./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8 --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 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 ............................................................................................................................................ 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_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8 --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 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:23:05,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:23:05,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:23:05,803 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:23:05,804 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:23:05,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:23:05,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:23:05,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:23:05,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:23:05,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:23:05,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:23:05,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:23:05,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:23:05,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:23:05,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:23:05,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:23:05,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:23:05,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:23:05,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:23:05,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:23:05,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:23:05,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:23:05,841 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:23:05,842 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:23:05,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:23:05,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:23:05,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:23:05,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:23:05,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:23:05,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:23:05,854 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:23:05,855 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:23:05,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:23:05,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:23:05,860 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:23:05,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:23:05,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:23:05,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:23:05,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:23:05,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:23:05,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:23:05,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:23:05,928 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:23:05,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:23:05,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:23:05,935 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:23:05,935 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:23:05,936 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:23:05,936 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:23:05,936 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:23:05,937 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:23:05,937 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:23:05,942 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:23:05,942 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:23:05,943 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:23:05,943 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:23:05,943 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:23:05,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:23:05,944 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:23:05,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:23:05,945 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:23:05,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:23:05,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:23:05,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:23:05,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:23:05,947 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:23:05,947 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:23:05,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:23:05,947 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:23:05,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:23:05,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:23:05,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:23:05,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:05,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:23:05,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:23:05,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:23:05,952 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:23:05,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:23:05,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:23:05,952 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:23:05,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:23:05,953 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_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 [2021-10-13 07:23:06,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:23:06,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:23:06,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:23:06,300 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:23:06,302 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:23:06,303 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2021-10-13 07:23:06,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/64e6113f4/8f8e3ace884e41329d9bc0a54cf66627/FLAG36ceacfe5 [2021-10-13 07:23:07,004 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:23:07,005 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2021-10-13 07:23:07,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/64e6113f4/8f8e3ace884e41329d9bc0a54cf66627/FLAG36ceacfe5 [2021-10-13 07:23:07,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/64e6113f4/8f8e3ace884e41329d9bc0a54cf66627 [2021-10-13 07:23:07,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:23:07,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:23:07,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:07,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:23:07,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:23:07,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:07" (1/1) ... [2021-10-13 07:23:07,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26873e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:07, skipping insertion in model container [2021-10-13 07:23:07,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:07" (1/1) ... [2021-10-13 07:23:07,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:23:07,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:23:07,769 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[18846,18859] [2021-10-13 07:23:07,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:07,793 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) [2021-10-13 07:23:07,794 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33dd13d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:07, skipping insertion in model container [2021-10-13 07:23:07,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:07,795 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:23:07,798 INFO L168 Benchmark]: Toolchain (without parser) took 557.61 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 53.2 MB in the beginning and 103.0 MB in the end (delta: -49.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:07,798 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:23:07,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.94 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 53.0 MB in the beginning and 103.0 MB in the end (delta: -50.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:23:07,802 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 70.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 528.94 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 53.0 MB in the beginning and 103.0 MB in the end (delta: -50.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 181]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:23:10,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:23:10,461 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:23:10,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:23:10,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:23:10,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:23:10,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:23:10,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:23:10,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:23:10,549 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:23:10,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:23:10,554 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:23:10,554 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:23:10,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:23:10,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:23:10,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:23:10,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:23:10,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:23:10,573 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:23:10,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:23:10,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:23:10,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:23:10,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:23:10,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:23:10,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:23:10,605 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:23:10,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:23:10,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:23:10,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:23:10,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:23:10,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:23:10,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:23:10,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:23:10,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:23:10,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:23:10,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:23:10,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:23:10,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:23:10,621 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:23:10,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:23:10,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:23:10,631 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:23:10,684 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:23:10,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:23:10,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:23:10,687 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:23:10,687 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:23:10,687 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:23:10,688 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:23:10,688 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:23:10,688 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:23:10,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:23:10,692 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:23:10,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:23:10,693 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:23:10,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:23:10,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:23:10,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:23:10,694 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:23:10,695 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:23:10,695 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:23:10,695 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:23:10,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:23:10,696 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:23:10,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:23:10,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:23:10,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:23:10,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:23:10,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:10,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:23:10,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:23:10,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:23:10,699 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:23:10,699 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:10,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:23:10,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:23:10,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:23:10,701 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_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 886ac0ae3890ab27ff2aed3926ccccbc5335b8b2 [2021-10-13 07:23:11,172 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:23:11,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:23:11,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:23:11,208 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:23:11,209 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:23:11,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2021-10-13 07:23:11,303 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/6786bb091/28eac044a440440baa89954d7432e43f/FLAG77f89dc65 [2021-10-13 07:23:12,049 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:23:12,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c [2021-10-13 07:23:12,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/6786bb091/28eac044a440440baa89954d7432e43f/FLAG77f89dc65 [2021-10-13 07:23:12,305 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/data/6786bb091/28eac044a440440baa89954d7432e43f [2021-10-13 07:23:12,308 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:23:12,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:23:12,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:12,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:23:12,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:23:12,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:12" (1/1) ... [2021-10-13 07:23:12,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c18f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:12, skipping insertion in model container [2021-10-13 07:23:12,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:23:12" (1/1) ... [2021-10-13 07:23:12,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:23:12,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:23:12,873 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[18846,18859] [2021-10-13 07:23:12,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:12,918 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 07:23:12,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:23:13,035 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[18846,18859] [2021-10-13 07:23:13,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:13,042 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:23:13,115 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/sv-benchmarks/c/product-lines/minepump_spec2_product58.cil.c[18846,18859] [2021-10-13 07:23:13,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:23:13,148 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:23:13,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13 WrapperNode [2021-10-13 07:23:13,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:23:13,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:13,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:23:13,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:23:13,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:23:13,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:23:13,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:23:13,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:23:13,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:23:13,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:23:13,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:23:13,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:23:13,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (1/1) ... [2021-10-13 07:23:13,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:23:13,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:13,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:23:13,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:23:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:23:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:23:13,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:23:13,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:23:16,477 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:23:16,477 INFO L299 CfgBuilder]: Removed 196 assume(true) statements. [2021-10-13 07:23:16,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:16 BoogieIcfgContainer [2021-10-13 07:23:16,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:23:16,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:23:16,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:23:16,486 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:23:16,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:23:12" (1/3) ... [2021-10-13 07:23:16,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78839434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:16, skipping insertion in model container [2021-10-13 07:23:16,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:23:13" (2/3) ... [2021-10-13 07:23:16,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78839434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:23:16, skipping insertion in model container [2021-10-13 07:23:16,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:16" (3/3) ... [2021-10-13 07:23:16,490 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product58.cil.c [2021-10-13 07:23:16,496 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:23:16,497 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 07:23:16,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:23:16,560 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:23:16,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 07:23:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 135 states have (on average 1.5407407407407407) internal successors, (208), 138 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 07:23:16,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:16,589 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:16,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:16,597 INFO L82 PathProgramCache]: Analyzing trace with hash -203441980, now seen corresponding path program 1 times [2021-10-13 07:23:16,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:16,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1099175635] [2021-10-13 07:23:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:16,614 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:16,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:16,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:16,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:23:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:16,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:23:16,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:17,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:17,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:17,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:17,108 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:17,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1099175635] [2021-10-13 07:23:17,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1099175635] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:17,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:17,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:23:17,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992950055] [2021-10-13 07:23:17,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:23:17,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:17,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:23:17,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:23:17,148 INFO L87 Difference]: Start difference. First operand has 139 states, 135 states have (on average 1.5407407407407407) internal successors, (208), 138 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:17,220 INFO L93 Difference]: Finished difference Result 271 states and 408 transitions. [2021-10-13 07:23:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:23:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 07:23:17,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:17,235 INFO L225 Difference]: With dead ends: 271 [2021-10-13 07:23:17,236 INFO L226 Difference]: Without dead ends: 135 [2021-10-13 07:23:17,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:23:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-10-13 07:23:17,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-10-13 07:23:17,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 132 states have (on average 1.4848484848484849) internal successors, (196), 134 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 196 transitions. [2021-10-13 07:23:17,286 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 196 transitions. Word has length 18 [2021-10-13 07:23:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:17,287 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 196 transitions. [2021-10-13 07:23:17,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:17,287 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 196 transitions. [2021-10-13 07:23:17,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 07:23:17,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:17,289 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:17,307 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:17,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:17,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:17,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:17,504 INFO L82 PathProgramCache]: Analyzing trace with hash -422277949, now seen corresponding path program 1 times [2021-10-13 07:23:17,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:17,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428456255] [2021-10-13 07:23:17,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:17,506 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:17,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:17,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:17,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:23:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:17,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:17,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:17,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:17,846 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:17,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:17,939 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:17,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428456255] [2021-10-13 07:23:17,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428456255] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:17,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:17,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:23:17,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466039602] [2021-10-13 07:23:17,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:17,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:17,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:17,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:17,953 INFO L87 Difference]: Start difference. First operand 135 states and 196 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:17,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:18,000 INFO L93 Difference]: Finished difference Result 135 states and 196 transitions. [2021-10-13 07:23:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:18,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 07:23:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:18,002 INFO L225 Difference]: With dead ends: 135 [2021-10-13 07:23:18,003 INFO L226 Difference]: Without dead ends: 55 [2021-10-13 07:23:18,004 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:18,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-13 07:23:18,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-13 07:23:18,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:18,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-10-13 07:23:18,021 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 19 [2021-10-13 07:23:18,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:18,022 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-10-13 07:23:18,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-10-13 07:23:18,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 07:23:18,025 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:18,025 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:18,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:18,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:18,240 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:18,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:18,241 INFO L82 PathProgramCache]: Analyzing trace with hash -622955081, now seen corresponding path program 1 times [2021-10-13 07:23:18,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:18,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035648898] [2021-10-13 07:23:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:18,247 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:18,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:18,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:18,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:23:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:18,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:18,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:18,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:18,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:18,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:18,744 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:18,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035648898] [2021-10-13 07:23:18,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035648898] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:18,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:18,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:23:18,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175720526] [2021-10-13 07:23:18,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:18,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:18,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:18,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:18,752 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:18,799 INFO L93 Difference]: Finished difference Result 103 states and 151 transitions. [2021-10-13 07:23:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:18,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 07:23:18,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:18,806 INFO L225 Difference]: With dead ends: 103 [2021-10-13 07:23:18,806 INFO L226 Difference]: Without dead ends: 55 [2021-10-13 07:23:18,809 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:18,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-10-13 07:23:18,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-10-13 07:23:18,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 54 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:18,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 78 transitions. [2021-10-13 07:23:18,818 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 78 transitions. Word has length 24 [2021-10-13 07:23:18,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:18,819 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 78 transitions. [2021-10-13 07:23:18,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:18,819 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 78 transitions. [2021-10-13 07:23:18,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-13 07:23:18,827 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:18,827 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:18,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:19,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:19,054 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:19,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:19,055 INFO L82 PathProgramCache]: Analyzing trace with hash -543801984, now seen corresponding path program 1 times [2021-10-13 07:23:19,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:19,056 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118942212] [2021-10-13 07:23:19,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:19,056 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:19,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:19,058 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:19,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:23:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:19,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:19,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:19,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:19,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:19,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:19,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:19,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118942212] [2021-10-13 07:23:19,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118942212] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:19,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:19,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:23:19,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465763882] [2021-10-13 07:23:19,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:19,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:23:19,490 INFO L87 Difference]: Start difference. First operand 55 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:19,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:19,568 INFO L93 Difference]: Finished difference Result 125 states and 181 transitions. [2021-10-13 07:23:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:19,569 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-13 07:23:19,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:19,575 INFO L225 Difference]: With dead ends: 125 [2021-10-13 07:23:19,576 INFO L226 Difference]: Without dead ends: 77 [2021-10-13 07:23:19,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:23:19,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-13 07:23:19,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2021-10-13 07:23:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.4324324324324325) internal successors, (106), 74 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 106 transitions. [2021-10-13 07:23:19,603 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 106 transitions. Word has length 26 [2021-10-13 07:23:19,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:19,603 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 106 transitions. [2021-10-13 07:23:19,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:19,604 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 106 transitions. [2021-10-13 07:23:19,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:23:19,607 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:19,607 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:19,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:19,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:19,823 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:19,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:19,823 INFO L82 PathProgramCache]: Analyzing trace with hash 433721006, now seen corresponding path program 1 times [2021-10-13 07:23:19,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:19,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320581737] [2021-10-13 07:23:19,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:19,824 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:19,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:19,826 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:19,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:23:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:20,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:20,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:20,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:20,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:20,363 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:20,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320581737] [2021-10-13 07:23:20,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320581737] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:20,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:20,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:23:20,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947490206] [2021-10-13 07:23:20,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:23:20,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:20,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:23:20,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:20,366 INFO L87 Difference]: Start difference. First operand 75 states and 106 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:20,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:20,450 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2021-10-13 07:23:20,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:23:20,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 07:23:20,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:20,454 INFO L225 Difference]: With dead ends: 262 [2021-10-13 07:23:20,454 INFO L226 Difference]: Without dead ends: 194 [2021-10-13 07:23:20,455 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:23:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-10-13 07:23:20,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 188. [2021-10-13 07:23:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 187 states have (on average 1.427807486631016) internal successors, (267), 187 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:20,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 267 transitions. [2021-10-13 07:23:20,483 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 267 transitions. Word has length 32 [2021-10-13 07:23:20,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:20,484 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 267 transitions. [2021-10-13 07:23:20,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:20,485 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 267 transitions. [2021-10-13 07:23:20,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:23:20,486 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:20,487 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:20,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:20,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:20,708 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:20,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:20,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1020527020, now seen corresponding path program 1 times [2021-10-13 07:23:20,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:20,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1970758852] [2021-10-13 07:23:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:20,711 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:20,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:20,712 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:20,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:23:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:20,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:23:20,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:21,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:21,276 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:21,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1970758852] [2021-10-13 07:23:21,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1970758852] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:21,276 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:21,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 07:23:21,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854628077] [2021-10-13 07:23:21,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:23:21,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:21,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:23:21,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:23:21,279 INFO L87 Difference]: Start difference. First operand 188 states and 267 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:21,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:21,489 INFO L93 Difference]: Finished difference Result 972 states and 1381 transitions. [2021-10-13 07:23:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:23:21,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-13 07:23:21,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:21,497 INFO L225 Difference]: With dead ends: 972 [2021-10-13 07:23:21,497 INFO L226 Difference]: Without dead ends: 791 [2021-10-13 07:23:21,498 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:23:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-10-13 07:23:21,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 349. [2021-10-13 07:23:21,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 348 states have (on average 1.3908045977011494) internal successors, (484), 348 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:21,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 484 transitions. [2021-10-13 07:23:21,549 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 484 transitions. Word has length 32 [2021-10-13 07:23:21,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:21,550 INFO L470 AbstractCegarLoop]: Abstraction has 349 states and 484 transitions. [2021-10-13 07:23:21,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:21,550 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 484 transitions. [2021-10-13 07:23:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-13 07:23:21,553 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:21,553 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:21,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:21,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:21,768 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:21,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1020370484, now seen corresponding path program 1 times [2021-10-13 07:23:21,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:21,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1346193292] [2021-10-13 07:23:21,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:21,770 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:21,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:21,771 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:21,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:23:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:22,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:23:22,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:22,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:22,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:22,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:22,304 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:22,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1346193292] [2021-10-13 07:23:22,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1346193292] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:22,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:22,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 07:23:22,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964365469] [2021-10-13 07:23:22,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:23:22,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:22,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:23:22,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:23:22,307 INFO L87 Difference]: Start difference. First operand 349 states and 484 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:22,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:22,567 INFO L93 Difference]: Finished difference Result 1346 states and 1861 transitions. [2021-10-13 07:23:22,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 07:23:22,568 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-13 07:23:22,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:22,576 INFO L225 Difference]: With dead ends: 1346 [2021-10-13 07:23:22,576 INFO L226 Difference]: Without dead ends: 1004 [2021-10-13 07:23:22,577 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 53.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:23:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2021-10-13 07:23:22,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 346. [2021-10-13 07:23:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.3768115942028984) internal successors, (475), 345 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:22,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 475 transitions. [2021-10-13 07:23:22,630 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 475 transitions. Word has length 33 [2021-10-13 07:23:22,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:22,630 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 475 transitions. [2021-10-13 07:23:22,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:22,631 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 475 transitions. [2021-10-13 07:23:22,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:23:22,633 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:22,633 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:22,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:22,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:22,849 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:22,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:22,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1031669644, now seen corresponding path program 1 times [2021-10-13 07:23:22,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:22,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2047947076] [2021-10-13 07:23:22,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:22,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:22,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:22,851 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:22,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:23:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:23,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:23:23,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:23,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:23,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:23,395 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:23,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2047947076] [2021-10-13 07:23:23,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2047947076] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:23,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:23,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-13 07:23:23,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240764922] [2021-10-13 07:23:23,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:23:23,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:23,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:23:23,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:23:23,397 INFO L87 Difference]: Start difference. First operand 346 states and 475 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:23,549 INFO L93 Difference]: Finished difference Result 933 states and 1265 transitions. [2021-10-13 07:23:23,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:23:23,549 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-13 07:23:23,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:23,554 INFO L225 Difference]: With dead ends: 933 [2021-10-13 07:23:23,555 INFO L226 Difference]: Without dead ends: 594 [2021-10-13 07:23:23,556 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:23:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2021-10-13 07:23:23,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 376. [2021-10-13 07:23:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.3466666666666667) internal successors, (505), 375 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:23,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 505 transitions. [2021-10-13 07:23:23,608 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 505 transitions. Word has length 36 [2021-10-13 07:23:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:23,609 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 505 transitions. [2021-10-13 07:23:23,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:23,609 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 505 transitions. [2021-10-13 07:23:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-13 07:23:23,611 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:23,611 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:23,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:23,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:23,826 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:23,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:23,827 INFO L82 PathProgramCache]: Analyzing trace with hash 20552394, now seen corresponding path program 1 times [2021-10-13 07:23:23,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:23,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161296580] [2021-10-13 07:23:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:23,828 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:23,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:23,829 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:23,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:23:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:24,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:23:24,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:24,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:24,399 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:24,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1161296580] [2021-10-13 07:23:24,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1161296580] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:24,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:24,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:23:24,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251408549] [2021-10-13 07:23:24,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:23:24,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:24,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:23:24,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:23:24,402 INFO L87 Difference]: Start difference. First operand 376 states and 505 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:24,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:24,510 INFO L93 Difference]: Finished difference Result 793 states and 1060 transitions. [2021-10-13 07:23:24,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:23:24,511 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-13 07:23:24,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:24,514 INFO L225 Difference]: With dead ends: 793 [2021-10-13 07:23:24,515 INFO L226 Difference]: Without dead ends: 424 [2021-10-13 07:23:24,516 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:23:24,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-10-13 07:23:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 259. [2021-10-13 07:23:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.3410852713178294) internal successors, (346), 258 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:24,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 346 transitions. [2021-10-13 07:23:24,556 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 346 transitions. Word has length 36 [2021-10-13 07:23:24,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:24,558 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 346 transitions. [2021-10-13 07:23:24,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:24,559 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 346 transitions. [2021-10-13 07:23:24,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:23:24,559 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:24,560 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:24,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:24,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:24,775 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:24,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:24,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1819972552, now seen corresponding path program 1 times [2021-10-13 07:23:24,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:24,776 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726621709] [2021-10-13 07:23:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:24,776 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:24,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:24,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:24,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:23:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:25,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:23:25,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:25,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:25,418 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:25,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [726621709] [2021-10-13 07:23:25,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [726621709] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:25,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:25,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 07:23:25,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595372724] [2021-10-13 07:23:25,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:23:25,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:25,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:23:25,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:23:25,420 INFO L87 Difference]: Start difference. First operand 259 states and 346 transitions. Second operand has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:28,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:28,728 INFO L93 Difference]: Finished difference Result 995 states and 1305 transitions. [2021-10-13 07:23:28,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 07:23:28,729 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-13 07:23:28,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:28,735 INFO L225 Difference]: With dead ends: 995 [2021-10-13 07:23:28,735 INFO L226 Difference]: Without dead ends: 743 [2021-10-13 07:23:28,737 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 198.7ms TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:23:28,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2021-10-13 07:23:28,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 259. [2021-10-13 07:23:28,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.317829457364341) internal successors, (340), 258 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:28,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 340 transitions. [2021-10-13 07:23:28,785 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 340 transitions. Word has length 37 [2021-10-13 07:23:28,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:28,786 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 340 transitions. [2021-10-13 07:23:28,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.3) internal successors, (53), 10 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 340 transitions. [2021-10-13 07:23:28,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 07:23:28,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:28,788 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:28,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:29,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:29,006 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:29,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1973086569, now seen corresponding path program 1 times [2021-10-13 07:23:29,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:29,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [522951073] [2021-10-13 07:23:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:29,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:29,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:29,009 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:29,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:23:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:29,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:23:29,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:23:29,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:23:29,698 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:29,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [522951073] [2021-10-13 07:23:29,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [522951073] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:29,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:23:29,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-13 07:23:29,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74471217] [2021-10-13 07:23:29,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:23:29,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:23:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:23:29,701 INFO L87 Difference]: Start difference. First operand 259 states and 340 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:29,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:29,877 INFO L93 Difference]: Finished difference Result 800 states and 1048 transitions. [2021-10-13 07:23:29,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:23:29,877 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-13 07:23:29,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:29,883 INFO L225 Difference]: With dead ends: 800 [2021-10-13 07:23:29,884 INFO L226 Difference]: Without dead ends: 548 [2021-10-13 07:23:29,885 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.7ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:23:29,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2021-10-13 07:23:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 271. [2021-10-13 07:23:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.3037037037037038) internal successors, (352), 270 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:29,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 352 transitions. [2021-10-13 07:23:29,933 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 352 transitions. Word has length 58 [2021-10-13 07:23:29,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:29,934 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 352 transitions. [2021-10-13 07:23:29,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:29,935 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 352 transitions. [2021-10-13 07:23:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-13 07:23:29,936 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:29,937 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:29,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:30,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:30,152 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:30,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:30,153 INFO L82 PathProgramCache]: Analyzing trace with hash 2063715289, now seen corresponding path program 1 times [2021-10-13 07:23:30,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:30,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [220584731] [2021-10-13 07:23:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:30,153 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:30,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:30,154 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:30,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:23:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:30,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:23:30,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:30,853 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:23:30,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:31,137 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-13 07:23:31,138 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:31,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [220584731] [2021-10-13 07:23:31,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [220584731] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:31,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [465383490] [2021-10-13 07:23:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:31,139 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:31,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:23:31,146 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:23:31,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 07:23:31,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:31,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:31,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:31,818 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:31,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:23:32,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [465383490] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:32,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:23:32,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-13 07:23:32,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506441734] [2021-10-13 07:23:32,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:32,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:32,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:32,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:23:32,014 INFO L87 Difference]: Start difference. First operand 271 states and 352 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:32,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:32,124 INFO L93 Difference]: Finished difference Result 471 states and 610 transitions. [2021-10-13 07:23:32,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:32,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-10-13 07:23:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:32,129 INFO L225 Difference]: With dead ends: 471 [2021-10-13 07:23:32,130 INFO L226 Difference]: Without dead ends: 469 [2021-10-13 07:23:32,130 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 51.1ms TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:23:32,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2021-10-13 07:23:32,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 323. [2021-10-13 07:23:32,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.3322981366459627) internal successors, (429), 322 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 429 transitions. [2021-10-13 07:23:32,187 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 429 transitions. Word has length 58 [2021-10-13 07:23:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:32,187 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 429 transitions. [2021-10-13 07:23:32,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 429 transitions. [2021-10-13 07:23:32,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-13 07:23:32,189 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:32,189 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:32,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:32,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:32,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:32,600 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:32,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:32,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1544417178, now seen corresponding path program 1 times [2021-10-13 07:23:32,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:32,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888545160] [2021-10-13 07:23:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:32,601 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:32,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:32,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:32,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-13 07:23:33,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:33,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:23:33,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:33,425 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 07:23:33,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 07:23:33,776 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:33,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888545160] [2021-10-13 07:23:33,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888545160] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:33,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1584955176] [2021-10-13 07:23:33,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:33,777 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:33,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:23:33,781 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:23:33,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-13 07:23:34,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:34,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:23:34,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:34,811 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 07:23:34,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:35,131 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-13 07:23:35,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1584955176] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:35,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643509724] [2021-10-13 07:23:35,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:35,131 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:23:35,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:23:35,136 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:23:35,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-13 07:23:35,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:35,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:23:35,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:36,170 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:23:36,170 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:36,486 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-13 07:23:36,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643509724] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:23:36,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-13 07:23:36,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 6, 5, 8] total 15 [2021-10-13 07:23:36,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654223234] [2021-10-13 07:23:36,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 07:23:36,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:36,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 07:23:36,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-13 07:23:36,489 INFO L87 Difference]: Start difference. First operand 323 states and 429 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:40,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:40,622 INFO L93 Difference]: Finished difference Result 1801 states and 2342 transitions. [2021-10-13 07:23:40,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-13 07:23:40,623 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-10-13 07:23:40,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:40,632 INFO L225 Difference]: With dead ends: 1801 [2021-10-13 07:23:40,633 INFO L226 Difference]: Without dead ends: 1485 [2021-10-13 07:23:40,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 430.4ms TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-10-13 07:23:40,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2021-10-13 07:23:40,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 386. [2021-10-13 07:23:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.3584415584415583) internal successors, (523), 385 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 523 transitions. [2021-10-13 07:23:40,702 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 523 transitions. Word has length 82 [2021-10-13 07:23:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:40,702 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 523 transitions. [2021-10-13 07:23:40,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 523 transitions. [2021-10-13 07:23:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-13 07:23:40,704 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:23:40,705 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:23:40,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:40,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:41,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:41,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:41,330 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:23:41,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:23:41,331 INFO L82 PathProgramCache]: Analyzing trace with hash -145207002, now seen corresponding path program 1 times [2021-10-13 07:23:41,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:23:41,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5495948] [2021-10-13 07:23:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:41,331 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:23:41,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:23:41,332 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:23:41,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-13 07:23:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:41,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:23:41,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:42,192 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:23:42,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:42,528 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:23:42,528 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:23:42,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5495948] [2021-10-13 07:23:42,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5495948] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:23:42,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [936736287] [2021-10-13 07:23:42,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:23:42,529 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:23:42,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:23:42,530 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:23:42,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-13 07:23:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:23:43,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:23:43,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:23:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:23:43,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:23:43,737 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-13 07:23:43,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [936736287] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:23:43,737 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:23:43,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 6 [2021-10-13 07:23:43,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179897673] [2021-10-13 07:23:43,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:23:43,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:23:43,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:23:43,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:23:43,740 INFO L87 Difference]: Start difference. First operand 386 states and 523 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:45,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:23:45,399 INFO L93 Difference]: Finished difference Result 573 states and 763 transitions. [2021-10-13 07:23:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:23:45,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-10-13 07:23:45,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:23:45,401 INFO L225 Difference]: With dead ends: 573 [2021-10-13 07:23:45,401 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:23:45,402 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:23:45,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:23:45,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:23:45,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:45,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:23:45,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-10-13 07:23:45,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:23:45,404 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:23:45,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:23:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:23:45,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:23:45,408 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:23:45,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:23:45,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:23:45,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:45,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-13 07:23:45,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:23:45,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:23:45,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:45,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:47,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:47,892 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,894 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:48,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,895 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,899 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,916 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:49,917 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,692 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:50,720 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:51,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:23:52,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:24:10,938 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,938 INFO L857 garLoopResultBuilder]: For program point L696(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,938 INFO L857 garLoopResultBuilder]: For program point L663(lines 663 671) no Hoare annotation was computed. [2021-10-13 07:24:10,938 INFO L857 garLoopResultBuilder]: For program point L696-2(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L663-1(lines 663 671) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L663-2(lines 663 671) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L696-4(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L696-6(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L696-8(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,939 INFO L857 garLoopResultBuilder]: For program point L696-10(lines 696 702) no Hoare annotation was computed. [2021-10-13 07:24:10,940 INFO L853 garLoopResultBuilder]: At program point L730(lines 725 733) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= ~systemActive~0 (_ bv1 32)) (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 07:24:10,940 INFO L853 garLoopResultBuilder]: At program point L730-1(lines 725 733) the Hoare annotation is: false [2021-10-13 07:24:10,940 INFO L853 garLoopResultBuilder]: At program point L730-2(lines 725 733) the Hoare annotation is: false [2021-10-13 07:24:10,940 INFO L857 garLoopResultBuilder]: For program point L533(lines 532 579) no Hoare annotation was computed. [2021-10-13 07:24:10,940 INFO L857 garLoopResultBuilder]: For program point L996(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,940 INFO L857 garLoopResultBuilder]: For program point L996-1(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,941 INFO L857 garLoopResultBuilder]: For program point L996-2(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,941 INFO L857 garLoopResultBuilder]: For program point L798(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,941 INFO L857 garLoopResultBuilder]: For program point L798-2(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,941 INFO L857 garLoopResultBuilder]: For program point L798-3(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,941 INFO L857 garLoopResultBuilder]: For program point L633(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,942 INFO L857 garLoopResultBuilder]: For program point L798-5(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,942 INFO L857 garLoopResultBuilder]: For program point L633-1(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,942 INFO L857 garLoopResultBuilder]: For program point L798-6(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,942 INFO L857 garLoopResultBuilder]: For program point L633-2(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,942 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 538) no Hoare annotation was computed. [2021-10-13 07:24:10,943 INFO L857 garLoopResultBuilder]: For program point L633-3(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,943 INFO L857 garLoopResultBuilder]: For program point L798-8(lines 798 802) no Hoare annotation was computed. [2021-10-13 07:24:10,943 INFO L857 garLoopResultBuilder]: For program point L633-4(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,943 INFO L857 garLoopResultBuilder]: For program point L633-5(lines 633 650) no Hoare annotation was computed. [2021-10-13 07:24:10,943 INFO L853 garLoopResultBuilder]: At program point L138(lines 129 142) the Hoare annotation is: false [2021-10-13 07:24:10,944 INFO L853 garLoopResultBuilder]: At program point L138-1(lines 129 142) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse2 .cse4) (and .cse0 .cse6 .cse5 .cse2 .cse4) (and .cse0 .cse6 .cse2 .cse3 .cse4))) [2021-10-13 07:24:10,944 INFO L853 garLoopResultBuilder]: At program point L138-2(lines 129 142) the Hoare annotation is: false [2021-10-13 07:24:10,944 INFO L853 garLoopResultBuilder]: At program point L138-3(lines 129 142) the Hoare annotation is: false [2021-10-13 07:24:10,944 INFO L853 garLoopResultBuilder]: At program point L138-4(lines 129 142) the Hoare annotation is: false [2021-10-13 07:24:10,945 INFO L853 garLoopResultBuilder]: At program point L138-5(lines 129 142) the Hoare annotation is: false [2021-10-13 07:24:10,945 INFO L853 garLoopResultBuilder]: At program point L601(lines 600 619) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse4 (= ~methaneLevelCritical~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse4 .cse3) (and .cse0 .cse1 .cse2 .cse5) (and .cse0 .cse2 .cse5 .cse4))) [2021-10-13 07:24:10,945 INFO L857 garLoopResultBuilder]: For program point L601-1(lines 601 607) no Hoare annotation was computed. [2021-10-13 07:24:10,945 INFO L853 garLoopResultBuilder]: At program point L601-2(lines 600 619) the Hoare annotation is: false [2021-10-13 07:24:10,945 INFO L853 garLoopResultBuilder]: At program point L601-3(lines 600 619) the Hoare annotation is: false [2021-10-13 07:24:10,946 INFO L857 garLoopResultBuilder]: For program point L570(lines 570 574) no Hoare annotation was computed. [2021-10-13 07:24:10,946 INFO L853 garLoopResultBuilder]: At program point L570-2(lines 601 607) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse6 .cse2) (and .cse0 .cse4 .cse6 .cse2 .cse5))) [2021-10-13 07:24:10,946 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 852) no Hoare annotation was computed. [2021-10-13 07:24:10,946 INFO L853 garLoopResultBuilder]: At program point L835-1(lines 1 999) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse6 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~9)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse4 .cse5 .cse2 .cse6) (and .cse1 (or (and .cse0 .cse4 .cse5 .cse2 .cse6 .cse3) (and .cse0 .cse4 .cse2 (= ~waterLevel~0 (_ bv1 32)) .cse3))))) [2021-10-13 07:24:10,947 INFO L857 garLoopResultBuilder]: For program point L835-2(lines 835 852) no Hoare annotation was computed. [2021-10-13 07:24:10,947 INFO L853 garLoopResultBuilder]: At program point L835-3(lines 1 999) the Hoare annotation is: false [2021-10-13 07:24:10,947 INFO L857 garLoopResultBuilder]: For program point L835-4(lines 835 852) no Hoare annotation was computed. [2021-10-13 07:24:10,947 INFO L853 garLoopResultBuilder]: At program point L835-5(lines 1 999) the Hoare annotation is: false [2021-10-13 07:24:10,947 INFO L857 garLoopResultBuilder]: For program point L637(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,948 INFO L857 garLoopResultBuilder]: For program point L637-1(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,948 INFO L857 garLoopResultBuilder]: For program point L637-2(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,948 INFO L857 garLoopResultBuilder]: For program point L637-3(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,948 INFO L857 garLoopResultBuilder]: For program point L637-4(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,948 INFO L857 garLoopResultBuilder]: For program point L637-5(lines 637 645) no Hoare annotation was computed. [2021-10-13 07:24:10,949 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,949 INFO L853 garLoopResultBuilder]: At program point L804(lines 789 807) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse2 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse3 (or (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (not (= ~waterLevel~0 (_ bv1 32))))) (.cse4 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32))) (.cse5 (= ULTIMATE.start_isLowWaterLevel_~tmp~8 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse4 .cse5) (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5))) [2021-10-13 07:24:10,949 INFO L853 garLoopResultBuilder]: At program point L804-1(lines 789 807) the Hoare annotation is: false [2021-10-13 07:24:10,949 INFO L853 garLoopResultBuilder]: At program point L804-2(lines 789 807) the Hoare annotation is: false [2021-10-13 07:24:10,950 INFO L857 garLoopResultBuilder]: For program point L839(lines 839 849) no Hoare annotation was computed. [2021-10-13 07:24:10,950 INFO L857 garLoopResultBuilder]: For program point L839-2(lines 839 849) no Hoare annotation was computed. [2021-10-13 07:24:10,950 INFO L857 garLoopResultBuilder]: For program point L839-4(lines 839 849) no Hoare annotation was computed. [2021-10-13 07:24:10,950 INFO L853 garLoopResultBuilder]: At program point L608(lines 608 614) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse3) (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse1 .cse2))) [2021-10-13 07:24:10,950 INFO L853 garLoopResultBuilder]: At program point L608-1(lines 608 614) the Hoare annotation is: false [2021-10-13 07:24:10,951 INFO L857 garLoopResultBuilder]: For program point L542(lines 542 548) no Hoare annotation was computed. [2021-10-13 07:24:10,951 INFO L853 garLoopResultBuilder]: At program point L608-2(lines 608 614) the Hoare annotation is: false [2021-10-13 07:24:10,951 INFO L853 garLoopResultBuilder]: At program point L542-1(lines 542 548) the Hoare annotation is: (let ((.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 .cse4 .cse2 .cse3) (and .cse0 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse4 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 (= (_ bv0 32) ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~9)))) [2021-10-13 07:24:10,951 INFO L857 garLoopResultBuilder]: For program point L80(lines 80 84) no Hoare annotation was computed. [2021-10-13 07:24:10,952 INFO L857 garLoopResultBuilder]: For program point L840(lines 840 846) no Hoare annotation was computed. [2021-10-13 07:24:10,952 INFO L853 garLoopResultBuilder]: At program point L906-2(lines 906 920) the Hoare annotation is: false [2021-10-13 07:24:10,952 INFO L857 garLoopResultBuilder]: For program point L840-2(lines 840 846) no Hoare annotation was computed. [2021-10-13 07:24:10,952 INFO L857 garLoopResultBuilder]: For program point L840-4(lines 840 846) no Hoare annotation was computed. [2021-10-13 07:24:10,952 INFO L857 garLoopResultBuilder]: For program point L907(line 907) no Hoare annotation was computed. [2021-10-13 07:24:10,953 INFO L853 garLoopResultBuilder]: At program point L148(lines 143 151) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (not (= ~waterLevel~0 (_ bv0 32))))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32))))) [2021-10-13 07:24:10,953 INFO L853 garLoopResultBuilder]: At program point L148-1(lines 143 151) the Hoare annotation is: false [2021-10-13 07:24:10,953 INFO L853 garLoopResultBuilder]: At program point L148-2(lines 143 151) the Hoare annotation is: false [2021-10-13 07:24:10,953 INFO L857 garLoopResultBuilder]: For program point L910(lines 910 914) no Hoare annotation was computed. [2021-10-13 07:24:10,953 INFO L857 garLoopResultBuilder]: For program point L910-1(lines 601 607) no Hoare annotation was computed. [2021-10-13 07:24:10,954 INFO L853 garLoopResultBuilder]: At program point L580(lines 531 581) the Hoare annotation is: false [2021-10-13 07:24:10,954 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,954 INFO L857 garLoopResultBuilder]: For program point L779-2(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,954 INFO L857 garLoopResultBuilder]: For program point L779-3(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,954 INFO L857 garLoopResultBuilder]: For program point L779-5(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,954 INFO L857 garLoopResultBuilder]: For program point L779-6(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,955 INFO L857 garLoopResultBuilder]: For program point L779-8(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,955 INFO L857 garLoopResultBuilder]: For program point L779-9(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,955 INFO L857 garLoopResultBuilder]: For program point L779-11(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,955 INFO L857 garLoopResultBuilder]: For program point L779-12(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,955 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:24:10,956 INFO L857 garLoopResultBuilder]: For program point L779-14(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,956 INFO L857 garLoopResultBuilder]: For program point L779-15(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,956 INFO L857 garLoopResultBuilder]: For program point L779-17(lines 779 783) no Hoare annotation was computed. [2021-10-13 07:24:10,956 INFO L857 garLoopResultBuilder]: For program point L978(lines 978 985) no Hoare annotation was computed. [2021-10-13 07:24:10,956 INFO L860 garLoopResultBuilder]: At program point L978-1(lines 978 985) the Hoare annotation is: true [2021-10-13 07:24:10,957 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 60) no Hoare annotation was computed. [2021-10-13 07:24:10,957 INFO L857 garLoopResultBuilder]: For program point L56-3(lines 56 60) no Hoare annotation was computed. [2021-10-13 07:24:10,957 INFO L853 garLoopResultBuilder]: At program point L882(lines 1 999) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 07:24:10,957 INFO L857 garLoopResultBuilder]: For program point L56-6(lines 56 60) no Hoare annotation was computed. [2021-10-13 07:24:10,957 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 558) no Hoare annotation was computed. [2021-10-13 07:24:10,958 INFO L853 garLoopResultBuilder]: At program point L552-1(lines 552 558) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse2 .cse3 .cse5) (and .cse0 .cse1 .cse6 .cse2) (and .cse0 .cse4 .cse6 .cse2 .cse5))) [2021-10-13 07:24:10,958 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:24:10,958 INFO L853 garLoopResultBuilder]: At program point L785(lines 770 788) the Hoare annotation is: false [2021-10-13 07:24:10,958 INFO L853 garLoopResultBuilder]: At program point L785-1(lines 770 788) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~7 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse8 .cse2 .cse4 .cse6) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse9 .cse6 .cse7) (and .cse0 .cse8 .cse4 .cse9 .cse6))) [2021-10-13 07:24:10,959 INFO L853 garLoopResultBuilder]: At program point L785-2(lines 770 788) the Hoare annotation is: false [2021-10-13 07:24:10,959 INFO L853 garLoopResultBuilder]: At program point L785-3(lines 770 788) the Hoare annotation is: false [2021-10-13 07:24:10,959 INFO L853 garLoopResultBuilder]: At program point L785-4(lines 770 788) the Hoare annotation is: false [2021-10-13 07:24:10,959 INFO L853 garLoopResultBuilder]: At program point L785-5(lines 770 788) the Hoare annotation is: false [2021-10-13 07:24:10,959 INFO L853 garLoopResultBuilder]: At program point L93(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,960 INFO L853 garLoopResultBuilder]: At program point L93-1(lines 88 96) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse3))) [2021-10-13 07:24:10,960 INFO L853 garLoopResultBuilder]: At program point L93-2(lines 88 96) the Hoare annotation is: (let ((.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse4))) [2021-10-13 07:24:10,960 INFO L853 garLoopResultBuilder]: At program point L93-3(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,961 INFO L853 garLoopResultBuilder]: At program point L93-4(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,961 INFO L853 garLoopResultBuilder]: At program point L93-5(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,961 INFO L853 garLoopResultBuilder]: At program point L93-6(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,961 INFO L853 garLoopResultBuilder]: At program point L93-7(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,961 INFO L853 garLoopResultBuilder]: At program point L93-8(lines 88 96) the Hoare annotation is: false [2021-10-13 07:24:10,962 INFO L853 garLoopResultBuilder]: At program point L721(lines 714 724) the Hoare annotation is: false [2021-10-13 07:24:10,962 INFO L853 garLoopResultBuilder]: At program point L721-1(lines 714 724) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv0 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isMethaneAlarm_#res| (_ bv1 32)) .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3))) [2021-10-13 07:24:10,962 INFO L853 garLoopResultBuilder]: At program point L721-2(lines 714 724) the Hoare annotation is: false [2021-10-13 07:24:10,962 INFO L853 garLoopResultBuilder]: At program point L721-3(lines 714 724) the Hoare annotation is: false [2021-10-13 07:24:10,962 INFO L853 garLoopResultBuilder]: At program point L721-4(lines 714 724) the Hoare annotation is: false [2021-10-13 07:24:10,963 INFO L853 garLoopResultBuilder]: At program point L721-5(lines 714 724) the Hoare annotation is: false [2021-10-13 07:24:10,963 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:24:10,963 INFO L860 garLoopResultBuilder]: At program point L987(lines 968 990) the Hoare annotation is: true [2021-10-13 07:24:10,963 INFO L853 garLoopResultBuilder]: At program point L954(lines 950 956) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 07:24:10,963 INFO L853 garLoopResultBuilder]: At program point L890(lines 885 893) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 07:24:10,964 INFO L853 garLoopResultBuilder]: At program point L824(lines 819 826) the Hoare annotation is: (and (= ~methAndRunningLastTime~0 (_ bv0 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L659(lines 659 676) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L659-1(lines 659 676) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L659-2(lines 659 676) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 996) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 575) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,964 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,965 INFO L857 garLoopResultBuilder]: For program point L133-2(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,965 INFO L857 garLoopResultBuilder]: For program point L133-3(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,965 INFO L857 garLoopResultBuilder]: For program point L133-4(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,965 INFO L857 garLoopResultBuilder]: For program point L133-5(lines 133 139) no Hoare annotation was computed. [2021-10-13 07:24:10,965 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 72) no Hoare annotation was computed. [2021-10-13 07:24:10,970 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:24:11,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:24:11 BoogieIcfgContainer [2021-10-13 07:24:11,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:24:11,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:24:11,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:24:11,008 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:24:11,009 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:23:16" (3/4) ... [2021-10-13 07:24:11,012 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:24:11,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-13 07:24:11,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-13 07:24:11,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-13 07:24:11,043 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-13 07:24:11,045 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 07:24:11,046 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:11,048 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:24:11,079 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp)) || (methAndRunningLastTime == 0bv32 && ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning))) [2021-10-13 07:24:11,079 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp) [2021-10-13 07:24:11,082 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 07:24:11,083 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) [2021-10-13 07:24:11,084 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 07:24:11,084 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning [2021-10-13 07:24:11,085 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && methaneLevelCritical == 1bv32) && tmp___0 == 1bv32) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp___0 == 1bv32) && tmp == 0bv32) [2021-10-13 07:24:11,086 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 1bv32) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 1bv32)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 07:24:11,088 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 07:24:11,088 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-13 07:24:11,159 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:24:11,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:24:11,161 INFO L168 Benchmark]: Toolchain (without parser) took 58850.69 ms. Allocated memory was 62.9 MB in the beginning and 255.9 MB in the end (delta: 192.9 MB). Free memory was 40.9 MB in the beginning and 219.9 MB in the end (delta: -179.0 MB). Peak memory consumption was 164.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,162 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:24:11,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.15 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 29.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.24 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 42.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,163 INFO L168 Benchmark]: Boogie Preprocessor took 106.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 39.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,164 INFO L168 Benchmark]: RCFGBuilder took 3079.15 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 39.8 MB in the beginning and 49.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,164 INFO L168 Benchmark]: TraceAbstraction took 54524.87 ms. Allocated memory was 88.1 MB in the beginning and 255.9 MB in the end (delta: 167.8 MB). Free memory was 49.4 MB in the beginning and 82.5 MB in the end (delta: -33.1 MB). Peak memory consumption was 152.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,165 INFO L168 Benchmark]: Witness Printer took 152.06 ms. Allocated memory is still 255.9 MB. Free memory was 82.5 MB in the beginning and 219.9 MB in the end (delta: -137.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:24:11,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 835.15 ms. Allocated memory is still 62.9 MB. Free memory was 40.6 MB in the beginning and 29.4 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.24 ms. Allocated memory is still 62.9 MB. Free memory was 29.2 MB in the beginning and 42.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 106.94 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 39.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3079.15 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 39.8 MB in the beginning and 49.9 MB in the end (delta: -10.1 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 54524.87 ms. Allocated memory was 88.1 MB in the beginning and 255.9 MB in the end (delta: 167.8 MB). Free memory was 49.4 MB in the beginning and 82.5 MB in the end (delta: -33.1 MB). Peak memory consumption was 152.7 MB. Max. memory is 16.1 GB. * Witness Printer took 152.06 ms. Allocated memory is still 255.9 MB. Free memory was 82.5 MB in the beginning and 219.9 MB in the end (delta: -137.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 996]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 996]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 996]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 139 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 54417.6ms, OverallIterations: 14, TraceHistogramMax: 3, EmptinessCheckTime: 41.5ms, AutomataDifference: 10611.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 25115.2ms, InitialAbstractionConstructionTime: 15.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1621 SDtfs, 2518 SDslu, 3768 SDs, 0 SdLazy, 446 SolverSat, 100 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8427.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1776 GetRequests, 1684 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 999.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=386occurred in iteration=13, InterpolantAutomatonStates: 87, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 528.0ms AutomataMinimizationTime, 14 MinimizatonAttempts, 3497 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 131 NumberOfFragments, 858 HoareAnnotationTreeSize, 56 FomulaSimplifications, 17463629 FormulaSimplificationTreeSizeReduction, 7038.3ms HoareSimplificationTime, 56 FomulaSimplificationsInter, 3622510 FormulaSimplificationTreeSizeReductionInter, 18052.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 431.1ms SsaConstructionTime, 2510.7ms SatisfiabilityAnalysisTime, 7049.7ms InterpolantComputationTime, 879 NumberOfCodeBlocks, 879 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1722 ConstructedInterpolants, 0 QuantifiedInterpolants, 3356 SizeOfPredicates, 40 NumberOfNonLiveVariables, 4278 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 36 InterpolantComputations, 27 PerfectInterpolantSequences, 560/608 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && methaneLevelCritical == 1bv32) && tmp___0 == 1bv32) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp___0 == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp)) || (methAndRunningLastTime == 0bv32 && ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning))) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: (((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 1bv32) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 1bv32)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 978]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 819]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 601]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && systemActive == 1bv32)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && 0bv32 == tmp) - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && 0bv32 == \result) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && !(waterLevel == 0bv32))) || (((splverifierCounter == 0bv32 && systemActive == 1bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 770]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 950]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 714]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 07:24:11,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6b573dd-edf1-4ccf-a0be-9749a4a9af08/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...