./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI --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 10c62355b958c28dceaa55313714ee80b90c1fad ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI --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 10c62355b958c28dceaa55313714ee80b90c1fad ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:28,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:28,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:28,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:28,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:28,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:28,687 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:28,690 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:28,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:28,698 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:28,700 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:28,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:28,702 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:28,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:28,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:28,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:28,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:28,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:28,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:28,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:28,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:28,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:28,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:28,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:28,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:28,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:28,740 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:28,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:28,742 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:28,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:28,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:28,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:28,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:28,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:28,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:28,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:28,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:28,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:28,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:28,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:28,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:28,756 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:28,798 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:28,798 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:28,799 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:28,800 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:28,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:28,800 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:28,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:28,801 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:28,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:28,802 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:28,808 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:28,809 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:28,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:28,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:28,810 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:28,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:28,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:28,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:28,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:28,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:28,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:28,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:28,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:28,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:28,813 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:28,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:28,814 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:28,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:28,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:28,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:28,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:28,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:28,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:28,818 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:28,818 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:28,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:28,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:28,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:28,819 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:28,819 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_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10c62355b958c28dceaa55313714ee80b90c1fad [2021-10-11 02:32:29,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:29,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:29,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:29,202 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:29,202 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:29,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2021-10-11 02:32:29,274 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/d188bcae3/9de6f108880f4eb58a0f1caa9e8c5986/FLAGa5e7213ea [2021-10-11 02:32:29,817 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:29,818 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2021-10-11 02:32:29,832 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/d188bcae3/9de6f108880f4eb58a0f1caa9e8c5986/FLAGa5e7213ea [2021-10-11 02:32:30,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/d188bcae3/9de6f108880f4eb58a0f1caa9e8c5986 [2021-10-11 02:32:30,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:30,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:30,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:30,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:30,164 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:30,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:30" (1/1) ... [2021-10-11 02:32:30,168 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760a2fc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:30, skipping insertion in model container [2021-10-11 02:32:30,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:30" (1/1) ... [2021-10-11 02:32:30,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:30,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:30,510 WARN L226 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_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c[5076,5089] [2021-10-11 02:32:30,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:30,633 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-11 02:32:30,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5c604647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:30, skipping insertion in model container [2021-10-11 02:32:30,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:30,634 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:32:30,637 INFO L168 Benchmark]: Toolchain (without parser) took 479.58 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 48.3 MB in the beginning and 74.1 MB in the end (delta: -25.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,638 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:30,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 48.1 MB in the beginning and 74.1 MB in the end (delta: -26.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 474.25 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 48.1 MB in the beginning and 74.1 MB in the end (delta: -26.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 558]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:32,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:32,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:32,930 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:32,931 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:32,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:32,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:32,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:32,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:32,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:32,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:32,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:32,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:32,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:32,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:32,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:32,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:32,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:32,981 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:32,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:32,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:32,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:32,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:32,999 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:33,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:33,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:33,005 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:33,007 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:33,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:33,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:33,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:33,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:33,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:33,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:33,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:33,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:33,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:33,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:33,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:33,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:33,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:33,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:32:33,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:33,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:33,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:33,063 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:33,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:33,064 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:33,064 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:33,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:33,064 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:33,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:33,067 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:33,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:33,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:33,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:33,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:33,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:33,068 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:33,069 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:32:33,069 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:32:33,069 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:33,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:33,069 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:33,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:33,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:33,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:32:33,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:33,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:33,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:33,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:33,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:33,072 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:32:33,072 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:33,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:33,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:33,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:33,073 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_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10c62355b958c28dceaa55313714ee80b90c1fad [2021-10-11 02:32:33,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:33,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:33,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:33,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:33,565 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:33,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2021-10-11 02:32:33,650 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/f67a833fc/863356a7862548d0a137c9f93fb2c538/FLAGe96a76565 [2021-10-11 02:32:34,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:34,355 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c [2021-10-11 02:32:34,372 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/f67a833fc/863356a7862548d0a137c9f93fb2c538/FLAGe96a76565 [2021-10-11 02:32:34,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/data/f67a833fc/863356a7862548d0a137c9f93fb2c538 [2021-10-11 02:32:34,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:34,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:34,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:34,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:34,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:34,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:34" (1/1) ... [2021-10-11 02:32:34,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a71c0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:34, skipping insertion in model container [2021-10-11 02:32:34,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:34" (1/1) ... [2021-10-11 02:32:34,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:34,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:34,904 WARN L226 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_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c[5076,5089] [2021-10-11 02:32:35,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:35,040 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:32:35,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:35,104 WARN L226 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_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c[5076,5089] [2021-10-11 02:32:35,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:35,195 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:35,237 WARN L226 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_32938f75-0141-468d-acae-9b111f5a18ee/sv-benchmarks/c/product-lines/minepump_spec4_product40.cil.c[5076,5089] [2021-10-11 02:32:35,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:35,331 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:35,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35 WrapperNode [2021-10-11 02:32:35,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:35,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:35,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:35,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:35,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:35,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:35,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:35,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:35,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... [2021-10-11 02:32:35,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:35,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:35,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:35,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:35,490 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:35,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:32:35,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:35,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:37,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:37,946 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-11 02:32:37,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:37 BoogieIcfgContainer [2021-10-11 02:32:37,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:37,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:37,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:37,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:37,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:34" (1/3) ... [2021-10-11 02:32:37,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4f5a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:37, skipping insertion in model container [2021-10-11 02:32:37,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:35" (2/3) ... [2021-10-11 02:32:37,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4f5a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:37, skipping insertion in model container [2021-10-11 02:32:37,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:37" (3/3) ... [2021-10-11 02:32:37,961 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product40.cil.c [2021-10-11 02:32:37,975 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:37,979 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:32:37,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:32:38,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:38,031 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:38,031 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:38,031 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:38,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:38,031 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:38,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:38,032 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:38,047 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2021-10-11 02:32:38,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:32:38,053 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:38,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:38,054 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:38,060 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2021-10-11 02:32:38,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:38,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317490221] [2021-10-11 02:32:38,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:38,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:32:38,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:38,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:38,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:38,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317490221] [2021-10-11 02:32:38,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:38,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:38,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094241576] [2021-10-11 02:32:38,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:38,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:38,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:38,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:38,458 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2021-10-11 02:32:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:38,516 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2021-10-11 02:32:38,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:38,517 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:32:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:38,529 INFO L225 Difference]: With dead ends: 220 [2021-10-11 02:32:38,529 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:32:38,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:38,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:32:38,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:32:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:32:38,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2021-10-11 02:32:38,595 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2021-10-11 02:32:38,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:38,595 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2021-10-11 02:32:38,595 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:38,596 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2021-10-11 02:32:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:38,599 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:38,599 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:38,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:38,815 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:38,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:38,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2021-10-11 02:32:38,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:38,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916984354] [2021-10-11 02:32:38,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:39,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:39,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:39,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:39,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916984354] [2021-10-11 02:32:39,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:39,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:39,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661096411] [2021-10-11 02:32:39,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:39,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:39,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:39,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:39,115 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 3 states. [2021-10-11 02:32:39,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:39,126 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2021-10-11 02:32:39,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:39,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:32:39,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:39,128 INFO L225 Difference]: With dead ends: 109 [2021-10-11 02:32:39,128 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:32:39,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:39,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:32:39,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:32:39,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:32:39,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-11 02:32:39,134 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-11 02:32:39,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:39,135 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-11 02:32:39,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:39,135 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-11 02:32:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:32:39,136 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:39,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:39,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:32:39,356 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:39,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:39,357 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2021-10-11 02:32:39,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:39,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854260859] [2021-10-11 02:32:39,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:39,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:39,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:39,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:39,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854260859] [2021-10-11 02:32:39,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:39,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:39,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727437161] [2021-10-11 02:32:39,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:39,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:39,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:39,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:39,647 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2021-10-11 02:32:39,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:39,695 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2021-10-11 02:32:39,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:39,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:32:39,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:39,697 INFO L225 Difference]: With dead ends: 129 [2021-10-11 02:32:39,697 INFO L226 Difference]: Without dead ends: 88 [2021-10-11 02:32:39,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:39,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-11 02:32:39,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-10-11 02:32:39,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 02:32:39,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2021-10-11 02:32:39,709 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 22 [2021-10-11 02:32:39,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:39,709 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2021-10-11 02:32:39,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:39,710 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2021-10-11 02:32:39,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:32:39,711 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:39,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:39,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:32:39,924 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:39,924 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2021-10-11 02:32:39,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:39,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014167598] [2021-10-11 02:32:39,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:40,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:40,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:40,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:40,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:40,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:40,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014167598] [2021-10-11 02:32:40,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:40,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:40,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988647959] [2021-10-11 02:32:40,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:40,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:40,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:40,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:40,240 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand 3 states. [2021-10-11 02:32:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:40,329 INFO L93 Difference]: Finished difference Result 203 states and 306 transitions. [2021-10-11 02:32:40,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:40,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:32:40,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:40,335 INFO L225 Difference]: With dead ends: 203 [2021-10-11 02:32:40,335 INFO L226 Difference]: Without dead ends: 125 [2021-10-11 02:32:40,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:40,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-11 02:32:40,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-11 02:32:40,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-10-11 02:32:40,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2021-10-11 02:32:40,368 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 24 [2021-10-11 02:32:40,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:40,371 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2021-10-11 02:32:40,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:40,371 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2021-10-11 02:32:40,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:40,375 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:40,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:40,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:32:40,588 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:40,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:40,589 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2021-10-11 02:32:40,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:40,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088706540] [2021-10-11 02:32:40,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:40,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:40,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:40,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:40,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:40,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2088706540] [2021-10-11 02:32:40,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:40,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:40,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512854403] [2021-10-11 02:32:40,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:40,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:40,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:40,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:40,908 INFO L87 Difference]: Start difference. First operand 123 states and 179 transitions. Second operand 5 states. [2021-10-11 02:32:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:41,066 INFO L93 Difference]: Finished difference Result 439 states and 645 transitions. [2021-10-11 02:32:41,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:41,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:32:41,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:41,070 INFO L225 Difference]: With dead ends: 439 [2021-10-11 02:32:41,070 INFO L226 Difference]: Without dead ends: 322 [2021-10-11 02:32:41,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-10-11 02:32:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 206. [2021-10-11 02:32:41,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2021-10-11 02:32:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 290 transitions. [2021-10-11 02:32:41,113 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 290 transitions. Word has length 25 [2021-10-11 02:32:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:41,113 INFO L481 AbstractCegarLoop]: Abstraction has 206 states and 290 transitions. [2021-10-11 02:32:41,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:41,114 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 290 transitions. [2021-10-11 02:32:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:32:41,115 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:41,115 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:41,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:32:41,320 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:41,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:41,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1889894491, now seen corresponding path program 1 times [2021-10-11 02:32:41,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:41,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [216231148] [2021-10-11 02:32:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:41,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:32:41,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:41,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:41,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:41,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [216231148] [2021-10-11 02:32:41,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:41,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:41,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632513807] [2021-10-11 02:32:41,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:41,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:41,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:41,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:41,583 INFO L87 Difference]: Start difference. First operand 206 states and 290 transitions. Second operand 6 states. [2021-10-11 02:32:43,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:43,324 INFO L93 Difference]: Finished difference Result 620 states and 903 transitions. [2021-10-11 02:32:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:32:43,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2021-10-11 02:32:43,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:43,328 INFO L225 Difference]: With dead ends: 620 [2021-10-11 02:32:43,328 INFO L226 Difference]: Without dead ends: 503 [2021-10-11 02:32:43,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:43,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2021-10-11 02:32:43,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 398. [2021-10-11 02:32:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2021-10-11 02:32:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 557 transitions. [2021-10-11 02:32:43,367 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 557 transitions. Word has length 26 [2021-10-11 02:32:43,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:43,367 INFO L481 AbstractCegarLoop]: Abstraction has 398 states and 557 transitions. [2021-10-11 02:32:43,367 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 557 transitions. [2021-10-11 02:32:43,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:32:43,370 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:43,370 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:43,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:32:43,586 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:43,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:43,586 INFO L82 PathProgramCache]: Analyzing trace with hash -2088018630, now seen corresponding path program 1 times [2021-10-11 02:32:43,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:43,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102724500] [2021-10-11 02:32:43,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:43,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:32:43,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:32:43,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:43,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102724500] [2021-10-11 02:32:43,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:43,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:43,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612383218] [2021-10-11 02:32:43,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:43,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:43,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:43,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:43,880 INFO L87 Difference]: Start difference. First operand 398 states and 557 transitions. Second operand 5 states. [2021-10-11 02:32:44,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:44,035 INFO L93 Difference]: Finished difference Result 1127 states and 1562 transitions. [2021-10-11 02:32:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:44,036 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2021-10-11 02:32:44,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:44,045 INFO L225 Difference]: With dead ends: 1127 [2021-10-11 02:32:44,045 INFO L226 Difference]: Without dead ends: 735 [2021-10-11 02:32:44,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-10-11 02:32:44,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 434. [2021-10-11 02:32:44,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2021-10-11 02:32:44,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 593 transitions. [2021-10-11 02:32:44,104 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 593 transitions. Word has length 48 [2021-10-11 02:32:44,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:44,106 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 593 transitions. [2021-10-11 02:32:44,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 593 transitions. [2021-10-11 02:32:44,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-10-11 02:32:44,109 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:44,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:44,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:32:44,326 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:44,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:44,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1697475576, now seen corresponding path program 1 times [2021-10-11 02:32:44,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:44,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436853123] [2021-10-11 02:32:44,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:44,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:32:44,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:44,589 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-11 02:32:44,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:44,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436853123] [2021-10-11 02:32:44,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:44,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:44,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714140074] [2021-10-11 02:32:44,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:44,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:44,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:44,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:44,591 INFO L87 Difference]: Start difference. First operand 434 states and 593 transitions. Second operand 4 states. [2021-10-11 02:32:44,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:44,707 INFO L93 Difference]: Finished difference Result 984 states and 1339 transitions. [2021-10-11 02:32:44,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:44,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 48 [2021-10-11 02:32:44,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:44,711 INFO L225 Difference]: With dead ends: 984 [2021-10-11 02:32:44,711 INFO L226 Difference]: Without dead ends: 556 [2021-10-11 02:32:44,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:44,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-10-11 02:32:44,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 395. [2021-10-11 02:32:44,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2021-10-11 02:32:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 529 transitions. [2021-10-11 02:32:44,757 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 529 transitions. Word has length 48 [2021-10-11 02:32:44,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:44,757 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 529 transitions. [2021-10-11 02:32:44,757 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:44,757 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 529 transitions. [2021-10-11 02:32:44,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:32:44,758 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:44,759 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:44,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:32:44,973 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:44,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1542772812, now seen corresponding path program 1 times [2021-10-11 02:32:44,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:44,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704029762] [2021-10-11 02:32:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:45,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:45,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:45,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:45,295 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-11 02:32:45,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:45,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704029762] [2021-10-11 02:32:45,295 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:45,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:45,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361434214] [2021-10-11 02:32:45,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:45,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:45,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:45,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:45,297 INFO L87 Difference]: Start difference. First operand 395 states and 529 transitions. Second operand 6 states. [2021-10-11 02:32:45,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:45,680 INFO L93 Difference]: Finished difference Result 2371 states and 3279 transitions. [2021-10-11 02:32:45,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:32:45,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2021-10-11 02:32:45,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:45,692 INFO L225 Difference]: With dead ends: 2371 [2021-10-11 02:32:45,693 INFO L226 Difference]: Without dead ends: 1982 [2021-10-11 02:32:45,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-10-11 02:32:45,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2021-10-11 02:32:45,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 782. [2021-10-11 02:32:45,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2021-10-11 02:32:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 1033 transitions. [2021-10-11 02:32:45,810 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 1033 transitions. Word has length 49 [2021-10-11 02:32:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:45,812 INFO L481 AbstractCegarLoop]: Abstraction has 782 states and 1033 transitions. [2021-10-11 02:32:45,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:45,812 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 1033 transitions. [2021-10-11 02:32:45,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:32:45,814 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:45,814 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:46,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:32:46,037 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:46,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:46,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1969122052, now seen corresponding path program 1 times [2021-10-11 02:32:46,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:46,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750336247] [2021-10-11 02:32:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:46,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:32:46,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:46,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:46,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750336247] [2021-10-11 02:32:46,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:46,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:46,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013376943] [2021-10-11 02:32:46,278 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:46,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:46,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:46,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:46,279 INFO L87 Difference]: Start difference. First operand 782 states and 1033 transitions. Second operand 3 states. [2021-10-11 02:32:46,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:46,419 INFO L93 Difference]: Finished difference Result 1710 states and 2265 transitions. [2021-10-11 02:32:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:46,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2021-10-11 02:32:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:46,425 INFO L225 Difference]: With dead ends: 1710 [2021-10-11 02:32:46,426 INFO L226 Difference]: Without dead ends: 934 [2021-10-11 02:32:46,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2021-10-11 02:32:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 540. [2021-10-11 02:32:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2021-10-11 02:32:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 716 transitions. [2021-10-11 02:32:46,523 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 716 transitions. Word has length 49 [2021-10-11 02:32:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:46,523 INFO L481 AbstractCegarLoop]: Abstraction has 540 states and 716 transitions. [2021-10-11 02:32:46,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 716 transitions. [2021-10-11 02:32:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-10-11 02:32:46,525 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:46,525 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:46,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:32:46,742 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:46,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:46,742 INFO L82 PathProgramCache]: Analyzing trace with hash -103400707, now seen corresponding path program 1 times [2021-10-11 02:32:46,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:46,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060140868] [2021-10-11 02:32:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:46,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:46,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:46,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:47,042 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060140868] [2021-10-11 02:32:47,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [988359007] [2021-10-11 02:32:47,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:32:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:47,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:47,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,461 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292556598] [2021-10-11 02:32:47,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:32:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:47,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 02:32:47,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:47,732 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:32:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-11 02:32:47,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-11 02:32:47,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-11 02:32:47,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402146641] [2021-10-11 02:32:47,787 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:32:47,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:47,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:32:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:32:47,788 INFO L87 Difference]: Start difference. First operand 540 states and 716 transitions. Second operand 10 states. [2021-10-11 02:32:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:50,361 INFO L93 Difference]: Finished difference Result 2445 states and 3273 transitions. [2021-10-11 02:32:50,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-11 02:32:50,361 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 50 [2021-10-11 02:32:50,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:50,373 INFO L225 Difference]: With dead ends: 2445 [2021-10-11 02:32:50,373 INFO L226 Difference]: Without dead ends: 1991 [2021-10-11 02:32:50,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2021-10-11 02:32:50,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2021-10-11 02:32:50,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 674. [2021-10-11 02:32:50,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2021-10-11 02:32:50,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 904 transitions. [2021-10-11 02:32:50,491 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 904 transitions. Word has length 50 [2021-10-11 02:32:50,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:50,493 INFO L481 AbstractCegarLoop]: Abstraction has 674 states and 904 transitions. [2021-10-11 02:32:50,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:32:50,493 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 904 transitions. [2021-10-11 02:32:50,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-11 02:32:50,494 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:50,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-11 02:32:51,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2021-10-11 02:32:51,113 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:51,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:51,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1377844072, now seen corresponding path program 2 times [2021-10-11 02:32:51,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:51,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627105189] [2021-10-11 02:32:51,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2021-10-11 02:32:52,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:52,293 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:53,437 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:53,706 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:32:53,707 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:53,925 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2021-10-11 02:32:54,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:54 BoogieIcfgContainer [2021-10-11 02:32:54,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:54,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:54,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:54,109 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:54,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:37" (3/4) ... [2021-10-11 02:32:54,111 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:54,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32938f75-0141-468d-acae-9b111f5a18ee/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:54,272 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:54,274 INFO L168 Benchmark]: Toolchain (without parser) took 19657.26 ms. Allocated memory was 58.7 MB in the beginning and 163.6 MB in the end (delta: 104.9 MB). Free memory was 35.8 MB in the beginning and 75.3 MB in the end (delta: -39.5 MB). Peak memory consumption was 64.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,275 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:54,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.93 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 38.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,276 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.23 ms. Allocated memory is still 71.3 MB. Free memory was 38.2 MB in the beginning and 52.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,277 INFO L168 Benchmark]: Boogie Preprocessor took 81.70 ms. Allocated memory is still 71.3 MB. Free memory was 52.9 MB in the beginning and 50.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,277 INFO L168 Benchmark]: RCFGBuilder took 2462.48 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 64.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,277 INFO L168 Benchmark]: TraceAbstraction took 16153.24 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 64.4 MB in the beginning and 101.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,278 INFO L168 Benchmark]: Witness Printer took 164.10 ms. Allocated memory is still 163.6 MB. Free memory was 101.6 MB in the beginning and 75.3 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:54,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 58.7 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 714.93 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 38.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.23 ms. Allocated memory is still 71.3 MB. Free memory was 38.2 MB in the beginning and 52.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.70 ms. Allocated memory is still 71.3 MB. Free memory was 52.9 MB in the beginning and 50.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2462.48 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 50.1 MB in the beginning and 64.8 MB in the end (delta: -14.7 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16153.24 ms. Allocated memory was 94.4 MB in the beginning and 163.6 MB in the end (delta: 69.2 MB). Free memory was 64.4 MB in the beginning and 101.6 MB in the end (delta: -37.2 MB). Peak memory consumption was 88.6 MB. Max. memory is 16.1 GB. * Witness Printer took 164.10 ms. Allocated memory is still 163.6 MB. Free memory was 101.6 MB in the beginning and 75.3 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 331]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L125] int pumpRunning = 0; [L126] int systemActive = 1; [L336] int cleanupTimeShifts = 4; [L436] int waterLevel = 1; [L437] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int retValue_acc ; [L413] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L948] int retValue_acc ; [L951] retValue_acc = 1 [L952] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L419] tmp = valid_product() [L421] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L49] int splverifierCounter ; [L50] int tmp ; [L51] int tmp___0 ; [L52] int tmp___1 ; [L53] int tmp___2 ; [L56] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L454] COND TRUE waterLevel < 2 [L455] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L322] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L140] COND TRUE \read(systemActive) [L188] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] COND FALSE !(\read(pumpRunning)) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND TRUE ! pumpRunning [L285] int retValue_acc ; [L286] int tmp ; [L287] int tmp___0 ; [L516] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] COND FALSE !(waterLevel < 2) [L523] retValue_acc = 0 [L524] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L291] tmp = isHighWaterSensorDry() [L293] COND FALSE !(\read(tmp)) [L296] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L298] retValue_acc = tmp___0 [L299] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] tmp = isHighWaterLevel() [L169] COND TRUE \read(tmp) [L216] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L897] int tmp ; [L898] int tmp___0 ; [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L902] tmp = getWaterLevel() [L904] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L322] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L442] COND TRUE waterLevel > 0 [L443] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L140] COND TRUE \read(systemActive) [L188] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L191] COND TRUE \read(pumpRunning) [L229] int retValue_acc ; [L475] int retValue_acc ; [L478] retValue_acc = methaneLevelCritical [L479] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L233] retValue_acc = isMethaneLevelCritical() [L235] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L193] tmp = isMethaneAlarm() [L195] COND FALSE !(\read(tmp)) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L897] int tmp ; [L898] int tmp___0 ; [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L902] tmp = getWaterLevel() [L904] COND FALSE !(tmp == 0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L58] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L60] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L66] tmp = __VERIFIER_nondet_int() [L68] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L76] tmp___0 = __VERIFIER_nondet_int() [L78] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L86] tmp___2 = __VERIFIER_nondet_int() [L88] COND TRUE \read(tmp___2) [L322] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L133] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L442] COND TRUE waterLevel > 0 [L443] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L140] COND TRUE \read(systemActive) [L188] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L191] COND TRUE \read(pumpRunning) [L229] int retValue_acc ; [L475] int retValue_acc ; [L478] retValue_acc = methaneLevelCritical [L479] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L233] retValue_acc = isMethaneLevelCritical() [L235] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L193] tmp = isMethaneAlarm() [L195] COND FALSE !(\read(tmp)) [L162] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L897] int tmp ; [L898] int tmp___0 ; [L507] int retValue_acc ; [L510] retValue_acc = waterLevel [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L902] tmp = getWaterLevel() [L904] COND TRUE tmp == 0 [L240] int retValue_acc ; [L243] retValue_acc = pumpRunning [L244] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] tmp___0 = isPumpRunning() [L908] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L331] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.8s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1167 SDtfs, 2305 SDslu, 2326 SDs, 0 SdLazy, 399 SolverSat, 101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 644 GetRequests, 583 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=782occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 3600 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 543 NumberOfCodeBlocks, 543 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 92958 SizeOfPredicates, 26 NumberOfNonLiveVariables, 2830 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 86/140 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! Received shutdown request...