 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) [2021-11-07 01:38:05,333 INFO L853 garLoopResultBuilder]: At program point L339-1(lines 324 342) the Hoare annotation is: false [2021-11-07 01:38:05,333 INFO L853 garLoopResultBuilder]: At program point L339-2(lines 324 342) the Hoare annotation is: false [2021-11-07 01:38:05,334 INFO L860 garLoopResultBuilder]: At program point L604(lines 585 607) the Hoare annotation is: true [2021-11-07 01:38:05,334 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L572(lines 568 574) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L143(lines 143 149) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= ~waterLevel~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1) (and .cse0 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) .cse1 .cse2 .cse3) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv1 32)) .cse3))) [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L143-1(lines 143 149) the Hoare annotation is: false [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L143-2(lines 143 149) the Hoare annotation is: false [2021-11-07 01:38:05,334 INFO L853 garLoopResultBuilder]: At program point L508(lines 503 511) the Hoare annotation is: (and (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L378-3(lines 378 382) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L378-6(lines 378 382) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L314(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L314-2(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L314-3(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,335 INFO L857 garLoopResultBuilder]: For program point L314-5(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-6(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-8(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-9(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-11(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-12(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,336 INFO L857 garLoopResultBuilder]: For program point L314-14(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,337 INFO L857 garLoopResultBuilder]: For program point L314-15(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,337 INFO L857 garLoopResultBuilder]: For program point L314-17(lines 314 318) no Hoare annotation was computed. [2021-11-07 01:38:05,337 INFO L853 garLoopResultBuilder]: At program point L447(lines 442 450) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) .cse1) (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)))) [2021-11-07 01:38:05,337 INFO L853 garLoopResultBuilder]: At program point L447-1(lines 442 450) the Hoare annotation is: false [2021-11-07 01:38:05,337 INFO L853 garLoopResultBuilder]: At program point L447-2(lines 442 450) the Hoare annotation is: false [2021-11-07 01:38:05,337 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L84-1(lines 84 90) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) .cse2) (and .cse0 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))) [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L415(lines 410 418) the Hoare annotation is: false [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L415-1(lines 410 418) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= ~waterLevel~0 (_ bv2 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L415-2(lines 410 418) the Hoare annotation is: false [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L415-3(lines 410 418) the Hoare annotation is: false [2021-11-07 01:38:05,338 INFO L853 garLoopResultBuilder]: At program point L415-4(lines 410 418) the Hoare annotation is: false [2021-11-07 01:38:05,339 INFO L853 garLoopResultBuilder]: At program point L415-5(lines 410 418) the Hoare annotation is: false [2021-11-07 01:38:05,339 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 01:38:05,339 INFO L857 garLoopResultBuilder]: For program point L979(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,339 INFO L857 garLoopResultBuilder]: For program point L979-1(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,339 INFO L857 garLoopResultBuilder]: For program point L979-2(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,339 INFO L853 garLoopResultBuilder]: At program point L320(lines 305 323) the Hoare annotation is: false [2021-11-07 01:38:05,340 INFO L853 garLoopResultBuilder]: At program point L320-1(lines 305 323) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32)) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32)) (= ~waterLevel~0 (_ bv1 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp~4 (_ bv1 32)) .cse2))) [2021-11-07 01:38:05,340 INFO L853 garLoopResultBuilder]: At program point L320-2(lines 305 323) the Hoare annotation is: false [2021-11-07 01:38:05,340 INFO L853 garLoopResultBuilder]: At program point L320-3(lines 305 323) the Hoare annotation is: false [2021-11-07 01:38:05,340 INFO L853 garLoopResultBuilder]: At program point L320-4(lines 305 323) the Hoare annotation is: false [2021-11-07 01:38:05,340 INFO L853 garLoopResultBuilder]: At program point L320-5(lines 305 323) the Hoare annotation is: false [2021-11-07 01:38:05,340 INFO L857 garLoopResultBuilder]: For program point L354(lines 354 367) no Hoare annotation was computed. [2021-11-07 01:38:05,341 INFO L853 garLoopResultBuilder]: At program point L354-1(lines 1 982) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) (not (= (_ bv0 32) |ULTIMATE.start_getWaterLevel_#res|)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~6 (_ bv0 32))) .cse1) (and .cse0 .cse1 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)))) [2021-11-07 01:38:05,341 INFO L857 garLoopResultBuilder]: For program point L354-2(lines 354 367) no Hoare annotation was computed. [2021-11-07 01:38:05,341 INFO L853 garLoopResultBuilder]: At program point L354-3(lines 1 982) the Hoare annotation is: false [2021-11-07 01:38:05,341 INFO L857 garLoopResultBuilder]: For program point L354-4(lines 354 367) no Hoare annotation was computed. [2021-11-07 01:38:05,341 INFO L853 garLoopResultBuilder]: At program point L354-5(lines 1 982) the Hoare annotation is: false [2021-11-07 01:38:05,341 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256(lines 249 259) the Hoare annotation is: false [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256-1(lines 249 259) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= ~waterLevel~0 (_ bv2 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256-2(lines 249 259) the Hoare annotation is: false [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256-3(lines 249 259) the Hoare annotation is: false [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256-4(lines 249 259) the Hoare annotation is: false [2021-11-07 01:38:05,342 INFO L853 garLoopResultBuilder]: At program point L256-5(lines 249 259) the Hoare annotation is: false [2021-11-07 01:38:05,342 INFO L857 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L455-1(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L455-2(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L455-3(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L455-4(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L455-5(lines 455 461) no Hoare annotation was computed. [2021-11-07 01:38:05,343 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 394) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point L358-2(lines 358 364) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point L358-4(lines 358 364) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point L94(lines 94 105) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 01:38:05,344 INFO L853 garLoopResultBuilder]: At program point L524-2(lines 524 538) the Hoare annotation is: false [2021-11-07 01:38:05,344 INFO L857 garLoopResultBuilder]: For program point L194(lines 194 211) no Hoare annotation was computed. [2021-11-07 01:38:05,345 INFO L857 garLoopResultBuilder]: For program point L194-1(lines 194 211) no Hoare annotation was computed. [2021-11-07 01:38:05,345 INFO L857 garLoopResultBuilder]: For program point L194-2(lines 194 211) no Hoare annotation was computed. [2021-11-07 01:38:05,345 INFO L857 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2021-11-07 01:38:05,345 INFO L853 garLoopResultBuilder]: At program point L460(lines 451 464) the Hoare annotation is: false [2021-11-07 01:38:05,345 INFO L853 garLoopResultBuilder]: At program point L460-1(lines 451 464) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2) (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|) .cse1 (= ~waterLevel~0 (_ bv1 32)) .cse2))) [2021-11-07 01:38:05,345 INFO L853 garLoopResultBuilder]: At program point L460-2(lines 451 464) the Hoare annotation is: false [2021-11-07 01:38:05,346 INFO L853 garLoopResultBuilder]: At program point L460-3(lines 451 464) the Hoare annotation is: false [2021-11-07 01:38:05,346 INFO L853 garLoopResultBuilder]: At program point L460-4(lines 451 464) the Hoare annotation is: false [2021-11-07 01:38:05,346 INFO L853 garLoopResultBuilder]: At program point L460-5(lines 451 464) the Hoare annotation is: false [2021-11-07 01:38:05,346 INFO L857 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2021-11-07 01:38:05,346 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 01:38:05,346 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 979) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L528-1(lines 136 142) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L231-2(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 198 206) no Hoare annotation was computed. [2021-11-07 01:38:05,347 INFO L857 garLoopResultBuilder]: For program point L198-2(lines 198 206) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L231-4(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L231-6(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L231-8(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L231-10(lines 231 237) no Hoare annotation was computed. [2021-11-07 01:38:05,348 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 602) no Hoare annotation was computed. [2021-11-07 01:38:05,349 INFO L860 garLoopResultBuilder]: At program point L595-1(lines 595 602) the Hoare annotation is: true [2021-11-07 01:38:05,349 INFO L853 garLoopResultBuilder]: At program point L265(lines 260 268) the Hoare annotation is: false [2021-11-07 01:38:05,349 INFO L853 garLoopResultBuilder]: At program point L265-1(lines 260 268) the Hoare annotation is: false [2021-11-07 01:38:05,349 INFO L853 garLoopResultBuilder]: At program point L265-2(lines 260 268) the Hoare annotation is: false [2021-11-07 01:38:05,349 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-11-07 01:38:05,349 INFO L857 garLoopResultBuilder]: For program point L100-2(lines 136 142) no Hoare annotation was computed. [2021-11-07 01:38:05,352 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:38:05,354 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:38:05,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:38:05 BoogieIcfgContainer [2021-11-07 01:38:05,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:38:05,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:38:05,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:38:05,403 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:38:05,403 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:37:45" (3/4) ... [2021-11-07 01:38:05,406 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 01:38:05,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-11-07 01:38:05,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-11-07 01:38:05,434 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-07 01:38:05,436 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 01:38:05,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 01:38:05,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:38:05,439 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 01:38:05,465 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,466 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) && waterLevel == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,468 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,470 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,471 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 [2021-11-07 01:38:05,472 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,476 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && \result == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 [2021-11-07 01:38:05,480 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) [2021-11-07 01:38:05,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:38:05,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:38:05,545 INFO L168 Benchmark]: Toolchain (without parser) took 23119.48 ms. Allocated memory was 67.1 MB in the beginning and 117.4 MB in the end (delta: 50.3 MB). Free memory was 46.8 MB in the beginning and 32.0 MB in the end (delta: 14.8 MB). Peak memory consumption was 65.3 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,546 INFO L168 Benchmark]: CDTParser took 0.12 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. [2021-11-07 01:38:05,547 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.56 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 37.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.30 ms. Allocated memory is still 67.1 MB. Free memory was 37.5 MB in the beginning and 33.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,547 INFO L168 Benchmark]: Boogie Preprocessor took 67.37 ms. Allocated memory is still 67.1 MB. Free memory was 33.4 MB in the beginning and 30.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,548 INFO L168 Benchmark]: RCFGBuilder took 2274.05 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 30.5 MB in the beginning and 54.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,548 INFO L168 Benchmark]: TraceAbstraction took 19867.74 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.1 MB in the beginning and 43.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,549 INFO L168 Benchmark]: Witness Printer took 141.45 ms. Allocated memory is still 117.4 MB. Free memory was 43.5 MB in the beginning and 32.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:38:05,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 660.56 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 37.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 16.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.30 ms. Allocated memory is still 67.1 MB. Free memory was 37.5 MB in the beginning and 33.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.37 ms. Allocated memory is still 67.1 MB. Free memory was 33.4 MB in the beginning and 30.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2274.05 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 30.5 MB in the beginning and 54.8 MB in the end (delta: -24.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19867.74 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.1 MB in the beginning and 43.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. * Witness Printer took 141.45 ms. Allocated memory is still 117.4 MB. Free memory was 43.5 MB in the beginning and 32.0 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 979]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 979]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 979]: 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, 135 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 19.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1255 SDtfs, 3594 SDslu, 3863 SDs, 0 SdLazy, 809 SolverSat, 152 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1190 GetRequests, 1069 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2051 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=283occurred in iteration=9, InterpolantAutomatonStates: 120, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 2245 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 54 LocationsWithAnnotation, 54 PreInvPairs, 117 NumberOfFragments, 464 HoareAnnotationTreeSize, 54 FomulaSimplifications, 201839 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 54 FomulaSimplificationsInter, 44552 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 564 NumberOfCodeBlocks, 564 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2316 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2946 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 26 InterpolantComputations, 18 PerfectInterpolantSequences, 268/326 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: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) && waterLevel == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) || (((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 524]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 442]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && !(0bv32 == \result)) && !(tmp == 0bv32)) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 410]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (systemActive == 1bv32 && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && systemActive == 1bv32)) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && tmp == 0bv32) && !(0bv32 == \result)) && !(tmp == 0bv32)) && \result == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp___0 == 1bv32 - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning RESULT: Ultimate proved your program to be correct! [2021-11-07 01:38:05,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e6732f3-e251-4089-a4ef-490dca3f545c/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE