./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:23:53,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:23:53,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:23:53,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:23:53,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:23:53,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:23:53,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:23:53,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:23:53,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:23:53,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:23:53,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:23:53,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:23:53,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:23:53,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:23:53,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:23:53,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:23:53,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:23:53,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:23:53,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:23:53,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:23:53,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:23:53,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:23:53,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:23:53,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:23:53,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:23:53,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:23:53,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:23:53,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:23:53,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:23:53,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:23:53,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:23:53,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:23:53,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:23:53,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:23:53,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:23:53,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:23:53,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:23:53,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:23:53,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:23:53,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:23:53,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:23:53,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:23:53,624 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:23:53,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:23:53,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:23:53,625 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:23:53,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:23:53,626 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:23:53,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:23:53,626 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:23:53,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:23:53,633 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:23:53,633 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:23:53,633 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:23:53,633 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:23:53,634 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:23:53,634 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:23:53,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:23:53,635 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:23:53,635 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:23:53,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:23:53,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:23:53,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:23:53,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:23:53,636 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:23:53,636 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:23:53,636 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:23:53,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:23:53,637 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:23:53,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:23:53,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:23:53,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:23:53,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:23:53,638 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:23:53,638 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:23:53,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:23:53,638 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:23:53,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:23:53,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:23:53,639 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:23:53,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:23:53,639 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 [2021-11-07 02:23:53,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:23:53,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:23:53,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:23:53,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:23:53,950 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:23:53,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-11-07 02:23:54,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/4c5109619/e507ff4a7643468d8b526e2ca73a4269/FLAG2b343f531 [2021-11-07 02:23:54,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:23:54,630 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-11-07 02:23:54,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/4c5109619/e507ff4a7643468d8b526e2ca73a4269/FLAG2b343f531 [2021-11-07 02:23:54,900 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/4c5109619/e507ff4a7643468d8b526e2ca73a4269 [2021-11-07 02:23:54,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:23:54,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:23:54,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:54,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:23:54,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:23:54,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:54" (1/1) ... [2021-11-07 02:23:54,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7159647c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:54, skipping insertion in model container [2021-11-07 02:23:54,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:54" (1/1) ... [2021-11-07 02:23:54,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:23:55,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:55,331 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-11-07 02:23:55,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:55,358 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 02:23:55,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@154871b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:55, skipping insertion in model container [2021-11-07 02:23:55,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:55,360 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 02:23:55,362 INFO L168 Benchmark]: Toolchain (without parser) took 456.99 ms. Allocated memory is still 117.4 MB. Free memory was 83.1 MB in the beginning and 86.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:23:55,363 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:23:55,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 445.37 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 86.9 MB in the end (delta: -4.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-07 02:23:55,365 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 445.37 ms. Allocated memory is still 117.4 MB. Free memory was 82.8 MB in the beginning and 86.9 MB in the end (delta: -4.1 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: 755]: 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:23:57,540 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:23:57,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:23:57,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:23:57,577 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:23:57,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:23:57,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:23:57,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:23:57,584 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:23:57,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:23:57,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:23:57,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:23:57,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:23:57,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:23:57,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:23:57,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:23:57,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:23:57,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:23:57,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:23:57,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:23:57,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:23:57,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:23:57,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:23:57,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:23:57,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:23:57,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:23:57,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:23:57,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:23:57,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:23:57,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:23:57,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:23:57,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:23:57,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:23:57,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:23:57,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:23:57,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:23:57,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:23:57,627 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:23:57,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:23:57,629 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:23:57,629 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:23:57,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:23:57,679 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:23:57,680 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:23:57,681 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:23:57,681 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:23:57,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:23:57,681 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:23:57,681 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:23:57,682 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:23:57,682 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:23:57,682 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:23:57,683 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:23:57,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:23:57,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:23:57,683 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:23:57,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:23:57,684 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:23:57,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:23:57,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:23:57,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:23:57,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:23:57,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:23:57,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:23:57,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:23:57,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:23:57,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:23:57,689 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:23:57,689 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:23:57,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:23:57,690 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:23:57,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:23:57,690 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f3466b08a64c7fddf78a299dda71b27bda6ead813da06152b5ee1cea2f1c203 [2021-11-07 02:23:58,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:23:58,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:23:58,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:23:58,119 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:23:58,120 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:23:58,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-11-07 02:23:58,192 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/96954c7e3/1321fb9bdfe84825bb9fcc458febbcc7/FLAG4c882eab6 [2021-11-07 02:23:58,837 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:23:58,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c [2021-11-07 02:23:58,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/96954c7e3/1321fb9bdfe84825bb9fcc458febbcc7/FLAG4c882eab6 [2021-11-07 02:23:59,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/data/96954c7e3/1321fb9bdfe84825bb9fcc458febbcc7 [2021-11-07 02:23:59,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:23:59,094 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:23:59,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:59,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:23:59,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:23:59,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:23:59,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0ff002 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59, skipping insertion in model container [2021-11-07 02:23:59,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:23:59,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:23:59,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:59,512 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-11-07 02:23:59,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:59,529 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 02:23:59,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:23:59,636 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-11-07 02:23:59,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:59,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:23:59,761 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_9d71e7fb-a50d-4253-95b7-97964d83a3a7/sv-benchmarks/c/product-lines/minepump_spec2_productSimulator.cil.c[20836,20849] [2021-11-07 02:23:59,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:23:59,785 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:23:59,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59 WrapperNode [2021-11-07 02:23:59,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:23:59,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:23:59,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:23:59,787 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:23:59,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:23:59,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:23:59,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:23:59,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:23:59,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:23:59,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:23:59,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:23:59,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:24:00,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:24:00,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:24:00,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:24:00,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (1/1) ... [2021-11-07 02:24:00,169 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:24:00,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:00,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:24:00,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:24:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:24:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:24:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:24:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:24:03,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:24:03,571 INFO L299 CfgBuilder]: Removed 902 assume(true) statements. [2021-11-07 02:24:03,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:03 BoogieIcfgContainer [2021-11-07 02:24:03,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:24:03,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:24:03,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:24:03,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:24:03,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:23:59" (1/3) ... [2021-11-07 02:24:03,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e40a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:03, skipping insertion in model container [2021-11-07 02:24:03,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:23:59" (2/3) ... [2021-11-07 02:24:03,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e40a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:24:03, skipping insertion in model container [2021-11-07 02:24:03,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:03" (3/3) ... [2021-11-07 02:24:03,583 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_productSimulator.cil.c [2021-11-07 02:24:03,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:24:03,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 02:24:03,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:24:03,645 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 02:24:03,646 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 02:24:03,676 INFO L276 IsEmpty]: Start isEmpty. Operand has 474 states, 470 states have (on average 1.5765957446808512) internal successors, (741), 473 states have internal predecessors, (741), 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 02:24:03,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 02:24:03,698 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:03,702 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] [2021-11-07 02:24:03,703 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 02:24:03,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash -434502313, now seen corresponding path program 1 times [2021-11-07 02:24:03,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:03,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1422261230] [2021-11-07 02:24:03,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:03,730 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:03,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:03,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:03,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:24:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:04,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 02:24:04,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:04,126 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 02:24:04,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:04,191 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 02:24:04,192 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:04,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1422261230] [2021-11-07 02:24:04,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1422261230] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:04,193 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:04,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 02:24:04,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333391648] [2021-11-07 02:24:04,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 02:24:04,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:04,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 02:24:04,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 02:24:04,221 INFO L87 Difference]: Start difference. First operand has 474 states, 470 states have (on average 1.5765957446808512) internal successors, (741), 473 states have internal predecessors, (741), 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 02:24:04,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:04,308 INFO L93 Difference]: Finished difference Result 934 states and 1467 transitions. [2021-11-07 02:24:04,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 02:24:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 02:24:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:04,339 INFO L225 Difference]: With dead ends: 934 [2021-11-07 02:24:04,340 INFO L226 Difference]: Without dead ends: 470 [2021-11-07 02:24:04,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 48 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 02:24:04,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-11-07 02:24:04,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2021-11-07 02:24:04,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 467 states have (on average 1.5610278372591007) internal successors, (729), 469 states have internal predecessors, (729), 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 02:24:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 729 transitions. [2021-11-07 02:24:04,414 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 729 transitions. Word has length 25 [2021-11-07 02:24:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:04,415 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 729 transitions. [2021-11-07 02:24:04,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 02:24:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 729 transitions. [2021-11-07 02:24:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-07 02:24:04,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:04,417 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] [2021-11-07 02:24:04,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:04,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:04,630 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 02:24:04,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:04,631 INFO L85 PathProgramCache]: Analyzing trace with hash 10066668, now seen corresponding path program 1 times [2021-11-07 02:24:04,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:04,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918106419] [2021-11-07 02:24:04,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:04,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:04,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:04,634 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:04,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 02:24:04,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:04,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:04,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:04,995 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 02:24:04,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:05,083 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 02:24:05,084 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:05,084 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918106419] [2021-11-07 02:24:05,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918106419] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:05,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:05,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 02:24:05,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042677744] [2021-11-07 02:24:05,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:05,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:05,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:05,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:05,101 INFO L87 Difference]: Start difference. First operand 470 states and 729 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 02:24:05,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:05,144 INFO L93 Difference]: Finished difference Result 470 states and 729 transitions. [2021-11-07 02:24:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-11-07 02:24:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:05,155 INFO L225 Difference]: With dead ends: 470 [2021-11-07 02:24:05,156 INFO L226 Difference]: Without dead ends: 174 [2021-11-07 02:24:05,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 48 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 02:24:05,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-07 02:24:05,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-11-07 02:24:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.5375722543352601) internal successors, (266), 173 states have internal predecessors, (266), 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 02:24:05,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 266 transitions. [2021-11-07 02:24:05,194 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 266 transitions. Word has length 26 [2021-11-07 02:24:05,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:05,194 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 266 transitions. [2021-11-07 02:24:05,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 02:24:05,195 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 266 transitions. [2021-11-07 02:24:05,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 02:24:05,196 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:05,196 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, 1, 1] [2021-11-07 02:24:05,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:05,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:05,397 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 02:24:05,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:05,398 INFO L85 PathProgramCache]: Analyzing trace with hash 2146837231, now seen corresponding path program 1 times [2021-11-07 02:24:05,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:05,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398427278] [2021-11-07 02:24:05,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:05,399 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:05,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:05,406 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:05,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 02:24:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:05,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:05,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:05,736 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 02:24:05,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:05,878 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 02:24:05,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:05,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398427278] [2021-11-07 02:24:05,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398427278] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:05,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:05,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:24:05,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117811367] [2021-11-07 02:24:05,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:05,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:05,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:05,882 INFO L87 Difference]: Start difference. First operand 174 states and 266 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 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 02:24:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:05,936 INFO L93 Difference]: Finished difference Result 520 states and 810 transitions. [2021-11-07 02:24:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:05,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 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 32 [2021-11-07 02:24:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:05,940 INFO L225 Difference]: With dead ends: 520 [2021-11-07 02:24:05,940 INFO L226 Difference]: Without dead ends: 360 [2021-11-07 02:24:05,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 02:24:05,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-07 02:24:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 196. [2021-11-07 02:24:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.5435897435897437) internal successors, (301), 195 states have internal predecessors, (301), 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 02:24:05,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 301 transitions. [2021-11-07 02:24:05,978 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 301 transitions. Word has length 32 [2021-11-07 02:24:05,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:05,978 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 301 transitions. [2021-11-07 02:24:05,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 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 02:24:05,980 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 301 transitions. [2021-11-07 02:24:05,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-07 02:24:05,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:05,983 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, 1, 1, 1, 1, 1] [2021-11-07 02:24:06,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:06,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:06,203 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 02:24:06,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:06,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1270376866, now seen corresponding path program 1 times [2021-11-07 02:24:06,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:06,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1620146971] [2021-11-07 02:24:06,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:06,205 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:06,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:06,209 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:06,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 02:24:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:06,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:24:06,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:06,621 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 02:24:06,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:06,756 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 02:24:06,756 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:06,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1620146971] [2021-11-07 02:24:06,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1620146971] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:06,757 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:06,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 02:24:06,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523750846] [2021-11-07 02:24:06,759 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:06,759 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:06,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:06,761 INFO L87 Difference]: Start difference. First operand 196 states and 301 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 02:24:07,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:07,097 INFO L93 Difference]: Finished difference Result 1065 states and 1693 transitions. [2021-11-07 02:24:07,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 02:24:07,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2021-11-07 02:24:07,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:07,104 INFO L225 Difference]: With dead ends: 1065 [2021-11-07 02:24:07,105 INFO L226 Difference]: Without dead ends: 883 [2021-11-07 02:24:07,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:24:07,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-07 02:24:07,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 370. [2021-11-07 02:24:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 369 states have (on average 1.5528455284552845) internal successors, (573), 369 states have internal predecessors, (573), 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 02:24:07,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 573 transitions. [2021-11-07 02:24:07,152 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 573 transitions. Word has length 35 [2021-11-07 02:24:07,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:07,153 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 573 transitions. [2021-11-07 02:24:07,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 02:24:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 573 transitions. [2021-11-07 02:24:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-07 02:24:07,162 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:07,163 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, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:07,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:07,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:07,376 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 02:24:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1380973999, now seen corresponding path program 1 times [2021-11-07 02:24:07,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:07,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583568370] [2021-11-07 02:24:07,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:07,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:07,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:07,379 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:07,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 02:24:07,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:07,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:24:07,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:07,768 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 02:24:07,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:07,861 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 02:24:07,862 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:07,862 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583568370] [2021-11-07 02:24:07,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583568370] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:07,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:07,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:24:07,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214765553] [2021-11-07 02:24:07,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:07,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:07,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:07,870 INFO L87 Difference]: Start difference. First operand 370 states and 573 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 02:24:08,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:08,311 INFO L93 Difference]: Finished difference Result 1551 states and 2453 transitions. [2021-11-07 02:24:08,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 02:24:08,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 36 [2021-11-07 02:24:08,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:08,320 INFO L225 Difference]: With dead ends: 1551 [2021-11-07 02:24:08,320 INFO L226 Difference]: Without dead ends: 1195 [2021-11-07 02:24:08,321 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 02:24:08,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2021-11-07 02:24:08,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 385. [2021-11-07 02:24:08,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5) internal successors, (576), 384 states have internal predecessors, (576), 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 02:24:08,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 576 transitions. [2021-11-07 02:24:08,369 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 576 transitions. Word has length 36 [2021-11-07 02:24:08,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:08,371 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 576 transitions. [2021-11-07 02:24:08,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 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 02:24:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 576 transitions. [2021-11-07 02:24:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:24:08,373 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:08,373 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:08,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:08,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:08,588 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 02:24:08,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:08,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1093992796, now seen corresponding path program 1 times [2021-11-07 02:24:08,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:08,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280996315] [2021-11-07 02:24:08,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:08,590 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:08,591 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:08,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 02:24:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:08,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 02:24:08,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:09,011 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 02:24:09,011 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:09,110 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 02:24:09,111 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:09,111 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280996315] [2021-11-07 02:24:09,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1280996315] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:09,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:09,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 02:24:09,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478077469] [2021-11-07 02:24:09,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 02:24:09,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:09,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 02:24:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 02:24:09,116 INFO L87 Difference]: Start difference. First operand 385 states and 576 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 02:24:09,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:09,354 INFO L93 Difference]: Finished difference Result 1012 states and 1506 transitions. [2021-11-07 02:24:09,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 02:24:09,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 44 [2021-11-07 02:24:09,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:09,359 INFO L225 Difference]: With dead ends: 1012 [2021-11-07 02:24:09,360 INFO L226 Difference]: Without dead ends: 641 [2021-11-07 02:24:09,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 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 02:24:09,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-11-07 02:24:09,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 433. [2021-11-07 02:24:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 1.4444444444444444) internal successors, (624), 432 states have internal predecessors, (624), 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 02:24:09,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 624 transitions. [2021-11-07 02:24:09,414 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 624 transitions. Word has length 44 [2021-11-07 02:24:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:09,416 INFO L470 AbstractCegarLoop]: Abstraction has 433 states and 624 transitions. [2021-11-07 02:24:09,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 02:24:09,416 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 624 transitions. [2021-11-07 02:24:09,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:24:09,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:09,417 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:09,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:09,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:09,630 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 02:24:09,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:09,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1352158234, now seen corresponding path program 1 times [2021-11-07 02:24:09,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:09,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [381594996] [2021-11-07 02:24:09,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:09,632 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:09,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:09,637 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:09,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 02:24:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:09,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 02:24:09,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:10,030 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 02:24:10,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:10,132 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 02:24:10,132 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:10,132 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [381594996] [2021-11-07 02:24:10,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [381594996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:10,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:10,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 02:24:10,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083410693] [2021-11-07 02:24:10,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 02:24:10,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:10,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 02:24:10,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 02:24:10,134 INFO L87 Difference]: Start difference. First operand 433 states and 624 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:10,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:10,359 INFO L93 Difference]: Finished difference Result 1148 states and 1642 transitions. [2021-11-07 02:24:10,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 02:24:10,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-07 02:24:10,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:10,364 INFO L225 Difference]: With dead ends: 1148 [2021-11-07 02:24:10,364 INFO L226 Difference]: Without dead ends: 729 [2021-11-07 02:24:10,366 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 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 02:24:10,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2021-11-07 02:24:10,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 465. [2021-11-07 02:24:10,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 1.4137931034482758) internal successors, (656), 464 states have internal predecessors, (656), 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 02:24:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 656 transitions. [2021-11-07 02:24:10,417 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 656 transitions. Word has length 44 [2021-11-07 02:24:10,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:10,418 INFO L470 AbstractCegarLoop]: Abstraction has 465 states and 656 transitions. [2021-11-07 02:24:10,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 02:24:10,419 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 656 transitions. [2021-11-07 02:24:10,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-07 02:24:10,421 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:10,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:10,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:10,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:10,641 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 02:24:10,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash 341040984, now seen corresponding path program 1 times [2021-11-07 02:24:10,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:10,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1210012459] [2021-11-07 02:24:10,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:10,643 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:10,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:10,646 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:10,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 02:24:10,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:10,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:10,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:11,144 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 02:24:11,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:11,303 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 02:24:11,303 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:11,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1210012459] [2021-11-07 02:24:11,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1210012459] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:11,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:11,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 02:24:11,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573341819] [2021-11-07 02:24:11,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:11,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:11,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:11,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 02:24:11,306 INFO L87 Difference]: Start difference. First operand 465 states and 656 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 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 02:24:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:11,504 INFO L93 Difference]: Finished difference Result 1347 states and 1912 transitions. [2021-11-07 02:24:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:11,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 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) Word has length 44 [2021-11-07 02:24:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:11,511 INFO L225 Difference]: With dead ends: 1347 [2021-11-07 02:24:11,511 INFO L226 Difference]: Without dead ends: 896 [2021-11-07 02:24:11,512 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 02:24:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2021-11-07 02:24:11,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 738. [2021-11-07 02:24:11,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 738 states, 737 states have (on average 1.4043419267299864) internal successors, (1035), 737 states have internal predecessors, (1035), 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 02:24:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1035 transitions. [2021-11-07 02:24:11,598 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1035 transitions. Word has length 44 [2021-11-07 02:24:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:11,599 INFO L470 AbstractCegarLoop]: Abstraction has 738 states and 1035 transitions. [2021-11-07 02:24:11,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 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 02:24:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1035 transitions. [2021-11-07 02:24:11,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 02:24:11,601 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:11,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:11,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 02:24:11,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:11,814 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 02:24:11,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:11,814 INFO L85 PathProgramCache]: Analyzing trace with hash 772865075, now seen corresponding path program 1 times [2021-11-07 02:24:11,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:11,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542880060] [2021-11-07 02:24:11,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:11,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:11,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:11,816 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:11,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 02:24:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:12,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:12,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:12,307 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 02:24:12,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:12,443 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 02:24:12,443 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:12,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542880060] [2021-11-07 02:24:12,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542880060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:12,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 02:24:12,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 02:24:12,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209306390] [2021-11-07 02:24:12,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:12,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:12,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:12,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 02:24:12,445 INFO L87 Difference]: Start difference. First operand 738 states and 1035 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 02:24:12,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:12,597 INFO L93 Difference]: Finished difference Result 1334 states and 1867 transitions. [2021-11-07 02:24:12,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:12,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 02:24:12,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:12,606 INFO L225 Difference]: With dead ends: 1334 [2021-11-07 02:24:12,606 INFO L226 Difference]: Without dead ends: 1332 [2021-11-07 02:24:12,607 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 02:24:12,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2021-11-07 02:24:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 937. [2021-11-07 02:24:12,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 936 states have (on average 1.436965811965812) internal successors, (1345), 936 states have internal predecessors, (1345), 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 02:24:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1345 transitions. [2021-11-07 02:24:12,715 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1345 transitions. Word has length 45 [2021-11-07 02:24:12,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:12,715 INFO L470 AbstractCegarLoop]: Abstraction has 937 states and 1345 transitions. [2021-11-07 02:24:12,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 02:24:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1345 transitions. [2021-11-07 02:24:12,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 02:24:12,718 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:12,718 INFO L513 BasicCegarLoop]: trace histogram [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, 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 02:24:12,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:12,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:12,931 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 02:24:12,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:12,932 INFO L85 PathProgramCache]: Analyzing trace with hash 883644073, now seen corresponding path program 1 times [2021-11-07 02:24:12,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:12,932 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156670545] [2021-11-07 02:24:12,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:12,933 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:12,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:12,934 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:12,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 02:24:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:13,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:24:13,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:13,514 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:13,514 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:13,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:13,766 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:13,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156670545] [2021-11-07 02:24:13,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156670545] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:24:13,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1850715729] [2021-11-07 02:24:13,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:13,766 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:13,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:24:13,770 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:24:13,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-07 02:24:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:14,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:14,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:14,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:14,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1850715729] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:14,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-07 02:24:14,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 7 [2021-11-07 02:24:14,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835780916] [2021-11-07 02:24:14,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 02:24:14,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 02:24:14,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:14,511 INFO L87 Difference]: Start difference. First operand 937 states and 1345 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 02:24:15,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:15,985 INFO L93 Difference]: Finished difference Result 2060 states and 2968 transitions. [2021-11-07 02:24:15,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 02:24:15,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2021-11-07 02:24:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:15,992 INFO L225 Difference]: With dead ends: 2060 [2021-11-07 02:24:15,992 INFO L226 Difference]: Without dead ends: 1137 [2021-11-07 02:24:15,994 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:15,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-11-07 02:24:16,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1137. [2021-11-07 02:24:16,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 1136 states have (on average 1.397887323943662) internal successors, (1588), 1136 states have internal predecessors, (1588), 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 02:24:16,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1588 transitions. [2021-11-07 02:24:16,136 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1588 transitions. Word has length 66 [2021-11-07 02:24:16,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:16,136 INFO L470 AbstractCegarLoop]: Abstraction has 1137 states and 1588 transitions. [2021-11-07 02:24:16,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 02:24:16,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1588 transitions. [2021-11-07 02:24:16,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 02:24:16,140 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:16,140 INFO L513 BasicCegarLoop]: trace histogram [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, 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 02:24:16,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:16,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:16,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:16,555 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:24:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:16,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1923017229, now seen corresponding path program 1 times [2021-11-07 02:24:16,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:16,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005929207] [2021-11-07 02:24:16,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:16,557 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:16,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:16,559 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:16,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 02:24:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:17,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:24:17,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:17,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:17,547 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:17,547 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 02:24:17,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1005929207] [2021-11-07 02:24:17,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1005929207] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:24:17,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2096012652] [2021-11-07 02:24:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:17,548 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:17,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 [2021-11-07 02:24:17,549 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-07 02:24:17,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-11-07 02:24:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:18,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 02:24:18,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:18,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:18,585 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-07 02:24:18,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2096012652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 02:24:18,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673687644] [2021-11-07 02:24:18,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:18,586 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 02:24:18,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:24:18,593 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 02:24:18,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 02:24:19,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 02:24:19,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 02:24:19,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 02:24:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:19,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 02:24:19,526 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 02:24:19,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673687644] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 02:24:19,527 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-07 02:24:19,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3, 3, 3] total 7 [2021-11-07 02:24:19,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923103763] [2021-11-07 02:24:19,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 02:24:19,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 02:24:19,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 02:24:19,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:19,529 INFO L87 Difference]: Start difference. First operand 1137 states and 1588 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 02:24:21,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 02:24:21,424 INFO L93 Difference]: Finished difference Result 2864 states and 3999 transitions. [2021-11-07 02:24:21,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 02:24:21,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 67 [2021-11-07 02:24:21,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 02:24:21,436 INFO L225 Difference]: With dead ends: 2864 [2021-11-07 02:24:21,436 INFO L226 Difference]: Without dead ends: 1841 [2021-11-07 02:24:21,438 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 02:24:21,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2021-11-07 02:24:21,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1837. [2021-11-07 02:24:21,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1837 states, 1836 states have (on average 1.3823529411764706) internal successors, (2538), 1836 states have internal predecessors, (2538), 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 02:24:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1837 states to 1837 states and 2538 transitions. [2021-11-07 02:24:21,650 INFO L78 Accepts]: Start accepts. Automaton has 1837 states and 2538 transitions. Word has length 67 [2021-11-07 02:24:21,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 02:24:21,650 INFO L470 AbstractCegarLoop]: Abstraction has 1837 states and 2538 transitions. [2021-11-07 02:24:21,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 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 02:24:21,650 INFO L276 IsEmpty]: Start isEmpty. Operand 1837 states and 2538 transitions. [2021-11-07 02:24:21,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-07 02:24:21,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:24:21,653 INFO L513 BasicCegarLoop]: trace histogram [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, 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 02:24:21,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:21,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-07 02:24:22,076 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-11-07 02:24:22,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/cvc4 --incremental --print-success --lang smt [2021-11-07 02:24:22,271 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:24:22,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:24:22,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1336211215, now seen corresponding path program 1 times [2021-11-07 02:24:22,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:24:22,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377078713] [2021-11-07 02:24:22,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:24:22,272 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:24:22,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:24:22,273 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:24:22,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-07 02:24:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:24:24,129 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:24:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:24:25,734 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 02:24:25,734 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:24:25,735 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:24:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:24:25,737 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:24:25,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-07 02:24:25,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:24:25,959 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 02:24:25,963 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:24:26,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:24:26 BoogieIcfgContainer [2021-11-07 02:24:26,171 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:24:26,172 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:24:26,172 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:24:26,173 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:24:26,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:24:03" (3/4) ... [2021-11-07 02:24:26,177 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 02:24:26,367 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:24:26,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:24:26,369 INFO L168 Benchmark]: Toolchain (without parser) took 27274.44 ms. Allocated memory was 58.7 MB in the beginning and 163.6 MB in the end (delta: 104.9 MB). Free memory was 37.3 MB in the beginning and 60.6 MB in the end (delta: -23.3 MB). Peak memory consumption was 79.8 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,370 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:24:26,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 690.53 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 26.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,371 INFO L168 Benchmark]: Boogie Procedure Inliner took 190.63 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 26.2 MB in the beginning and 50.2 MB in the end (delta: -24.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,371 INFO L168 Benchmark]: Boogie Preprocessor took 172.08 ms. Allocated memory is still 77.6 MB. Free memory was 50.1 MB in the beginning and 42.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,372 INFO L168 Benchmark]: RCFGBuilder took 3422.85 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.6 MB in the beginning and 52.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,372 INFO L168 Benchmark]: TraceAbstraction took 22595.61 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 52.0 MB in the beginning and 95.2 MB in the end (delta: -43.3 MB). Peak memory consumption was 68.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,373 INFO L168 Benchmark]: Witness Printer took 195.42 ms. Allocated memory is still 163.6 MB. Free memory was 95.2 MB in the beginning and 60.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:24:26,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 690.53 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 26.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 190.63 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 26.2 MB in the beginning and 50.2 MB in the end (delta: -24.0 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 172.08 ms. Allocated memory is still 77.6 MB. Free memory was 50.1 MB in the beginning and 42.9 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3422.85 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 42.6 MB in the beginning and 52.5 MB in the end (delta: -9.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22595.61 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 52.0 MB in the beginning and 95.2 MB in the end (delta: -43.3 MB). Peak memory consumption was 68.5 MB. Max. memory is 16.1 GB. * Witness Printer took 195.42 ms. Allocated memory is still 163.6 MB. Free memory was 95.2 MB in the beginning and 60.6 MB in the end (delta: 34.6 MB). Peak memory consumption was 33.6 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 - CounterExampleResult [Line: 1097]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L66] int waterLevel = 1; [L67] int methaneLevelCritical = 0; [L176] int pumpRunning = 0; [L177] int systemActive = 1; [L508] int cleanupTimeShifts = 4; [L688] int methAndRunningLastTime ; [L896] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [__GUIDSL_ROOT_PRODUCTION=0, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L587] int retValue_acc ; [L588] int tmp ; [L1133] __GUIDSL_ROOT_PRODUCTION = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=0, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1118] __SELECTED_FEATURE_base = 1 [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=0, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1119] __SELECTED_FEATURE_highWaterSensor = select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1120] __SELECTED_FEATURE_lowWaterSensor = select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1121] __SELECTED_FEATURE_methaneQuery = select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1122] __SELECTED_FEATURE_methaneAlarm = select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1123] __SELECTED_FEATURE_stopCommand = select_one() [L1104] int retValue_acc ; [L1105] int choice = __VERIFIER_nondet_int(); [L1108] retValue_acc = choice [L1109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=0, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L1124] __SELECTED_FEATURE_startCommand = select_one() [L1138] int retValue_acc ; [L1141] retValue_acc = __SELECTED_FEATURE_base [L1142] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L594] tmp = valid_product() [L596] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L693] methAndRunningLastTime = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L611] int splverifierCounter ; [L612] int tmp ; [L613] int tmp___0 ; [L614] int tmp___1 ; [L615] int tmp___2 ; [L618] splverifierCounter = 0 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L622] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L628] tmp = __VERIFIER_nondet_int() [L630] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L84] COND TRUE waterLevel < 2 [L85] waterLevel = waterLevel + 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] tmp___0 = __VERIFIER_nondet_int() [L640] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L96] COND FALSE !(\read(methaneLevelCritical)) [L99] methaneLevelCritical = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L648] tmp___2 = __VERIFIER_nondet_int() [L650] COND FALSE !(\read(tmp___2)) [L660] tmp___1 = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L184] COND FALSE !(\read(pumpRunning)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L191] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L327] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L284] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L241] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L213] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L216] COND TRUE ! pumpRunning [L447] int retValue_acc ; [L448] int tmp ; [L449] int tmp___0 ; [L146] int retValue_acc ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L149] COND FALSE !(waterLevel < 2) [L153] retValue_acc = 0 [L154] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L453] tmp = isHighWaterSensorDry() [L455] COND FALSE !(\read(tmp)) [L458] tmp___0 = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] retValue_acc = tmp___0 [L461] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L218] tmp = isHighWaterLevel() [L220] COND TRUE \read(tmp) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L369] COND FALSE !(\read(__SELECTED_FEATURE_methaneQuery)) [L344] pumpRunning = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L698] int tmp ; [L699] int tmp___0 ; [L105] int retValue_acc ; [L108] retValue_acc = methaneLevelCritical [L109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L703] tmp = isMethaneLevelCritical() [L705] COND TRUE \read(tmp) [L402] int retValue_acc ; [L405] retValue_acc = pumpRunning [L406] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L707] tmp___0 = isPumpRunning() [L709] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L710] COND FALSE !(\read(methAndRunningLastTime)) [L715] methAndRunningLastTime = 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L620] COND TRUE 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L622] COND TRUE splverifierCounter < 4 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L628] tmp = __VERIFIER_nondet_int() [L630] COND FALSE !(\read(tmp)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L638] tmp___0 = __VERIFIER_nondet_int() [L640] COND FALSE !(\read(tmp___0)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L648] tmp___2 = __VERIFIER_nondet_int() [L650] COND FALSE !(\read(tmp___2)) [L660] tmp___1 = __VERIFIER_nondet_int() [L662] COND FALSE !(\read(tmp___1)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L184] COND TRUE \read(pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L72] COND TRUE waterLevel > 0 [L73] waterLevel = waterLevel - 1 VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L191] COND TRUE \read(systemActive) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L327] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L284] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L241] COND TRUE \read(__SELECTED_FEATURE_highWaterSensor) [L213] int tmp ; VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L216] COND FALSE !(! pumpRunning) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L698] int tmp ; [L699] int tmp___0 ; [L105] int retValue_acc ; [L108] retValue_acc = methaneLevelCritical [L109] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L703] tmp = isMethaneLevelCritical() [L705] COND TRUE \read(tmp) [L402] int retValue_acc ; [L405] retValue_acc = pumpRunning [L406] return (retValue_acc); VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L707] tmp___0 = isPumpRunning() [L709] COND TRUE \read(tmp___0) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L710] COND TRUE \read(methAndRunningLastTime) VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L1097] reach_error() VAL [__GUIDSL_ROOT_PRODUCTION=1, __SELECTED_FEATURE_base=1, __SELECTED_FEATURE_highWaterSensor=2147483648, __SELECTED_FEATURE_lowWaterSensor=0, __SELECTED_FEATURE_methaneAlarm=0, __SELECTED_FEATURE_methaneQuery=0, __SELECTED_FEATURE_startCommand=10, __SELECTED_FEATURE_stopCommand=8, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - UnprovableResult [Line: 1097]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1097]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 474 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3841 SDtfs, 4499 SDslu, 5137 SDs, 0 SdLazy, 629 SolverSat, 198 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1316 GetRequests, 1275 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1837occurred in iteration=11, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 2516 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 2891 SizeOfPredicates, 18 NumberOfNonLiveVariables, 3492 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 28 InterpolantComputations, 22 PerfectInterpolantSequences, 182/206 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-07 02:24:26,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d71e7fb-a50d-4253-95b7-97964d83a3a7/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE