./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 ............................................................................................................................................ 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_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:45:11,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:45:11,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:45:11,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:45:11,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:45:11,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:45:11,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:45:11,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:45:11,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:45:11,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:45:11,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:45:11,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:45:11,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:45:11,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:45:11,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:45:11,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:45:11,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:45:11,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:45:11,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:45:11,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:45:11,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:45:11,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:45:11,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:45:11,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:45:11,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:45:11,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:45:11,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:45:11,348 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:45:11,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:45:11,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:45:11,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:45:11,352 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:45:11,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:45:11,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:45:11,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:45:11,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:45:11,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:45:11,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:45:11,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:45:11,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:45:11,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:45:11,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 10:45:11,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:45:11,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:45:11,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:45:11,391 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:45:11,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:45:11,391 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:45:11,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 10:45:11,392 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:45:11,392 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:45:11,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 10:45:11,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 10:45:11,393 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:45:11,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 10:45:11,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 10:45:11,394 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 10:45:11,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:45:11,395 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:45:11,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 10:45:11,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:45:11,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:45:11,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:45:11,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:45:11,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:45:11,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:45:11,396 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:45:11,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:45:11,397 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:45:11,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:45:11,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:45:11,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:45:11,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:45:11,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:45:11,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:45:11,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:45:11,399 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 10:45:11,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 10:45:11,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:45:11,399 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:45:11,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:45:11,400 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_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 [2021-10-24 10:45:11,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:45:11,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:45:11,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:45:11,686 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:45:11,687 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:45:11,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-10-24 10:45:11,802 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/6bf6fb298/a04b33efd899425880a501bc7aaefe42/FLAGcf278cbf1 [2021-10-24 10:45:12,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:45:12,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-10-24 10:45:12,367 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/6bf6fb298/a04b33efd899425880a501bc7aaefe42/FLAGcf278cbf1 [2021-10-24 10:45:12,653 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/6bf6fb298/a04b33efd899425880a501bc7aaefe42 [2021-10-24 10:45:12,656 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:45:12,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:45:12,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:12,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:45:12,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:45:12,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:12" (1/1) ... [2021-10-24 10:45:12,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6986450d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:12, skipping insertion in model container [2021-10-24 10:45:12,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:12" (1/1) ... [2021-10-24 10:45:12,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:45:12,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:45:13,010 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_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2021-10-24 10:45:13,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:13,255 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-24 10:45:13,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4b2a6582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:13, skipping insertion in model container [2021-10-24 10:45:13,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:13,284 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-24 10:45:13,286 INFO L168 Benchmark]: Toolchain (without parser) took 627.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 63.1 MB in the beginning and 102.3 MB in the end (delta: -39.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:13,287 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:45:13,289 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.03 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.9 MB in the beginning and 102.3 MB in the end (delta: -39.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2021-10-24 10:45:13,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 64.6 MB in the end (delta: 62.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 624.03 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 62.9 MB in the beginning and 102.3 MB in the end (delta: -39.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 408]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 10:45:16,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 10:45:16,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 10:45:16,114 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 10:45:16,114 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 10:45:16,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 10:45:16,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 10:45:16,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 10:45:16,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 10:45:16,125 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 10:45:16,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 10:45:16,128 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 10:45:16,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 10:45:16,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 10:45:16,133 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 10:45:16,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 10:45:16,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 10:45:16,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 10:45:16,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 10:45:16,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 10:45:16,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 10:45:16,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 10:45:16,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 10:45:16,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 10:45:16,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 10:45:16,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 10:45:16,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 10:45:16,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 10:45:16,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 10:45:16,195 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 10:45:16,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 10:45:16,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 10:45:16,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 10:45:16,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 10:45:16,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 10:45:16,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 10:45:16,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 10:45:16,202 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 10:45:16,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 10:45:16,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 10:45:16,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 10:45:16,206 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 10:45:16,236 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 10:45:16,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 10:45:16,238 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 10:45:16,238 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 10:45:16,238 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 10:45:16,239 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 10:45:16,239 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 10:45:16,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 10:45:16,239 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 10:45:16,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 10:45:16,241 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 10:45:16,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 10:45:16,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 10:45:16,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 10:45:16,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 10:45:16,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 10:45:16,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 10:45:16,242 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 10:45:16,243 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 10:45:16,243 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 10:45:16,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 10:45:16,243 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 10:45:16,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 10:45:16,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 10:45:16,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 10:45:16,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 10:45:16,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:45:16,245 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 10:45:16,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 10:45:16,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 10:45:16,245 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 10:45:16,246 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:16,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 10:45:16,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 10:45:16,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 10:45:16,247 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_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a218bb67596641a4ce71d6987e627686ed630ab4299f0e9b54dfa98d78549c82 [2021-10-24 10:45:16,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 10:45:16,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 10:45:16,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 10:45:16,714 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 10:45:16,715 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 10:45:16,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-10-24 10:45:16,806 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/e8b68764f/2e8bb8f61710483ba3aae20d25a78a11/FLAG88dd7e8d3 [2021-10-24 10:45:17,364 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 10:45:17,365 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c [2021-10-24 10:45:17,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/e8b68764f/2e8bb8f61710483ba3aae20d25a78a11/FLAG88dd7e8d3 [2021-10-24 10:45:17,726 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/data/e8b68764f/2e8bb8f61710483ba3aae20d25a78a11 [2021-10-24 10:45:17,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 10:45:17,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 10:45:17,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:17,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 10:45:17,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 10:45:17,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:17" (1/1) ... [2021-10-24 10:45:17,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e95bf83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:17, skipping insertion in model container [2021-10-24 10:45:17,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:45:17" (1/1) ... [2021-10-24 10:45:17,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 10:45:17,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:45:18,024 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_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2021-10-24 10:45:18,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:18,271 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-24 10:45:18,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 10:45:18,298 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_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2021-10-24 10:45:18,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:18,423 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 10:45:18,447 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_686ad021-7d4b-4d88-97d3-aff7df316a21/sv-benchmarks/c/product-lines/minepump_spec2_product60.cil.c[3241,3254] [2021-10-24 10:45:18,501 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 10:45:18,534 INFO L208 MainTranslator]: Completed translation [2021-10-24 10:45:18,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18 WrapperNode [2021-10-24 10:45:18,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 10:45:18,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 10:45:18,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 10:45:18,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 10:45:18,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,584 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 10:45:18,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 10:45:18,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 10:45:18,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 10:45:18,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 10:45:18,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 10:45:18,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 10:45:18,716 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 10:45:18,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (1/1) ... [2021-10-24 10:45:18,729 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 10:45:18,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:45:18,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 10:45:18,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 10:45:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 10:45:18,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 10:45:18,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 10:45:18,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 10:45:21,420 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 10:45:21,421 INFO L299 CfgBuilder]: Removed 200 assume(true) statements. [2021-10-24 10:45:21,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:21 BoogieIcfgContainer [2021-10-24 10:45:21,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 10:45:21,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 10:45:21,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 10:45:21,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 10:45:21,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:45:17" (1/3) ... [2021-10-24 10:45:21,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d04e60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:45:21, skipping insertion in model container [2021-10-24 10:45:21,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:45:18" (2/3) ... [2021-10-24 10:45:21,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d04e60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:45:21, skipping insertion in model container [2021-10-24 10:45:21,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:21" (3/3) ... [2021-10-24 10:45:21,437 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product60.cil.c [2021-10-24 10:45:21,443 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 10:45:21,443 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-24 10:45:21,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 10:45:21,525 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 10:45:21,525 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-24 10:45:21,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 137 states have (on average 1.5401459854014599) internal successors, (211), 140 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:21,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-24 10:45:21,569 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:21,570 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:21,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:21,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:21,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1212648512, now seen corresponding path program 1 times [2021-10-24 10:45:21,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:21,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518812806] [2021-10-24 10:45:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:21,605 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:21,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:21,608 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:21,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 10:45:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:21,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 10:45:21,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:21,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:22,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:22,023 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:22,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518812806] [2021-10-24 10:45:22,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518812806] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:22,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:22,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 10:45:22,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909044199] [2021-10-24 10:45:22,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 10:45:22,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:22,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 10:45:22,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 10:45:22,057 INFO L87 Difference]: Start difference. First operand has 141 states, 137 states have (on average 1.5401459854014599) internal successors, (211), 140 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:22,121 INFO L93 Difference]: Finished difference Result 275 states and 414 transitions. [2021-10-24 10:45:22,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 10:45:22,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-24 10:45:22,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:22,141 INFO L225 Difference]: With dead ends: 275 [2021-10-24 10:45:22,141 INFO L226 Difference]: Without dead ends: 137 [2021-10-24 10:45:22,149 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 [2021-10-24 10:45:22,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-10-24 10:45:22,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-10-24 10:45:22,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 134 states have (on average 1.4850746268656716) internal successors, (199), 136 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 199 transitions. [2021-10-24 10:45:22,194 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 199 transitions. Word has length 18 [2021-10-24 10:45:22,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:22,195 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 199 transitions. [2021-10-24 10:45:22,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,196 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 199 transitions. [2021-10-24 10:45:22,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-24 10:45:22,198 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:22,198 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:22,211 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-24 10:45:22,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:22,402 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:22,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1186120291, now seen corresponding path program 1 times [2021-10-24 10:45:22,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:22,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [311057122] [2021-10-24 10:45:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:22,404 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:22,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:22,406 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:22,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 10:45:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:22,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:22,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:22,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:22,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:22,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:22,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:22,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [311057122] [2021-10-24 10:45:22,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [311057122] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:22,741 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:22,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:45:22,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626673474] [2021-10-24 10:45:22,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:22,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:22,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:22,744 INFO L87 Difference]: Start difference. First operand 137 states and 199 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:22,760 INFO L93 Difference]: Finished difference Result 137 states and 199 transitions. [2021-10-24 10:45:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:45:22,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-24 10:45:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:22,762 INFO L225 Difference]: With dead ends: 137 [2021-10-24 10:45:22,762 INFO L226 Difference]: Without dead ends: 57 [2021-10-24 10:45:22,763 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-24 10:45:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-24 10:45:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 82 transitions. [2021-10-24 10:45:22,770 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 82 transitions. Word has length 19 [2021-10-24 10:45:22,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:22,770 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 82 transitions. [2021-10-24 10:45:22,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 82 transitions. [2021-10-24 10:45:22,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-24 10:45:22,779 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:22,779 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:22,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:22,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:22,992 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:22,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:22,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1540902592, now seen corresponding path program 1 times [2021-10-24 10:45:22,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:22,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075650910] [2021-10-24 10:45:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:22,994 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:22,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:22,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:23,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-24 10:45:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:23,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:23,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:23,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:23,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:23,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075650910] [2021-10-24 10:45:23,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2075650910] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:23,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:23,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-24 10:45:23,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870503156] [2021-10-24 10:45:23,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:23,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:23,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:23,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:23,382 INFO L87 Difference]: Start difference. First operand 57 states and 82 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:23,455 INFO L93 Difference]: Finished difference Result 181 states and 268 transitions. [2021-10-24 10:45:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:45:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-24 10:45:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:23,462 INFO L225 Difference]: With dead ends: 181 [2021-10-24 10:45:23,462 INFO L226 Difference]: Without dead ends: 131 [2021-10-24 10:45:23,466 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-24 10:45:23,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 77. [2021-10-24 10:45:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.486842105263158) internal successors, (113), 76 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:23,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 113 transitions. [2021-10-24 10:45:23,486 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 113 transitions. Word has length 24 [2021-10-24 10:45:23,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:23,487 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 113 transitions. [2021-10-24 10:45:23,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:23,487 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 113 transitions. [2021-10-24 10:45:23,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-24 10:45:23,489 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:23,489 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:23,505 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:23,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:23,692 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:23,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:23,693 INFO L82 PathProgramCache]: Analyzing trace with hash 2071903209, now seen corresponding path program 1 times [2021-10-24 10:45:23,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:23,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342546386] [2021-10-24 10:45:23,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:23,694 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:23,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:23,695 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:23,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-24 10:45:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:23,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:23,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:23,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:24,026 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:24,027 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342546386] [2021-10-24 10:45:24,027 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342546386] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:24,027 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:24,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-24 10:45:24,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96952940] [2021-10-24 10:45:24,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:45:24,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:24,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:45:24,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:45:24,029 INFO L87 Difference]: Start difference. First operand 77 states and 113 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:24,095 INFO L93 Difference]: Finished difference Result 169 states and 251 transitions. [2021-10-24 10:45:24,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:45:24,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-10-24 10:45:24,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:24,097 INFO L225 Difference]: With dead ends: 169 [2021-10-24 10:45:24,097 INFO L226 Difference]: Without dead ends: 99 [2021-10-24 10:45:24,098 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-24 10:45:24,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-10-24 10:45:24,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2021-10-24 10:45:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 1.4479166666666667) internal successors, (139), 96 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2021-10-24 10:45:24,120 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 26 [2021-10-24 10:45:24,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:24,121 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2021-10-24 10:45:24,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2021-10-24 10:45:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-24 10:45:24,127 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:24,127 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] [2021-10-24 10:45:24,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-24 10:45:24,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:24,339 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:24,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:24,340 INFO L82 PathProgramCache]: Analyzing trace with hash 917787529, now seen corresponding path program 1 times [2021-10-24 10:45:24,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:24,341 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459588021] [2021-10-24 10:45:24,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:24,341 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:24,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:24,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:24,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-24 10:45:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:24,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:24,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:24,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:24,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:24,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:24,813 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:24,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459588021] [2021-10-24 10:45:24,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459588021] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:24,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:24,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-24 10:45:24,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901258361] [2021-10-24 10:45:24,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:45:24,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:24,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:45:24,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:24,816 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:24,957 INFO L93 Difference]: Finished difference Result 484 states and 705 transitions. [2021-10-24 10:45:24,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-24 10:45:24,958 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) 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 27 [2021-10-24 10:45:24,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:24,961 INFO L225 Difference]: With dead ends: 484 [2021-10-24 10:45:24,961 INFO L226 Difference]: Without dead ends: 394 [2021-10-24 10:45:24,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.7ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:45:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-10-24 10:45:24,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 176. [2021-10-24 10:45:24,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.4228571428571428) internal successors, (249), 175 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 249 transitions. [2021-10-24 10:45:24,995 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 249 transitions. Word has length 27 [2021-10-24 10:45:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:24,995 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 249 transitions. [2021-10-24 10:45:24,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 249 transitions. [2021-10-24 10:45:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-24 10:45:24,997 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:24,997 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] [2021-10-24 10:45:25,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:25,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:25,198 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:25,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:25,198 INFO L82 PathProgramCache]: Analyzing trace with hash -516357631, now seen corresponding path program 1 times [2021-10-24 10:45:25,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:25,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795733603] [2021-10-24 10:45:25,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:25,201 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:25,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:25,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:25,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-24 10:45:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:25,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:25,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:25,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:25,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:25,645 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:25,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795733603] [2021-10-24 10:45:25,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795733603] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:25,646 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:25,646 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:45:25,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282691434] [2021-10-24 10:45:25,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:45:25,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:45:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:25,659 INFO L87 Difference]: Start difference. First operand 176 states and 249 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:25,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:25,885 INFO L93 Difference]: Finished difference Result 659 states and 937 transitions. [2021-10-24 10:45:25,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-24 10:45:25,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 28 [2021-10-24 10:45:25,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:25,890 INFO L225 Difference]: With dead ends: 659 [2021-10-24 10:45:25,890 INFO L226 Difference]: Without dead ends: 490 [2021-10-24 10:45:25,891 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 49.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:45:25,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2021-10-24 10:45:25,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 174. [2021-10-24 10:45:25,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 1.4046242774566473) internal successors, (243), 173 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:25,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2021-10-24 10:45:25,919 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 28 [2021-10-24 10:45:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:25,920 INFO L470 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2021-10-24 10:45:25,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2021-10-24 10:45:25,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:45:25,922 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:25,922 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] [2021-10-24 10:45:25,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-10-24 10:45:26,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:26,137 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:26,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:26,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1801944586, now seen corresponding path program 1 times [2021-10-24 10:45:26,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:26,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988301943] [2021-10-24 10:45:26,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:26,140 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:26,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:26,141 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:26,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-24 10:45:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:26,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-24 10:45:26,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:26,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:26,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:26,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:26,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988301943] [2021-10-24 10:45:26,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988301943] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:26,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:26,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-24 10:45:26,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400472398] [2021-10-24 10:45:26,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-24 10:45:26,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:26,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-24 10:45:26,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:45:26,691 INFO L87 Difference]: Start difference. First operand 174 states and 243 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) [2021-10-24 10:45:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:26,824 INFO L93 Difference]: Finished difference Result 659 states and 923 transitions. [2021-10-24 10:45:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-24 10:45:26,825 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 [2021-10-24 10:45:26,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:26,831 INFO L225 Difference]: With dead ends: 659 [2021-10-24 10:45:26,832 INFO L226 Difference]: Without dead ends: 492 [2021-10-24 10:45:26,833 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:45:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-10-24 10:45:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 182. [2021-10-24 10:45:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 1.3867403314917126) internal successors, (251), 181 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:26,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 251 transitions. [2021-10-24 10:45:26,871 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 251 transitions. Word has length 36 [2021-10-24 10:45:26,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:26,872 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 251 transitions. [2021-10-24 10:45:26,872 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) [2021-10-24 10:45:26,872 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 251 transitions. [2021-10-24 10:45:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:45:26,875 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:26,875 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] [2021-10-24 10:45:26,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:27,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:27,090 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:27,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:27,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1481905460, now seen corresponding path program 1 times [2021-10-24 10:45:27,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:27,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [318191169] [2021-10-24 10:45:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:27,092 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:27,094 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:27,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-24 10:45:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:27,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:27,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:27,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:27,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:27,647 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:27,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [318191169] [2021-10-24 10:45:27,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [318191169] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:27,654 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:27,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-24 10:45:27,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260497050] [2021-10-24 10:45:27,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-24 10:45:27,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:27,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-24 10:45:27,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-24 10:45:27,658 INFO L87 Difference]: Start difference. First operand 182 states and 251 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) [2021-10-24 10:45:27,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:27,782 INFO L93 Difference]: Finished difference Result 519 states and 713 transitions. [2021-10-24 10:45:27,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:45:27,782 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 [2021-10-24 10:45:27,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:27,786 INFO L225 Difference]: With dead ends: 519 [2021-10-24 10:45:27,786 INFO L226 Difference]: Without dead ends: 344 [2021-10-24 10:45:27,788 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-24 10:45:27,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-10-24 10:45:27,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 194. [2021-10-24 10:45:27,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 1.3626943005181347) internal successors, (263), 193 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:27,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2021-10-24 10:45:27,835 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 36 [2021-10-24 10:45:27,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:27,836 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2021-10-24 10:45:27,836 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) [2021-10-24 10:45:27,836 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2021-10-24 10:45:27,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-24 10:45:27,839 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:27,839 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] [2021-10-24 10:45:27,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:28,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:28,055 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash 780876232, now seen corresponding path program 1 times [2021-10-24 10:45:28,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:28,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924559903] [2021-10-24 10:45:28,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:28,057 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:28,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:28,058 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:28,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-24 10:45:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:28,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:28,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:28,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:28,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:28,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924559903] [2021-10-24 10:45:28,673 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924559903] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:28,673 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:28,674 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-24 10:45:28,674 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159298019] [2021-10-24 10:45:28,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-24 10:45:28,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-24 10:45:28,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:28,676 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:28,821 INFO L93 Difference]: Finished difference Result 616 states and 839 transitions. [2021-10-24 10:45:28,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-24 10:45:28,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-10-24 10:45:28,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:28,825 INFO L225 Difference]: With dead ends: 616 [2021-10-24 10:45:28,825 INFO L226 Difference]: Without dead ends: 429 [2021-10-24 10:45:28,826 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-24 10:45:28,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-10-24 10:45:28,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 339. [2021-10-24 10:45:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.349112426035503) internal successors, (456), 338 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 456 transitions. [2021-10-24 10:45:28,891 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 456 transitions. Word has length 36 [2021-10-24 10:45:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:28,892 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 456 transitions. [2021-10-24 10:45:28,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 456 transitions. [2021-10-24 10:45:28,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-24 10:45:28,893 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:28,893 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] [2021-10-24 10:45:28,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:29,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:29,107 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash -693602552, now seen corresponding path program 1 times [2021-10-24 10:45:29,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:29,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [946416008] [2021-10-24 10:45:29,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:29,108 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:29,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:29,110 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:29,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-24 10:45:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:29,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:45:29,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:29,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:29,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:29,738 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:29,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [946416008] [2021-10-24 10:45:29,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [946416008] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:29,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:29,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-24 10:45:29,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303011108] [2021-10-24 10:45:29,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-24 10:45:29,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:29,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-24 10:45:29,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:45:29,740 INFO L87 Difference]: Start difference. First operand 339 states and 456 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) [2021-10-24 10:45:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:33,310 INFO L93 Difference]: Finished difference Result 1407 states and 1869 transitions. [2021-10-24 10:45:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-24 10:45:33,311 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 [2021-10-24 10:45:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:33,319 INFO L225 Difference]: With dead ends: 1407 [2021-10-24 10:45:33,319 INFO L226 Difference]: Without dead ends: 1075 [2021-10-24 10:45:33,321 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 195.8ms TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2021-10-24 10:45:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-10-24 10:45:33,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 339. [2021-10-24 10:45:33,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.3254437869822486) internal successors, (448), 338 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 448 transitions. [2021-10-24 10:45:33,406 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 448 transitions. Word has length 37 [2021-10-24 10:45:33,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:33,406 INFO L470 AbstractCegarLoop]: Abstraction has 339 states and 448 transitions. [2021-10-24 10:45:33,407 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) [2021-10-24 10:45:33,407 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 448 transitions. [2021-10-24 10:45:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-24 10:45:33,408 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:33,409 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] [2021-10-24 10:45:33,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:33,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:33,624 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:33,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:33,624 INFO L82 PathProgramCache]: Analyzing trace with hash -805983262, now seen corresponding path program 1 times [2021-10-24 10:45:33,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:33,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956892820] [2021-10-24 10:45:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:33,625 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:33,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:33,627 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:33,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-24 10:45:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:34,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:45:34,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:34,317 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:45:34,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-24 10:45:34,630 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:34,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956892820] [2021-10-24 10:45:34,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956892820] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:45:34,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1981884416] [2021-10-24 10:45:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:34,631 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:34,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:45:34,634 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:45:34,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-24 10:45:35,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:35,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:35,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:35,200 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:35,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:35,375 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 10:45:35,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1981884416] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:35,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-24 10:45:35,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-10-24 10:45:35,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124575250] [2021-10-24 10:45:35,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:45:35,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:35,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:45:35,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:45:35,377 INFO L87 Difference]: Start difference. First operand 339 states and 448 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) [2021-10-24 10:45:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:35,533 INFO L93 Difference]: Finished difference Result 559 states and 736 transitions. [2021-10-24 10:45:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:45:35,534 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 [2021-10-24 10:45:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:35,537 INFO L225 Difference]: With dead ends: 559 [2021-10-24 10:45:35,537 INFO L226 Difference]: Without dead ends: 557 [2021-10-24 10:45:35,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 59.8ms TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-10-24 10:45:35,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2021-10-24 10:45:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 391. [2021-10-24 10:45:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.3461538461538463) internal successors, (525), 390 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 525 transitions. [2021-10-24 10:45:35,611 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 525 transitions. Word has length 58 [2021-10-24 10:45:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:35,611 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 525 transitions. [2021-10-24 10:45:35,612 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) [2021-10-24 10:45:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 525 transitions. [2021-10-24 10:45:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-24 10:45:35,613 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:35,613 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] [2021-10-24 10:45:35,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:35,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:36,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:36,029 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:36,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:36,030 INFO L82 PathProgramCache]: Analyzing trace with hash 750831267, now seen corresponding path program 1 times [2021-10-24 10:45:36,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:36,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290951466] [2021-10-24 10:45:36,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:36,031 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:36,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:36,033 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:36,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-10-24 10:45:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:36,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-24 10:45:36,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:36,770 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-24 10:45:36,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-24 10:45:37,126 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:37,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290951466] [2021-10-24 10:45:37,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1290951466] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:45:37,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1272043900] [2021-10-24 10:45:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:37,127 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:37,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:45:37,129 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:45:37,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-10-24 10:45:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:37,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-24 10:45:37,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:38,080 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-24 10:45:38,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-24 10:45:38,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1272043900] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:45:38,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445460863] [2021-10-24 10:45:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:38,456 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 10:45:38,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 10:45:38,461 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 10:45:38,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-24 10:45:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:38,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-24 10:45:38,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:45:39,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:39,662 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-24 10:45:39,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445460863] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-24 10:45:39,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-24 10:45:39,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 6, 5, 8] total 15 [2021-10-24 10:45:39,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402553740] [2021-10-24 10:45:39,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:45:39,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:39,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:45:39,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-10-24 10:45:39,665 INFO L87 Difference]: Start difference. First operand 391 states and 525 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) [2021-10-24 10:45:44,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:44,097 INFO L93 Difference]: Finished difference Result 3382 states and 4517 transitions. [2021-10-24 10:45:44,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-24 10:45:44,097 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 [2021-10-24 10:45:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:44,116 INFO L225 Difference]: With dead ends: 3382 [2021-10-24 10:45:44,116 INFO L226 Difference]: Without dead ends: 2998 [2021-10-24 10:45:44,120 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 482 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 430.2ms TimeCoverageRelationStatistics Valid=168, Invalid=534, Unknown=0, NotChecked=0, Total=702 [2021-10-24 10:45:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-10-24 10:45:44,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 785. [2021-10-24 10:45:44,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 784 states have (on average 1.4005102040816326) internal successors, (1098), 784 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:44,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1098 transitions. [2021-10-24 10:45:44,286 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1098 transitions. Word has length 82 [2021-10-24 10:45:44,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:44,287 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 1098 transitions. [2021-10-24 10:45:44,287 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) [2021-10-24 10:45:44,287 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1098 transitions. [2021-10-24 10:45:44,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-10-24 10:45:44,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:44,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 10:45:44,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:44,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-10-24 10:45:44,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2021-10-24 10:45:44,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:44,906 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:44,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:44,906 INFO L82 PathProgramCache]: Analyzing trace with hash 356464481, now seen corresponding path program 1 times [2021-10-24 10:45:44,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:44,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776292543] [2021-10-24 10:45:44,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:44,907 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:44,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:44,908 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:44,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-24 10:45:45,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:45,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-24 10:45:45,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-24 10:45:45,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-24 10:45:45,764 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:45,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776292543] [2021-10-24 10:45:45,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776292543] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:45,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 10:45:45,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-24 10:45:45,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266545087] [2021-10-24 10:45:45,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-24 10:45:45,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:45,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-24 10:45:45,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-24 10:45:45,766 INFO L87 Difference]: Start difference. First operand 785 states and 1098 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:46,007 INFO L93 Difference]: Finished difference Result 1828 states and 2498 transitions. [2021-10-24 10:45:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-24 10:45:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 [2021-10-24 10:45:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:46,015 INFO L225 Difference]: With dead ends: 1828 [2021-10-24 10:45:46,015 INFO L226 Difference]: Without dead ends: 1050 [2021-10-24 10:45:46,017 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 43.9ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-24 10:45:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2021-10-24 10:45:46,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 466. [2021-10-24 10:45:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 1.356989247311828) internal successors, (631), 465 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:46,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 631 transitions. [2021-10-24 10:45:46,085 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 631 transitions. Word has length 82 [2021-10-24 10:45:46,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:46,085 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 631 transitions. [2021-10-24 10:45:46,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:46,086 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 631 transitions. [2021-10-24 10:45:46,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-10-24 10:45:46,087 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 10:45:46,088 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] [2021-10-24 10:45:46,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:46,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 10:45:46,311 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 10:45:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 10:45:46,312 INFO L82 PathProgramCache]: Analyzing trace with hash 569669167, now seen corresponding path program 1 times [2021-10-24 10:45:46,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 10:45:46,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682017730] [2021-10-24 10:45:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:46,312 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 10:45:46,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 10:45:46,313 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 10:45:46,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-24 10:45:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:46,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-24 10:45:46,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-24 10:45:46,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 28 proven. 5 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-24 10:45:47,265 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 10:45:47,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682017730] [2021-10-24 10:45:47,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682017730] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-24 10:45:47,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [856188129] [2021-10-24 10:45:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 10:45:47,265 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:47,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 10:45:47,270 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 10:45:47,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2021-10-24 10:45:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 10:45:47,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-24 10:45:47,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 10:45:48,160 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-24 10:45:48,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 10:45:48,384 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-24 10:45:48,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [856188129] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 10:45:48,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-24 10:45:48,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 6 [2021-10-24 10:45:48,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465486199] [2021-10-24 10:45:48,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-24 10:45:48,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 10:45:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-24 10:45:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:45:48,387 INFO L87 Difference]: Start difference. First operand 466 states and 631 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) [2021-10-24 10:45:49,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 10:45:49,900 INFO L93 Difference]: Finished difference Result 769 states and 1026 transitions. [2021-10-24 10:45:49,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-24 10:45:49,900 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 [2021-10-24 10:45:49,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 10:45:49,901 INFO L225 Difference]: With dead ends: 769 [2021-10-24 10:45:49,901 INFO L226 Difference]: Without dead ends: 0 [2021-10-24 10:45:49,902 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-24 10:45:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-24 10:45:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-24 10:45:49,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 10:45:49,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-24 10:45:49,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2021-10-24 10:45:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 10:45:49,903 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-24 10:45:49,904 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) [2021-10-24 10:45:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-24 10:45:49,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-24 10:45:49,906 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:45:49,907 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:45:49,907 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 10:45:49,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-24 10:45:50,123 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2021-10-24 10:45:50,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt [2021-10-24 10:45:50,323 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-24 10:45:50,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:50,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:50,358 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:50,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:50,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:50,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,676 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:52,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:54,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:54,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:54,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:54,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:57,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,680 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,686 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:58,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:59,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:45:59,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:01,981 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:01,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:02,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:02,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:03,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:05,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:05,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:05,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:05,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:05,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-24 10:46:33,989 WARN L207 SmtUtils]: Spent 6.31 s on a formula simplification. DAG size of input: 338 DAG size of output: 24 [2021-10-24 10:46:39,284 WARN L207 SmtUtils]: Spent 5.04 s on a formula simplification. DAG size of input: 316 DAG size of output: 23 [2021-10-24 10:46:44,821 WARN L207 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 326 DAG size of output: 27 [2021-10-24 10:46:46,806 INFO L853 garLoopResultBuilder]: At program point L101-4(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,806 INFO L853 garLoopResultBuilder]: At program point L960(lines 945 963) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse2 (or (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32)) (not (= ~waterLevel~0 (_ bv1 32))))) (.cse3 (= ULTIMATE.start_isLowWaterLevel_~tmp~9 (_ bv0 32))) (.cse4 (not (= ~systemActive~0 (_ bv0 32)))) (.cse5 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 (_ bv1 32)))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse4 .cse5))) [2021-10-24 10:46:46,807 INFO L853 garLoopResultBuilder]: At program point L101-5(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,807 INFO L853 garLoopResultBuilder]: At program point L960-1(lines 945 963) the Hoare annotation is: false [2021-10-24 10:46:46,807 INFO L853 garLoopResultBuilder]: At program point L101-6(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,807 INFO L853 garLoopResultBuilder]: At program point L960-2(lines 945 963) the Hoare annotation is: false [2021-10-24 10:46:46,808 INFO L853 garLoopResultBuilder]: At program point L101-7(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,808 INFO L853 garLoopResultBuilder]: At program point L101-8(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,808 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,809 INFO L853 garLoopResultBuilder]: At program point L994(lines 989 996) 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)) [2021-10-24 10:46:46,809 INFO L853 garLoopResultBuilder]: At program point L764(lines 764 770) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse1) (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse2 (not (= ~systemActive~0 (_ bv0 32)))) (and .cse0 .cse2 .cse1))) [2021-10-24 10:46:46,810 INFO L853 garLoopResultBuilder]: At program point L764-1(lines 764 770) the Hoare annotation is: false [2021-10-24 10:46:46,810 INFO L853 garLoopResultBuilder]: At program point L764-2(lines 764 770) the Hoare annotation is: false [2021-10-24 10:46:46,810 INFO L860 garLoopResultBuilder]: At program point L269(lines 250 272) the Hoare annotation is: true [2021-10-24 10:46:46,810 INFO L853 garLoopResultBuilder]: At program point L304(lines 299 307) 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)) [2021-10-24 10:46:46,812 INFO L853 garLoopResultBuilder]: At program point L371(lines 320 372) the Hoare annotation is: false [2021-10-24 10:46:46,813 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,813 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,813 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,814 INFO L857 garLoopResultBuilder]: For program point L141-3(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,815 INFO L857 garLoopResultBuilder]: For program point L141-4(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,815 INFO L857 garLoopResultBuilder]: For program point L141-5(lines 141 147) no Hoare annotation was computed. [2021-10-24 10:46:46,815 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,815 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 80) no Hoare annotation was computed. [2021-10-24 10:46:46,816 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 974) no Hoare annotation was computed. [2021-10-24 10:46:46,816 INFO L853 garLoopResultBuilder]: At program point L968-1(lines 968 974) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse1) (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1))) [2021-10-24 10:46:46,816 INFO L857 garLoopResultBuilder]: For program point L935(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,816 INFO L857 garLoopResultBuilder]: For program point L935-2(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,816 INFO L857 garLoopResultBuilder]: For program point L935-3(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,817 INFO L857 garLoopResultBuilder]: For program point L935-5(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,817 INFO L857 garLoopResultBuilder]: For program point L935-6(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,817 INFO L857 garLoopResultBuilder]: For program point L935-8(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,817 INFO L857 garLoopResultBuilder]: For program point L935-9(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,817 INFO L857 garLoopResultBuilder]: For program point L935-11(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,818 INFO L857 garLoopResultBuilder]: For program point L935-12(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,818 INFO L857 garLoopResultBuilder]: For program point L935-14(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,818 INFO L857 garLoopResultBuilder]: For program point L935-15(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,818 INFO L857 garLoopResultBuilder]: For program point L935-17(lines 935 939) no Hoare annotation was computed. [2021-10-24 10:46:46,818 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 347) no Hoare annotation was computed. [2021-10-24 10:46:46,820 INFO L853 garLoopResultBuilder]: At program point L341-1(lines 341 347) the Hoare annotation is: (let ((.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse4 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse5 .cse3) (and .cse0 .cse4 .cse2 .cse6))) [2021-10-24 10:46:46,820 INFO L853 garLoopResultBuilder]: At program point L146(lines 137 150) the Hoare annotation is: false [2021-10-24 10:46:46,821 INFO L853 garLoopResultBuilder]: At program point L146-1(lines 137 150) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse3 .cse4) (and .cse0 .cse1 .cse6 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 .cse4))) [2021-10-24 10:46:46,821 INFO L853 garLoopResultBuilder]: At program point L146-2(lines 137 150) the Hoare annotation is: false [2021-10-24 10:46:46,821 INFO L853 garLoopResultBuilder]: At program point L146-3(lines 137 150) the Hoare annotation is: false [2021-10-24 10:46:46,821 INFO L853 garLoopResultBuilder]: At program point L146-4(lines 137 150) the Hoare annotation is: false [2021-10-24 10:46:46,821 INFO L857 garLoopResultBuilder]: For program point L1005(lines 1005 1022) no Hoare annotation was computed. [2021-10-24 10:46:46,822 INFO L853 garLoopResultBuilder]: At program point L146-5(lines 137 150) the Hoare annotation is: false [2021-10-24 10:46:46,823 INFO L853 garLoopResultBuilder]: At program point L1005-1(lines 1 1025) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~10 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse6))) [2021-10-24 10:46:46,824 INFO L857 garLoopResultBuilder]: For program point L1005-2(lines 1005 1022) no Hoare annotation was computed. [2021-10-24 10:46:46,824 INFO L853 garLoopResultBuilder]: At program point L1005-3(lines 1 1025) the Hoare annotation is: false [2021-10-24 10:46:46,824 INFO L857 garLoopResultBuilder]: For program point L1005-4(lines 1005 1022) no Hoare annotation was computed. [2021-10-24 10:46:46,824 INFO L853 garLoopResultBuilder]: At program point L1005-5(lines 1 1025) the Hoare annotation is: false [2021-10-24 10:46:46,825 INFO L853 garLoopResultBuilder]: At program point L941(lines 926 944) the Hoare annotation is: false [2021-10-24 10:46:46,825 INFO L853 garLoopResultBuilder]: At program point L941-1(lines 926 944) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 (_ bv0 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse7 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse6 .cse2 .cse3 .cse4) (and .cse0 .cse7 .cse5 .cse6 .cse3 .cse4) (and .cse0 .cse1 .cse7 .cse3 .cse4))) [2021-10-24 10:46:46,825 INFO L853 garLoopResultBuilder]: At program point L941-2(lines 926 944) the Hoare annotation is: false [2021-10-24 10:46:46,825 INFO L853 garLoopResultBuilder]: At program point L941-3(lines 926 944) the Hoare annotation is: false [2021-10-24 10:46:46,825 INFO L853 garLoopResultBuilder]: At program point L941-4(lines 926 944) the Hoare annotation is: false [2021-10-24 10:46:46,826 INFO L853 garLoopResultBuilder]: At program point L941-5(lines 926 944) the Hoare annotation is: false [2021-10-24 10:46:46,826 INFO L853 garLoopResultBuilder]: At program point L182-2(lines 182 196) the Hoare annotation is: false [2021-10-24 10:46:46,826 INFO L857 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-10-24 10:46:46,826 INFO L857 garLoopResultBuilder]: For program point L1009(lines 1009 1019) no Hoare annotation was computed. [2021-10-24 10:46:46,826 INFO L857 garLoopResultBuilder]: For program point L1009-2(lines 1009 1019) no Hoare annotation was computed. [2021-10-24 10:46:46,827 INFO L853 garLoopResultBuilder]: At program point L877(lines 870 880) the Hoare annotation is: false [2021-10-24 10:46:46,827 INFO L857 garLoopResultBuilder]: For program point L1009-4(lines 1009 1019) no Hoare annotation was computed. [2021-10-24 10:46:46,827 INFO L853 garLoopResultBuilder]: At program point L877-1(lines 870 880) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (not (= ~systemActive~0 (_ bv0 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)) (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse2 .cse3))) [2021-10-24 10:46:46,827 INFO L853 garLoopResultBuilder]: At program point L877-2(lines 870 880) the Hoare annotation is: false [2021-10-24 10:46:46,827 INFO L853 garLoopResultBuilder]: At program point L877-3(lines 870 880) the Hoare annotation is: false [2021-10-24 10:46:46,828 INFO L853 garLoopResultBuilder]: At program point L877-4(lines 870 880) the Hoare annotation is: false [2021-10-24 10:46:46,828 INFO L853 garLoopResultBuilder]: At program point L877-5(lines 870 880) the Hoare annotation is: false [2021-10-24 10:46:46,828 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1016) no Hoare annotation was computed. [2021-10-24 10:46:46,828 INFO L857 garLoopResultBuilder]: For program point L1010-2(lines 1010 1016) no Hoare annotation was computed. [2021-10-24 10:46:46,828 INFO L857 garLoopResultBuilder]: For program point L1010-4(lines 1010 1016) no Hoare annotation was computed. [2021-10-24 10:46:46,829 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-24 10:46:46,829 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 366) no Hoare annotation was computed. [2021-10-24 10:46:46,829 INFO L857 garLoopResultBuilder]: For program point L186(lines 186 190) no Hoare annotation was computed. [2021-10-24 10:46:46,829 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 757 763) no Hoare annotation was computed. [2021-10-24 10:46:46,830 INFO L857 garLoopResultBuilder]: For program point L88(lines 88 92) no Hoare annotation was computed. [2021-10-24 10:46:46,830 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 832) no Hoare annotation was computed. [2021-10-24 10:46:46,830 INFO L857 garLoopResultBuilder]: For program point L815-1(lines 815 832) no Hoare annotation was computed. [2021-10-24 10:46:46,830 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 832) no Hoare annotation was computed. [2021-10-24 10:46:46,831 INFO L853 garLoopResultBuilder]: At program point L156(lines 151 159) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse2 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse3 (not (= ~systemActive~0 (_ bv0 32))))) (or (and .cse0 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse3))) [2021-10-24 10:46:46,831 INFO L853 garLoopResultBuilder]: At program point L156-1(lines 151 159) the Hoare annotation is: false [2021-10-24 10:46:46,832 INFO L853 garLoopResultBuilder]: At program point L156-2(lines 151 159) the Hoare annotation is: false [2021-10-24 10:46:46,832 INFO L857 garLoopResultBuilder]: For program point L322(lines 321 370) no Hoare annotation was computed. [2021-10-24 10:46:46,832 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-24 10:46:46,832 INFO L857 garLoopResultBuilder]: For program point L323(lines 323 327) no Hoare annotation was computed. [2021-10-24 10:46:46,833 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,833 INFO L857 garLoopResultBuilder]: For program point L819(lines 819 827) no Hoare annotation was computed. [2021-10-24 10:46:46,833 INFO L857 garLoopResultBuilder]: For program point L852-2(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L819-1(lines 819 827) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L819-2(lines 819 827) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L852-4(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L852-6(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L852-8(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,834 INFO L857 garLoopResultBuilder]: For program point L852-10(lines 852 858) no Hoare annotation was computed. [2021-10-24 10:46:46,835 INFO L853 garLoopResultBuilder]: At program point L886(lines 881 889) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv0 32) |ULTIMATE.start_isPumpRunning_#res|) (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-24 10:46:46,835 INFO L853 garLoopResultBuilder]: At program point L886-1(lines 881 889) the Hoare annotation is: false [2021-10-24 10:46:46,835 INFO L853 garLoopResultBuilder]: At program point L886-2(lines 881 889) the Hoare annotation is: false [2021-10-24 10:46:46,835 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-24 10:46:46,835 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 365) no Hoare annotation was computed. [2021-10-24 10:46:46,836 INFO L853 garLoopResultBuilder]: At program point L359-1(lines 757 763) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse4) (and .cse0 .cse1 .cse5 .cse3) (and .cse0 .cse5 .cse4))) [2021-10-24 10:46:46,836 INFO L857 garLoopResultBuilder]: For program point L260(lines 260 267) no Hoare annotation was computed. [2021-10-24 10:46:46,836 INFO L860 garLoopResultBuilder]: At program point L260-1(lines 260 267) the Hoare annotation is: true [2021-10-24 10:46:46,836 INFO L857 garLoopResultBuilder]: For program point L954(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,836 INFO L857 garLoopResultBuilder]: For program point L954-2(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L954-3(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L789(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L954-5(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L789-1(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L954-6(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,837 INFO L857 garLoopResultBuilder]: For program point L789-2(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,838 INFO L857 garLoopResultBuilder]: For program point L789-3(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,838 INFO L857 garLoopResultBuilder]: For program point L954-8(lines 954 958) no Hoare annotation was computed. [2021-10-24 10:46:46,838 INFO L857 garLoopResultBuilder]: For program point L789-4(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,838 INFO L857 garLoopResultBuilder]: For program point L789-5(lines 789 806) no Hoare annotation was computed. [2021-10-24 10:46:46,839 INFO L853 garLoopResultBuilder]: At program point L757(lines 756 775) the Hoare annotation is: (let ((.cse2 (not (= ~waterLevel~0 (_ bv0 32)))) (.cse4 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse3 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5) (and .cse0 .cse2 .cse4 .cse3) (and .cse0 .cse1 .cse5))) [2021-10-24 10:46:46,839 INFO L857 garLoopResultBuilder]: For program point L757-1(lines 757 763) no Hoare annotation was computed. [2021-10-24 10:46:46,839 INFO L853 garLoopResultBuilder]: At program point L757-2(lines 756 775) the Hoare annotation is: false [2021-10-24 10:46:46,839 INFO L853 garLoopResultBuilder]: At program point L757-3(lines 756 775) the Hoare annotation is: false [2021-10-24 10:46:46,839 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2021-10-24 10:46:46,839 INFO L857 garLoopResultBuilder]: For program point L64-3(lines 64 68) no Hoare annotation was computed. [2021-10-24 10:46:46,840 INFO L857 garLoopResultBuilder]: For program point L64-6(lines 64 68) no Hoare annotation was computed. [2021-10-24 10:46:46,840 INFO L853 garLoopResultBuilder]: At program point L296(lines 1 1025) 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)) [2021-10-24 10:46:46,840 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-24 10:46:46,840 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,840 INFO L853 garLoopResultBuilder]: At program point L231(lines 227 233) 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)) [2021-10-24 10:46:46,841 INFO L857 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,841 INFO L857 garLoopResultBuilder]: For program point L165-1(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,841 INFO L857 garLoopResultBuilder]: For program point L165-2(line 165) no Hoare annotation was computed. [2021-10-24 10:46:46,841 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,841 INFO L857 garLoopResultBuilder]: For program point L793-1(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L857 garLoopResultBuilder]: For program point L793-2(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L857 garLoopResultBuilder]: For program point L793-3(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L857 garLoopResultBuilder]: For program point L793-4(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L857 garLoopResultBuilder]: For program point L793-5(lines 793 801) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L857 garLoopResultBuilder]: For program point L331(lines 331 337) no Hoare annotation was computed. [2021-10-24 10:46:46,842 INFO L853 garLoopResultBuilder]: At program point L331-1(lines 331 337) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start___utac_acc__Specification2_spec__2_~tmp~10 (_ bv0 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse5 (not (= ~systemActive~0 (_ bv0 32)))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methAndRunningLastTime~0 (_ bv0 32))) (.cse6 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse2 .cse5 .cse6) (and .cse0 .cse1 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse6))) [2021-10-24 10:46:46,843 INFO L853 garLoopResultBuilder]: At program point L101(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,843 INFO L853 garLoopResultBuilder]: At program point L101-1(lines 96 104) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (not (bvslt ~waterLevel~0 (_ bv2 32)))) (.cse2 (not (= ~systemActive~0 (_ bv0 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 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse2 .cse3))) [2021-10-24 10:46:46,843 INFO L853 garLoopResultBuilder]: At program point L101-2(lines 96 104) 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 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 (not (bvslt ~waterLevel~0 (_ bv2 32))) .cse1 .cse2 (not (= ~systemActive~0 (_ bv0 32)))) (and .cse0 (= ~methaneLevelCritical~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32)) .cse3))) [2021-10-24 10:46:46,843 INFO L853 garLoopResultBuilder]: At program point L101-3(lines 96 104) the Hoare annotation is: false [2021-10-24 10:46:46,856 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 10:46:46,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:46:46 BoogieIcfgContainer [2021-10-24 10:46:46,939 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 10:46:46,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 10:46:46,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 10:46:46,940 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 10:46:46,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:45:21" (3/4) ... [2021-10-24 10:46:46,945 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-24 10:46:46,980 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-24 10:46:46,982 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-24 10:46:46,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-24 10:46:46,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-24 10:46:46,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-24 10:46:46,988 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:46:46,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-24 10:46:47,034 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,035 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,040 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32))) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,041 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(waterLevel == 0bv32)) && !(systemActive == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) [2021-10-24 10:46:47,042 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,042 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0bv32 && 0bv32 == \result) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning [2021-10-24 10:46:47,049 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32) || ((((((splverifierCounter == 0bv32 && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32) [2021-10-24 10:46:47,051 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,054 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && \result == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,055 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) [2021-10-24 10:46:47,140 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/witness.graphml [2021-10-24 10:46:47,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 10:46:47,142 INFO L168 Benchmark]: Toolchain (without parser) took 89410.21 ms. Allocated memory was 50.3 MB in the beginning and 574.6 MB in the end (delta: 524.3 MB). Free memory was 26.6 MB in the beginning and 464.3 MB in the end (delta: -437.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,143 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 10:46:47,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 802.22 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 26.4 MB in the beginning and 39.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.54 ms. Allocated memory is still 69.2 MB. Free memory was 39.0 MB in the beginning and 35.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,144 INFO L168 Benchmark]: Boogie Preprocessor took 79.63 ms. Allocated memory is still 69.2 MB. Free memory was 35.1 MB in the beginning and 51.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,145 INFO L168 Benchmark]: RCFGBuilder took 2710.48 ms. Allocated memory is still 69.2 MB. Free memory was 51.1 MB in the beginning and 42.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,145 INFO L168 Benchmark]: TraceAbstraction took 85509.39 ms. Allocated memory was 69.2 MB in the beginning and 574.6 MB in the end (delta: 505.4 MB). Free memory was 42.1 MB in the beginning and 475.8 MB in the end (delta: -433.7 MB). Peak memory consumption was 366.0 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,146 INFO L168 Benchmark]: Witness Printer took 200.74 ms. Allocated memory is still 574.6 MB. Free memory was 475.8 MB in the beginning and 464.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 10:46:47,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 50.3 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 802.22 ms. Allocated memory was 50.3 MB in the beginning and 69.2 MB in the end (delta: 18.9 MB). Free memory was 26.4 MB in the beginning and 39.2 MB in the end (delta: -12.8 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.54 ms. Allocated memory is still 69.2 MB. Free memory was 39.0 MB in the beginning and 35.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.63 ms. Allocated memory is still 69.2 MB. Free memory was 35.1 MB in the beginning and 51.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2710.48 ms. Allocated memory is still 69.2 MB. Free memory was 51.1 MB in the beginning and 42.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 29.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 85509.39 ms. Allocated memory was 69.2 MB in the beginning and 574.6 MB in the end (delta: 505.4 MB). Free memory was 42.1 MB in the beginning and 475.8 MB in the end (delta: -433.7 MB). Peak memory consumption was 366.0 MB. Max. memory is 16.1 GB. * Witness Printer took 200.74 ms. Allocated memory is still 574.6 MB. Free memory was 475.8 MB in the beginning and 464.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 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: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 165]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 165]: 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, 141 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 85341.7ms, OverallIterations: 14, TraceHistogramMax: 3, EmptinessCheckTime: 56.5ms, AutomataDifference: 11059.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 56484.1ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1790 SDtfs, 2980 SDslu, 4400 SDs, 0 SdLazy, 483 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8503.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1812 GetRequests, 1720 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 961.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=12, InterpolantAutomatonStates: 88, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 684.2ms AutomataMinimizationTime, 14 MinimizatonAttempts, 4839 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 57 LocationsWithAnnotation, 57 PreInvPairs, 183 NumberOfFragments, 864 HoareAnnotationTreeSize, 57 FomulaSimplifications, 46853951 FormulaSimplificationTreeSizeReduction, 15506.5ms HoareSimplificationTime, 57 FomulaSimplificationsInter, 38408456 FormulaSimplificationTreeSizeReductionInter, 40947.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 450.5ms SsaConstructionTime, 2230.6ms SatisfiabilityAnalysisTime, 6548.6ms InterpolantComputationTime, 897 NumberOfCodeBlocks, 897 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1758 ConstructedInterpolants, 0 QuantifiedInterpolants, 3352 SizeOfPredicates, 40 NumberOfNonLiveVariables, 4303 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 36 InterpolantComputations, 27 PerfectInterpolantSequences, 636/684 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: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 945]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp == 0bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32) || ((((((splverifierCounter == 0bv32 && \result == 1bv32) && (\result == 0bv32 || !(waterLevel == 1bv32))) && tmp == 0bv32) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && tmp___0 == 1bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 945]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32))) || (((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && \result == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 182]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 331]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && !(systemActive == 0bv32)) || (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp == 0bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && tmp___0 == 0bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 299]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 989]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((methAndRunningLastTime == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 945]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && !(waterLevel == 0bv32)) && !(systemActive == 0bv32)) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(waterLevel == 0bv32)) && !(systemActive == 0bv32)) || ((((splverifierCounter == 0bv32 && \result == 0bv32) && !(waterLevel == 0bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 756]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32))) || ((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 0bv32) && 0bv32 == pumpRunning) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 1bv32) && !(systemActive == 0bv32))) || (((splverifierCounter == 0bv32 && methAndRunningLastTime == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && !(systemActive == 0bv32)) - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 870]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && methaneLevelCritical == 0bv32) && \result == 0bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && !~bvslt32(waterLevel, 2bv32)) && \result == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && !(systemActive == 0bv32)) && 0bv32 == pumpRunning) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0bv32 && 0bv32 == \result) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-24 10:46:47,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_686ad021-7d4b-4d88-97d3-aff7df316a21/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...