./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG --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 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 ............................................................................................................................................ 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_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG --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 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:03:31,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:03:31,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:03:31,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:03:31,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:03:31,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:03:31,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:03:31,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:03:31,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:03:31,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:03:31,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:03:31,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:03:31,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:03:31,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:03:31,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:03:31,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:03:31,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:03:31,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:03:31,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:03:31,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:03:31,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:03:31,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:03:31,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:03:31,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:03:31,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:03:31,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:03:31,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:03:31,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:03:31,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:03:31,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:03:31,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:03:31,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:03:31,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:03:31,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:03:31,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:03:31,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:03:31,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:03:31,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:03:31,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:03:31,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:03:31,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:03:31,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:03:31,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:03:31,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:03:31,464 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:03:31,464 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:03:31,464 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:03:31,465 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:03:31,465 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:03:31,465 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:03:31,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:03:31,471 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:03:31,473 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:03:31,473 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:03:31,473 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:03:31,473 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:03:31,474 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:03:31,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:03:31,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:03:31,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:03:31,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:03:31,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:03:31,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:03:31,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:03:31,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:03:31,476 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:03:31,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:03:31,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:03:31,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:03:31,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:03:31,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:03:31,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:03:31,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:31,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:03:31,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:03:31,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:03:31,480 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:03:31,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:03:31,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:03:31,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:03:31,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:03:31,481 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_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 [2021-10-29 05:03:31,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:03:31,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:03:31,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:03:31,770 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:03:31,771 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:03:31,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-29 05:03:31,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/18ec583c6/74ecb7b33e0848f7913396e19f53b5db/FLAG7bfad12c9 [2021-10-29 05:03:32,419 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:03:32,420 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-29 05:03:32,434 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/18ec583c6/74ecb7b33e0848f7913396e19f53b5db/FLAG7bfad12c9 [2021-10-29 05:03:32,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/18ec583c6/74ecb7b33e0848f7913396e19f53b5db [2021-10-29 05:03:32,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:03:32,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:03:32,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:32,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:03:32,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:03:32,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:32" (1/1) ... [2021-10-29 05:03:32,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d840be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:32, skipping insertion in model container [2021-10-29 05:03:32,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:32" (1/1) ... [2021-10-29 05:03:32,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:03:32,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:03:33,060 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_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2021-10-29 05:03:33,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:33,079 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) [2021-10-29 05:03:33,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@79b54b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:33, skipping insertion in model container [2021-10-29 05:03:33,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:33,081 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 05:03:33,083 INFO L168 Benchmark]: Toolchain (without parser) took 388.66 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 46.0 MB in the beginning and 82.5 MB in the end (delta: -36.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:33,084 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:03:33,085 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.14 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.9 MB in the beginning and 82.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:03:33,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 81.8 MB. Free memory was 53.6 MB in the beginning and 53.6 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 386.14 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.9 MB in the beginning and 82.5 MB in the end (delta: -36.6 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 531]: 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-b2eff8b [2021-10-29 05:03:35,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:03:35,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:03:35,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:03:35,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:03:35,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:03:35,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:03:35,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:03:35,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:03:35,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:03:35,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:03:35,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:03:35,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:03:35,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:03:35,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:03:35,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:03:35,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:03:35,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:03:35,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:03:35,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:03:35,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:03:35,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:03:35,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:03:35,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:03:35,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:03:35,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:03:35,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:03:35,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:03:35,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:03:35,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:03:35,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:03:35,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:03:35,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:03:35,410 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:03:35,411 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:03:35,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:03:35,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:03:35,425 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:03:35,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:03:35,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:03:35,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:03:35,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 05:03:35,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:03:35,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:03:35,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:03:35,473 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:03:35,473 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:03:35,473 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:03:35,473 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:03:35,473 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:03:35,474 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:03:35,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:03:35,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:03:35,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:03:35,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:03:35,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:03:35,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:03:35,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:03:35,477 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:03:35,477 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 05:03:35,478 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 05:03:35,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:03:35,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:03:35,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:03:35,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:03:35,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:03:35,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 05:03:35,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:03:35,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:35,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:03:35,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:03:35,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:03:35,481 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_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 837951bb35a66379a80a07f15314d2b43ee3f47728002b8b604897c09f36abe4 [2021-10-29 05:03:35,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:03:35,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:03:35,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:03:35,856 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:03:35,857 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:03:35,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-29 05:03:35,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/74a7b2754/40abf8023fe94a59b5374048c0dd7162/FLAGcda698c01 [2021-10-29 05:03:36,590 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:03:36,590 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c [2021-10-29 05:03:36,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/74a7b2754/40abf8023fe94a59b5374048c0dd7162/FLAGcda698c01 [2021-10-29 05:03:36,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/data/74a7b2754/40abf8023fe94a59b5374048c0dd7162 [2021-10-29 05:03:36,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:03:36,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:03:36,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:36,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:03:36,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:03:36,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:36" (1/1) ... [2021-10-29 05:03:36,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@726660b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:36, skipping insertion in model container [2021-10-29 05:03:36,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:03:36" (1/1) ... [2021-10-29 05:03:36,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:03:36,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:03:37,272 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_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2021-10-29 05:03:37,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:37,302 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 05:03:37,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:03:37,438 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_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2021-10-29 05:03:37,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:37,454 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:03:37,531 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_2a07c992-de46-4586-94a3-49fe3142d2fe/sv-benchmarks/c/product-lines/minepump_spec3_product49.cil.c[18588,18601] [2021-10-29 05:03:37,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:03:37,552 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:03:37,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37 WrapperNode [2021-10-29 05:03:37,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:03:37,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:37,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:03:37,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:03:37,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:03:37,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:03:37,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:03:37,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:03:37,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,704 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:03:37,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:03:37,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:03:37,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:03:37,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (1/1) ... [2021-10-29 05:03:37,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:03:37,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:03:37,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:03:37,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:03:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:03:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 05:03:37,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:03:37,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:03:40,280 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:03:40,281 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-29 05:03:40,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:40 BoogieIcfgContainer [2021-10-29 05:03:40,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:03:40,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:03:40,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:03:40,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:03:40,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:03:36" (1/3) ... [2021-10-29 05:03:40,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf70fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:40, skipping insertion in model container [2021-10-29 05:03:40,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:03:37" (2/3) ... [2021-10-29 05:03:40,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf70fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:03:40, skipping insertion in model container [2021-10-29 05:03:40,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:40" (3/3) ... [2021-10-29 05:03:40,291 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product49.cil.c [2021-10-29 05:03:40,296 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:03:40,296 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 05:03:40,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:03:40,370 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 [2021-10-29 05:03:40,370 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 05:03:40,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 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) [2021-10-29 05:03:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 05:03:40,417 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:40,418 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:40,419 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:40,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:40,425 INFO L85 PathProgramCache]: Analyzing trace with hash 641779472, now seen corresponding path program 1 times [2021-10-29 05:03:40,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:40,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029207958] [2021-10-29 05:03:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:40,443 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:40,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:40,446 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:40,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 05:03:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:40,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 05:03:40,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:40,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:40,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:40,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:40,864 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:40,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029207958] [2021-10-29 05:03:40,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029207958] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:40,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:40,866 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 05:03:40,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10607330] [2021-10-29 05:03:40,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 05:03:40,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:40,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 05:03:40,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:03:40,892 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5630252100840336) internal successors, (186), 122 states have internal predecessors, (186), 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) [2021-10-29 05:03:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:40,948 INFO L93 Difference]: Finished difference Result 240 states and 365 transitions. [2021-10-29 05:03:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 05:03:40,949 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 [2021-10-29 05:03:40,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:40,964 INFO L225 Difference]: With dead ends: 240 [2021-10-29 05:03:40,964 INFO L226 Difference]: Without dead ends: 119 [2021-10-29 05:03:40,968 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 05:03:40,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-29 05:03:41,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-29 05:03:41,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5) internal successors, (174), 118 states have internal predecessors, (174), 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) [2021-10-29 05:03:41,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 174 transitions. [2021-10-29 05:03:41,013 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 174 transitions. Word has length 18 [2021-10-29 05:03:41,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:41,013 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 174 transitions. [2021-10-29 05:03:41,014 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) [2021-10-29 05:03:41,014 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 174 transitions. [2021-10-29 05:03:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 05:03:41,016 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:41,016 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:41,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:41,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:41,231 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:41,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1103918604, now seen corresponding path program 1 times [2021-10-29 05:03:41,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:41,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868879751] [2021-10-29 05:03:41,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:41,233 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:41,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:41,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 05:03:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:41,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:03:41,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:41,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:41,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:41,591 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:41,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868879751] [2021-10-29 05:03:41,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868879751] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:41,593 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:41,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 05:03:41,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268837842] [2021-10-29 05:03:41,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:03:41,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:41,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:03:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:03:41,600 INFO L87 Difference]: Start difference. First operand 119 states and 174 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) [2021-10-29 05:03:41,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:41,617 INFO L93 Difference]: Finished difference Result 119 states and 174 transitions. [2021-10-29 05:03:41,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:03:41,618 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 [2021-10-29 05:03:41,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:41,619 INFO L225 Difference]: With dead ends: 119 [2021-10-29 05:03:41,619 INFO L226 Difference]: Without dead ends: 49 [2021-10-29 05:03:41,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:03:41,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-29 05:03:41,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-29 05:03:41,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4791666666666667) internal successors, (71), 48 states have internal predecessors, (71), 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) [2021-10-29 05:03:41,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2021-10-29 05:03:41,626 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 19 [2021-10-29 05:03:41,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:41,627 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2021-10-29 05:03:41,627 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) [2021-10-29 05:03:41,627 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2021-10-29 05:03:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 05:03:41,628 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:41,629 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:41,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:41,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:41,841 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:41,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:41,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1148023213, now seen corresponding path program 1 times [2021-10-29 05:03:41,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:41,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140559646] [2021-10-29 05:03:41,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:41,849 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:41,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:41,855 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:41,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 05:03:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:42,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:03:42,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:42,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:42,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:42,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:42,257 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:42,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140559646] [2021-10-29 05:03:42,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140559646] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:42,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:42,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 05:03:42,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002991249] [2021-10-29 05:03:42,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:03:42,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:42,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:03:42,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:03:42,260 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-29 05:03:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:42,275 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2021-10-29 05:03:42,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:03:42,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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 [2021-10-29 05:03:42,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:42,284 INFO L225 Difference]: With dead ends: 92 [2021-10-29 05:03:42,284 INFO L226 Difference]: Without dead ends: 49 [2021-10-29 05:03:42,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:03:42,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-29 05:03:42,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-10-29 05:03:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.4583333333333333) internal successors, (70), 48 states have internal predecessors, (70), 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) [2021-10-29 05:03:42,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 70 transitions. [2021-10-29 05:03:42,291 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 70 transitions. Word has length 24 [2021-10-29 05:03:42,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:42,292 INFO L470 AbstractCegarLoop]: Abstraction has 49 states and 70 transitions. [2021-10-29 05:03:42,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 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) [2021-10-29 05:03:42,292 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 70 transitions. [2021-10-29 05:03:42,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 05:03:42,293 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:42,293 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:42,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:42,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:42,506 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:42,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash -43063729, now seen corresponding path program 1 times [2021-10-29 05:03:42,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:42,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385466015] [2021-10-29 05:03:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:42,508 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:42,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:42,509 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:42,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 05:03:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:42,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 05:03:42,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:42,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:42,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:42,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:42,900 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:42,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385466015] [2021-10-29 05:03:42,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385466015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:42,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:42,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 05:03:42,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448083722] [2021-10-29 05:03:42,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:03:42,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:42,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:03:42,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:03:42,902 INFO L87 Difference]: Start difference. First operand 49 states and 70 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) [2021-10-29 05:03:42,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:42,973 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2021-10-29 05:03:42,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:03:42,973 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 [2021-10-29 05:03:42,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:42,974 INFO L225 Difference]: With dead ends: 115 [2021-10-29 05:03:42,975 INFO L226 Difference]: Without dead ends: 72 [2021-10-29 05:03:42,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:03:42,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-10-29 05:03:42,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2021-10-29 05:03:42,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.434782608695652) internal successors, (99), 69 states have internal predecessors, (99), 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) [2021-10-29 05:03:42,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 99 transitions. [2021-10-29 05:03:42,985 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 99 transitions. Word has length 26 [2021-10-29 05:03:42,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:42,985 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 99 transitions. [2021-10-29 05:03:42,985 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) [2021-10-29 05:03:42,985 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 99 transitions. [2021-10-29 05:03:42,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:03:42,991 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:42,991 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:43,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:43,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:43,212 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash -743213728, now seen corresponding path program 1 times [2021-10-29 05:03:43,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:43,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083124458] [2021-10-29 05:03:43,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:43,214 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:43,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:43,215 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:43,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 05:03:43,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:43,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:43,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:43,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:43,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:43,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:43,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083124458] [2021-10-29 05:03:43,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083124458] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:43,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:43,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:03:43,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007885015] [2021-10-29 05:03:43,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:03:43,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:43,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:03:43,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:03:43,649 INFO L87 Difference]: Start difference. First operand 70 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:43,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:43,725 INFO L93 Difference]: Finished difference Result 187 states and 263 transitions. [2021-10-29 05:03:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:03:43,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-29 05:03:43,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:43,735 INFO L225 Difference]: With dead ends: 187 [2021-10-29 05:03:43,735 INFO L226 Difference]: Without dead ends: 123 [2021-10-29 05:03:43,737 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:03:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-29 05:03:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 76. [2021-10-29 05:03:43,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.4) internal successors, (105), 75 states have internal predecessors, (105), 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) [2021-10-29 05:03:43,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 105 transitions. [2021-10-29 05:03:43,760 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 105 transitions. Word has length 32 [2021-10-29 05:03:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:43,761 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 105 transitions. [2021-10-29 05:03:43,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 105 transitions. [2021-10-29 05:03:43,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-29 05:03:43,763 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:43,763 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:43,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:43,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:43,976 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:43,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:43,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1870609821, now seen corresponding path program 1 times [2021-10-29 05:03:43,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:43,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1843286229] [2021-10-29 05:03:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:43,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:43,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:43,979 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:43,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 05:03:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:44,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:44,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:44,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:44,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:44,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:44,484 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:44,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1843286229] [2021-10-29 05:03:44,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1843286229] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:44,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:44,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 05:03:44,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827141365] [2021-10-29 05:03:44,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:03:44,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:44,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:03:44,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:03:44,486 INFO L87 Difference]: Start difference. First operand 76 states and 105 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-10-29 05:03:44,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:44,908 INFO L93 Difference]: Finished difference Result 841 states and 1196 transitions. [2021-10-29 05:03:44,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 05:03:44,909 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-10-29 05:03:44,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:44,914 INFO L225 Difference]: With dead ends: 841 [2021-10-29 05:03:44,914 INFO L226 Difference]: Without dead ends: 771 [2021-10-29 05:03:44,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-29 05:03:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-10-29 05:03:44,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 186. [2021-10-29 05:03:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.3783783783783783) internal successors, (255), 185 states have internal predecessors, (255), 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) [2021-10-29 05:03:44,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 255 transitions. [2021-10-29 05:03:44,947 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 255 transitions. Word has length 32 [2021-10-29 05:03:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:44,948 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 255 transitions. [2021-10-29 05:03:44,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2021-10-29 05:03:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2021-10-29 05:03:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:03:44,950 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:44,950 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:44,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:45,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:45,162 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:45,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:45,163 INFO L85 PathProgramCache]: Analyzing trace with hash 342193695, now seen corresponding path program 1 times [2021-10-29 05:03:45,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:45,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961778190] [2021-10-29 05:03:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:45,164 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:45,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:45,166 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:45,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-29 05:03:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:45,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:03:45,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:45,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:45,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:45,576 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:45,576 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961778190] [2021-10-29 05:03:45,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961778190] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:45,577 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:45,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:03:45,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501463450] [2021-10-29 05:03:45,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:03:45,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:45,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:03:45,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:03:45,580 INFO L87 Difference]: Start difference. First operand 186 states and 255 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:45,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:45,662 INFO L93 Difference]: Finished difference Result 470 states and 656 transitions. [2021-10-29 05:03:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:03:45,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:03:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:45,667 INFO L225 Difference]: With dead ends: 470 [2021-10-29 05:03:45,667 INFO L226 Difference]: Without dead ends: 337 [2021-10-29 05:03:45,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:03:45,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-10-29 05:03:45,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 184. [2021-10-29 05:03:45,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.3715846994535519) internal successors, (251), 183 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) [2021-10-29 05:03:45,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2021-10-29 05:03:45,703 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 33 [2021-10-29 05:03:45,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:45,704 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2021-10-29 05:03:45,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:45,704 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2021-10-29 05:03:45,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:03:45,710 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:45,710 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:45,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:45,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:45,924 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:45,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:45,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1727755226, now seen corresponding path program 1 times [2021-10-29 05:03:45,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:45,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609589039] [2021-10-29 05:03:45,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:45,925 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:45,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:45,926 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:45,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-29 05:03:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:46,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:46,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:46,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:46,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:46,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:46,391 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:46,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609589039] [2021-10-29 05:03:46,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609589039] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:46,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:46,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:03:46,392 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432301611] [2021-10-29 05:03:46,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:03:46,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:03:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:03:46,394 INFO L87 Difference]: Start difference. First operand 184 states and 251 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:47,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:47,852 INFO L93 Difference]: Finished difference Result 519 states and 720 transitions. [2021-10-29 05:03:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-29 05:03:47,852 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:03:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:47,855 INFO L225 Difference]: With dead ends: 519 [2021-10-29 05:03:47,855 INFO L226 Difference]: Without dead ends: 341 [2021-10-29 05:03:47,856 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:03:47,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-10-29 05:03:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 155. [2021-10-29 05:03:47,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3181818181818181) internal successors, (203), 154 states have internal predecessors, (203), 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) [2021-10-29 05:03:47,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2021-10-29 05:03:47,876 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 33 [2021-10-29 05:03:47,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:47,877 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2021-10-29 05:03:47,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:47,877 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2021-10-29 05:03:47,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 05:03:47,878 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:47,878 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:47,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:48,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:48,095 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:48,095 INFO L85 PathProgramCache]: Analyzing trace with hash 600359133, now seen corresponding path program 1 times [2021-10-29 05:03:48,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:48,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1302018302] [2021-10-29 05:03:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:48,096 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:48,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:48,097 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:48,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-29 05:03:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:48,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:48,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:48,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:48,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:48,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:48,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:48,561 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1302018302] [2021-10-29 05:03:48,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1302018302] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:48,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:48,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:03:48,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321291693] [2021-10-29 05:03:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:03:48,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:03:48,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:03:48,563 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2021-10-29 05:03:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:48,645 INFO L93 Difference]: Finished difference Result 415 states and 551 transitions. [2021-10-29 05:03:48,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:03:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-29 05:03:48,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:48,649 INFO L225 Difference]: With dead ends: 415 [2021-10-29 05:03:48,649 INFO L226 Difference]: Without dead ends: 266 [2021-10-29 05:03:48,650 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:03:48,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-29 05:03:48,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 155. [2021-10-29 05:03:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2987012987012987) internal successors, (200), 154 states have internal predecessors, (200), 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) [2021-10-29 05:03:48,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2021-10-29 05:03:48,672 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 33 [2021-10-29 05:03:48,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:48,672 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2021-10-29 05:03:48,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 8 states have internal predecessors, (37), 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) [2021-10-29 05:03:48,673 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2021-10-29 05:03:48,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-29 05:03:48,674 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:48,675 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:48,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:48,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:48,894 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:48,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:48,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1913049859, now seen corresponding path program 1 times [2021-10-29 05:03:48,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:48,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [75767570] [2021-10-29 05:03:48,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:48,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:48,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:48,897 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:48,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-29 05:03:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:49,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-29 05:03:49,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:49,352 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 05:03:49,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-29 05:03:49,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:49,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [75767570] [2021-10-29 05:03:49,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [75767570] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:49,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:49,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 05:03:49,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669253410] [2021-10-29 05:03:49,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:03:49,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:49,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:03:49,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:03:49,543 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-10-29 05:03:52,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:52,356 INFO L93 Difference]: Finished difference Result 519 states and 694 transitions. [2021-10-29 05:03:52,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 05:03:52,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-29 05:03:52,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:52,360 INFO L225 Difference]: With dead ends: 519 [2021-10-29 05:03:52,360 INFO L226 Difference]: Without dead ends: 417 [2021-10-29 05:03:52,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:03:52,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-10-29 05:03:52,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 351. [2021-10-29 05:03:52,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.3114285714285714) internal successors, (459), 350 states have internal predecessors, (459), 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) [2021-10-29 05:03:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 459 transitions. [2021-10-29 05:03:52,432 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 459 transitions. Word has length 53 [2021-10-29 05:03:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:52,433 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 459 transitions. [2021-10-29 05:03:52,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-10-29 05:03:52,433 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 459 transitions. [2021-10-29 05:03:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-29 05:03:52,434 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:52,434 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:03:52,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:52,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:52,647 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:52,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:52,647 INFO L85 PathProgramCache]: Analyzing trace with hash -330933439, now seen corresponding path program 1 times [2021-10-29 05:03:52,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:52,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1893464824] [2021-10-29 05:03:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:52,648 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:52,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:52,649 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:52,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-29 05:03:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:52,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:52,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:53,121 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:53,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:53,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:03:53,283 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:53,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1893464824] [2021-10-29 05:03:53,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1893464824] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:53,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:03:53,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-29 05:03:53,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698661958] [2021-10-29 05:03:53,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:03:53,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:03:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-29 05:03:53,285 INFO L87 Difference]: Start difference. First operand 351 states and 459 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-10-29 05:03:53,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:53,591 INFO L93 Difference]: Finished difference Result 1844 states and 2379 transitions. [2021-10-29 05:03:53,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 05:03:53,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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 53 [2021-10-29 05:03:53,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:53,600 INFO L225 Difference]: With dead ends: 1844 [2021-10-29 05:03:53,600 INFO L226 Difference]: Without dead ends: 1499 [2021-10-29 05:03:53,601 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 05:03:53,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-10-29 05:03:53,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 694. [2021-10-29 05:03:53,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 693 states have (on average 1.274170274170274) internal successors, (883), 693 states have internal predecessors, (883), 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) [2021-10-29 05:03:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 883 transitions. [2021-10-29 05:03:53,707 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 883 transitions. Word has length 53 [2021-10-29 05:03:53,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:53,707 INFO L470 AbstractCegarLoop]: Abstraction has 694 states and 883 transitions. [2021-10-29 05:03:53,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 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) [2021-10-29 05:03:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 883 transitions. [2021-10-29 05:03:53,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 05:03:53,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:53,708 INFO L513 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] [2021-10-29 05:03:53,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:53,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:53,922 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:53,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:53,922 INFO L85 PathProgramCache]: Analyzing trace with hash -454216901, now seen corresponding path program 1 times [2021-10-29 05:03:53,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:53,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960088051] [2021-10-29 05:03:53,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:53,923 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:53,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:53,924 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:53,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-29 05:03:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:54,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:03:54,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:54,487 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:03:54,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:54,713 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 05:03:54,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:54,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960088051] [2021-10-29 05:03:54,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960088051] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:03:54,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1107935962] [2021-10-29 05:03:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:54,714 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:03:54,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:03:54,716 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:03:54,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-29 05:03:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:55,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:55,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:55,292 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-29 05:03:55,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:55,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-29 05:03:55,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1107935962] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:03:55,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-29 05:03:55,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5, 5] total 11 [2021-10-29 05:03:55,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134933755] [2021-10-29 05:03:55,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 05:03:55,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:55,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 05:03:55,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:03:55,426 INFO L87 Difference]: Start difference. First operand 694 states and 883 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:55,627 INFO L93 Difference]: Finished difference Result 1588 states and 2039 transitions. [2021-10-29 05:03:55,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:03:55,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-29 05:03:55,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:55,633 INFO L225 Difference]: With dead ends: 1588 [2021-10-29 05:03:55,633 INFO L226 Difference]: Without dead ends: 990 [2021-10-29 05:03:55,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-10-29 05:03:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2021-10-29 05:03:55,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 718. [2021-10-29 05:03:55,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 717 states have (on average 1.2649930264993026) internal successors, (907), 717 states have internal predecessors, (907), 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) [2021-10-29 05:03:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 907 transitions. [2021-10-29 05:03:55,751 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 907 transitions. Word has length 54 [2021-10-29 05:03:55,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:03:55,752 INFO L470 AbstractCegarLoop]: Abstraction has 718 states and 907 transitions. [2021-10-29 05:03:55,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:03:55,752 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 907 transitions. [2021-10-29 05:03:55,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-29 05:03:55,753 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:03:55,753 INFO L513 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] [2021-10-29 05:03:55,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-29 05:03:55,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-29 05:03:56,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:03:56,165 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:03:56,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:03:56,165 INFO L85 PathProgramCache]: Analyzing trace with hash -196051463, now seen corresponding path program 1 times [2021-10-29 05:03:56,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:03:56,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385535713] [2021-10-29 05:03:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:56,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:03:56,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:03:56,167 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:03:56,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-10-29 05:03:56,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:56,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:56,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:56,734 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:56,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:56,916 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:03:56,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385535713] [2021-10-29 05:03:56,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385535713] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:03:56,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [909260402] [2021-10-29 05:03:56,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:56,916 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:03:56,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:03:56,920 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:03:56,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2021-10-29 05:03:57,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:57,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:03:57,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:57,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:57,797 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:57,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [909260402] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:03:57,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867425455] [2021-10-29 05:03:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:03:57,798 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:03:57,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:03:57,799 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:03:57,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-29 05:03:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:03:58,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:03:58,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:03:58,341 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:58,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:03:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:03:58,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867425455] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:03:58,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:03:58,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 8 [2021-10-29 05:03:58,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247057538] [2021-10-29 05:03:58,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:03:58,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:03:58,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:03:58,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:03:58,490 INFO L87 Difference]: Start difference. First operand 718 states and 907 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2021-10-29 05:03:59,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:03:59,911 INFO L93 Difference]: Finished difference Result 1758 states and 2207 transitions. [2021-10-29 05:03:59,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 05:03:59,912 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-10-29 05:03:59,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:03:59,918 INFO L225 Difference]: With dead ends: 1758 [2021-10-29 05:03:59,918 INFO L226 Difference]: Without dead ends: 1046 [2021-10-29 05:03:59,919 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-29 05:03:59,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-10-29 05:04:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 633. [2021-10-29 05:04:00,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 632 states have (on average 1.231012658227848) internal successors, (778), 632 states have internal predecessors, (778), 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) [2021-10-29 05:04:00,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 778 transitions. [2021-10-29 05:04:00,025 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 778 transitions. Word has length 54 [2021-10-29 05:04:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:00,025 INFO L470 AbstractCegarLoop]: Abstraction has 633 states and 778 transitions. [2021-10-29 05:04:00,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 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) [2021-10-29 05:04:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 778 transitions. [2021-10-29 05:04:00,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 05:04:00,027 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:00,027 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:00,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:00,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:00,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:00,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:00,641 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:00,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:00,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1751298828, now seen corresponding path program 1 times [2021-10-29 05:04:00,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:00,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102931132] [2021-10-29 05:04:00,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:00,642 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:00,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:00,643 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:00,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-10-29 05:04:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:01,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-29 05:04:01,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:01,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:01,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:04:01,402 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:01,402 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102931132] [2021-10-29 05:04:01,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102931132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:01,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:01,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-10-29 05:04:01,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14051020] [2021-10-29 05:04:01,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:04:01,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:01,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:04:01,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:04:01,404 INFO L87 Difference]: Start difference. First operand 633 states and 778 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:03,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:03,375 INFO L93 Difference]: Finished difference Result 2455 states and 3007 transitions. [2021-10-29 05:04:03,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-29 05:04:03,375 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-29 05:04:03,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:03,385 INFO L225 Difference]: With dead ends: 2455 [2021-10-29 05:04:03,386 INFO L226 Difference]: Without dead ends: 1914 [2021-10-29 05:04:03,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2021-10-29 05:04:03,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-10-29 05:04:03,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 811. [2021-10-29 05:04:03,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 811 states, 810 states have (on average 1.2209876543209877) internal successors, (989), 810 states have internal predecessors, (989), 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) [2021-10-29 05:04:03,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 989 transitions. [2021-10-29 05:04:03,524 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 989 transitions. Word has length 55 [2021-10-29 05:04:03,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:03,524 INFO L470 AbstractCegarLoop]: Abstraction has 811 states and 989 transitions. [2021-10-29 05:04:03,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:04:03,525 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 989 transitions. [2021-10-29 05:04:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-10-29 05:04:03,526 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:03,526 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:03,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:03,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:04:03,741 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash -632394713, now seen corresponding path program 1 times [2021-10-29 05:04:03,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:03,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [145321679] [2021-10-29 05:04:03,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:03,742 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:03,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:03,743 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:03,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-10-29 05:04:04,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:04,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:04:04,294 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:04,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:04,701 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:04,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [145321679] [2021-10-29 05:04:04,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [145321679] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:04,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1742119125] [2021-10-29 05:04:04,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:04,701 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:04:04,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:04:04,702 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:04:04,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-10-29 05:04:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:05,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:04:05,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:05,460 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:05,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:05,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1742119125] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:05,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069074777] [2021-10-29 05:04:05,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:05,643 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:05,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:05,643 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:04:05,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-29 05:04:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:06,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:04:06,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:06,331 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:06,331 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:06,521 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-29 05:04:06,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069074777] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:06,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-29 05:04:06,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 9 [2021-10-29 05:04:06,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622478712] [2021-10-29 05:04:06,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 05:04:06,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:06,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 05:04:06,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:04:06,524 INFO L87 Difference]: Start difference. First operand 811 states and 989 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 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) [2021-10-29 05:04:08,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:08,948 INFO L93 Difference]: Finished difference Result 5152 states and 6370 transitions. [2021-10-29 05:04:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-29 05:04:08,949 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-10-29 05:04:08,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:08,972 INFO L225 Difference]: With dead ends: 5152 [2021-10-29 05:04:08,972 INFO L226 Difference]: Without dead ends: 4433 [2021-10-29 05:04:08,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=202, Invalid=610, Unknown=0, NotChecked=0, Total=812 [2021-10-29 05:04:09,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-10-29 05:04:09,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 986. [2021-10-29 05:04:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 985 states have (on average 1.233502538071066) internal successors, (1215), 985 states have internal predecessors, (1215), 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) [2021-10-29 05:04:09,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1215 transitions. [2021-10-29 05:04:09,213 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1215 transitions. Word has length 55 [2021-10-29 05:04:09,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:09,214 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1215 transitions. [2021-10-29 05:04:09,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 9 states have internal predecessors, (99), 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) [2021-10-29 05:04:09,214 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1215 transitions. [2021-10-29 05:04:09,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-10-29 05:04:09,217 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:09,217 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-29 05:04:09,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:09,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:09,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:09,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:09,829 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:09,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:09,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1423760697, now seen corresponding path program 1 times [2021-10-29 05:04:09,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:09,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135972014] [2021-10-29 05:04:09,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:09,830 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:09,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:09,832 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:09,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-10-29 05:04:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:10,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-29 05:04:10,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:10,624 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-29 05:04:10,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:10,836 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-29 05:04:10,836 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:10,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135972014] [2021-10-29 05:04:10,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135972014] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:10,837 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:10,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-29 05:04:10,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353016587] [2021-10-29 05:04:10,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 05:04:10,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:10,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 05:04:10,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-29 05:04:10,839 INFO L87 Difference]: Start difference. First operand 986 states and 1215 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-10-29 05:04:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:11,055 INFO L93 Difference]: Finished difference Result 2102 states and 2600 transitions. [2021-10-29 05:04:11,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:04:11,056 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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 96 [2021-10-29 05:04:11,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:11,062 INFO L225 Difference]: With dead ends: 2102 [2021-10-29 05:04:11,062 INFO L226 Difference]: Without dead ends: 1122 [2021-10-29 05:04:11,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-29 05:04:11,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2021-10-29 05:04:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 936. [2021-10-29 05:04:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 936 states, 935 states have (on average 1.2310160427807486) internal successors, (1151), 935 states have internal predecessors, (1151), 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) [2021-10-29 05:04:11,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 936 states to 936 states and 1151 transitions. [2021-10-29 05:04:11,236 INFO L78 Accepts]: Start accepts. Automaton has 936 states and 1151 transitions. Word has length 96 [2021-10-29 05:04:11,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:11,237 INFO L470 AbstractCegarLoop]: Abstraction has 936 states and 1151 transitions. [2021-10-29 05:04:11,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 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) [2021-10-29 05:04:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 936 states and 1151 transitions. [2021-10-29 05:04:11,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-29 05:04:11,239 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:11,240 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-10-29 05:04:11,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:11,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:04:11,453 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:11,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:11,454 INFO L85 PathProgramCache]: Analyzing trace with hash 2011476516, now seen corresponding path program 1 times [2021-10-29 05:04:11,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:11,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776101853] [2021-10-29 05:04:11,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:11,455 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:11,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:11,456 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:11,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2021-10-29 05:04:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:12,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 05:04:12,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:12,343 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-29 05:04:12,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:12,679 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 88 proven. 6 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-29 05:04:12,679 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:12,679 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776101853] [2021-10-29 05:04:12,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776101853] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:12,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [934308705] [2021-10-29 05:04:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:12,680 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-29 05:04:12,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 [2021-10-29 05:04:12,682 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-29 05:04:12,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2021-10-29 05:04:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:13,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-29 05:04:13,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:13,883 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-29 05:04:13,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:14,322 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-29 05:04:14,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [934308705] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-29 05:04:14,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400042741] [2021-10-29 05:04:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:04:14,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:14,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:04:14,324 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:04:14,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-29 05:04:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:04:15,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 05:04:15,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:15,467 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-29 05:04:15,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:15,766 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-10-29 05:04:15,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400042741] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-29 05:04:15,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 5 imperfect interpolant sequences. [2021-10-29 05:04:15,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [5, 5, 8, 8, 8] total 24 [2021-10-29 05:04:15,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301342961] [2021-10-29 05:04:15,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:04:15,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:15,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:04:15,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2021-10-29 05:04:15,769 INFO L87 Difference]: Start difference. First operand 936 states and 1151 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2021-10-29 05:04:19,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:19,408 INFO L93 Difference]: Finished difference Result 2941 states and 3657 transitions. [2021-10-29 05:04:19,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-29 05:04:19,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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 118 [2021-10-29 05:04:19,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:19,420 INFO L225 Difference]: With dead ends: 2941 [2021-10-29 05:04:19,421 INFO L226 Difference]: Without dead ends: 2011 [2021-10-29 05:04:19,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=1044, Unknown=0, NotChecked=0, Total=1260 [2021-10-29 05:04:19,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2021-10-29 05:04:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1127. [2021-10-29 05:04:19,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 1126 states have (on average 1.2344582593250444) internal successors, (1390), 1126 states have internal predecessors, (1390), 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) [2021-10-29 05:04:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1390 transitions. [2021-10-29 05:04:19,643 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1390 transitions. Word has length 118 [2021-10-29 05:04:19,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:19,643 INFO L470 AbstractCegarLoop]: Abstraction has 1127 states and 1390 transitions. [2021-10-29 05:04:19,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 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) [2021-10-29 05:04:19,644 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1390 transitions. [2021-10-29 05:04:19,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-10-29 05:04:19,647 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:04:19,647 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-10-29 05:04:19,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:19,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:20,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:20,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:04:20,262 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:04:20,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:04:20,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1985123616, now seen corresponding path program 2 times [2021-10-29 05:04:20,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 05:04:20,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2112915939] [2021-10-29 05:04:20,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-29 05:04:20,264 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 05:04:20,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 05:04:20,265 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 05:04:20,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2021-10-29 05:04:22,148 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-29 05:04:22,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-29 05:04:22,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 05:04:22,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 05:04:22,444 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-29 05:04:22,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 05:04:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-10-29 05:04:22,719 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 05:04:22,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2112915939] [2021-10-29 05:04:22,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2112915939] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 05:04:22,719 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:04:22,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 05:04:22,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090204262] [2021-10-29 05:04:22,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 05:04:22,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 05:04:22,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 05:04:22,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 05:04:22,722 INFO L87 Difference]: Start difference. First operand 1127 states and 1390 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2021-10-29 05:04:22,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:04:22,810 INFO L93 Difference]: Finished difference Result 1431 states and 1754 transitions. [2021-10-29 05:04:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 05:04:22,811 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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 118 [2021-10-29 05:04:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:04:22,811 INFO L225 Difference]: With dead ends: 1431 [2021-10-29 05:04:22,811 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 05:04:22,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-29 05:04:22,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 05:04:22,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 05:04:22,814 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) [2021-10-29 05:04:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 05:04:22,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 118 [2021-10-29 05:04:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:04:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 05:04:22,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2021-10-29 05:04:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 05:04:22,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 05:04:22,817 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:22,818 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:22,818 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:04:22,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2021-10-29 05:04:23,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 05:04:23,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 05:04:23,043 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,077 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,345 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,347 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,351 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:23,682 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:24,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,394 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:25,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,187 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,235 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,938 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,939 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:26,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 05:04:36,065 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 67 86) the Hoare annotation is: false [2021-10-29 05:04:36,065 INFO L860 garLoopResultBuilder]: At program point L960(lines 941 963) the Hoare annotation is: true [2021-10-29 05:04:36,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,066 INFO L853 garLoopResultBuilder]: At program point L498(lines 493 501) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:04:36,066 INFO L853 garLoopResultBuilder]: At program point L234(lines 219 237) the Hoare annotation is: false [2021-10-29 05:04:36,066 INFO L853 garLoopResultBuilder]: At program point L234-1(lines 219 237) the Hoare annotation is: (let ((.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse10 (= ~waterLevel~0 (_ bv2 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse12 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse13 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse14 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv0 32))) (.cse3 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv1 32))) (.cse4 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv0 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse0 .cse10 .cse11 .cse4 .cse12 .cse7 .cse8 .cse13) (and .cse9 .cse0 .cse10 .cse14 .cse11 .cse4 .cse12 .cse8 .cse13) (and .cse0 .cse1 .cse14 .cse2 .cse3 .cse4 .cse5 .cse6 .cse8))) [2021-10-29 05:04:36,066 INFO L853 garLoopResultBuilder]: At program point L234-2(lines 219 237) the Hoare annotation is: false [2021-10-29 05:04:36,066 INFO L853 garLoopResultBuilder]: At program point L234-3(lines 219 237) the Hoare annotation is: false [2021-10-29 05:04:36,067 INFO L853 garLoopResultBuilder]: At program point L234-4(lines 219 237) the Hoare annotation is: false [2021-10-29 05:04:36,067 INFO L853 garLoopResultBuilder]: At program point L234-5(lines 219 237) the Hoare annotation is: false [2021-10-29 05:04:36,067 INFO L853 garLoopResultBuilder]: At program point L928(lines 924 930) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:04:36,067 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 312) no Hoare annotation was computed. [2021-10-29 05:04:36,067 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 372) no Hoare annotation was computed. [2021-10-29 05:04:36,067 INFO L857 garLoopResultBuilder]: For program point L368-3(lines 368 372) no Hoare annotation was computed. [2021-10-29 05:04:36,067 INFO L857 garLoopResultBuilder]: For program point L368-6(lines 368 372) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104-1(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104-2(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104-3(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104-4(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,068 INFO L857 garLoopResultBuilder]: For program point L104-5(lines 104 112) no Hoare annotation was computed. [2021-10-29 05:04:36,069 INFO L857 garLoopResultBuilder]: For program point L337(lines 337 357) no Hoare annotation was computed. [2021-10-29 05:04:36,069 INFO L857 garLoopResultBuilder]: For program point L337-2(lines 337 357) no Hoare annotation was computed. [2021-10-29 05:04:36,069 INFO L857 garLoopResultBuilder]: For program point L337-4(lines 337 357) no Hoare annotation was computed. [2021-10-29 05:04:36,069 INFO L853 garLoopResultBuilder]: At program point L437(lines 432 440) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32))) (.cse3 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse4 (= ~systemActive~0 (_ bv1 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv0 32) ~pumpRunning~0)) (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) .cse0 (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32)) .cse3 .cse4 (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))))) [2021-10-29 05:04:36,069 INFO L853 garLoopResultBuilder]: At program point L437-1(lines 432 440) the Hoare annotation is: false [2021-10-29 05:04:36,069 INFO L853 garLoopResultBuilder]: At program point L437-2(lines 432 440) the Hoare annotation is: false [2021-10-29 05:04:36,070 INFO L857 garLoopResultBuilder]: For program point L272(lines 271 316) no Hoare annotation was computed. [2021-10-29 05:04:36,070 INFO L853 garLoopResultBuilder]: At program point L405(lines 400 408) the Hoare annotation is: (let ((.cse6 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse7 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse11 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse12 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse5 .cse9 .cse6 .cse7 .cse10) (and .cse0 .cse1 .cse2 .cse3 .cse11 .cse4 .cse12 .cse5 .cse8) (and .cse1 .cse11 .cse12 .cse5 .cse9 .cse10))) [2021-10-29 05:04:36,070 INFO L853 garLoopResultBuilder]: At program point L405-1(lines 400 408) the Hoare annotation is: false [2021-10-29 05:04:36,070 INFO L853 garLoopResultBuilder]: At program point L405-2(lines 400 408) the Hoare annotation is: false [2021-10-29 05:04:36,070 INFO L857 garLoopResultBuilder]: For program point L273(lines 273 277) no Hoare annotation was computed. [2021-10-29 05:04:36,071 INFO L853 garLoopResultBuilder]: At program point L75(lines 75 81) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse6 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse7 (= (_ bv1 32) ~pumpRunning~0)) (.cse8 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse1 (= ~systemActive~0 (_ bv1 32))) (.cse3 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse2 .cse4) (and .cse6 .cse0 .cse7 .cse8 .cse5 .cse9 .cse1 .cse10) (and .cse6 .cse0 .cse7 .cse8 .cse9 .cse1 .cse3 .cse10))) [2021-10-29 05:04:36,071 INFO L853 garLoopResultBuilder]: At program point L75-1(lines 75 81) the Hoare annotation is: false [2021-10-29 05:04:36,071 INFO L853 garLoopResultBuilder]: At program point L75-2(lines 75 81) the Hoare annotation is: false [2021-10-29 05:04:36,071 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,071 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 311) no Hoare annotation was computed. [2021-10-29 05:04:36,071 INFO L857 garLoopResultBuilder]: For program point L307-2(lines 68 74) no Hoare annotation was computed. [2021-10-29 05:04:36,072 INFO L857 garLoopResultBuilder]: For program point L969(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,072 INFO L857 garLoopResultBuilder]: For program point L969-1(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,072 INFO L857 garLoopResultBuilder]: For program point L969-2(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,072 INFO L857 garLoopResultBuilder]: For program point L343(lines 343 356) no Hoare annotation was computed. [2021-10-29 05:04:36,072 INFO L853 garLoopResultBuilder]: At program point L343-1(lines 1 972) the Hoare annotation is: (let ((.cse4 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse9 (= ~waterLevel~0 (_ bv1 32))) (.cse12 (= (_ bv0 32) ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= ~waterLevel~0 (_ bv2 32))) (.cse8 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv1 32))) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse6 (= ~systemActive~0 (_ bv1 32))) (.cse10 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse11 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) .cse5 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse6 (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) .cse7) (and .cse1 .cse8 .cse6 .cse9 .cse10 .cse11 .cse12) (and .cse1 .cse4 .cse6 .cse9 .cse12) (and .cse0 .cse1 .cse2 .cse3 .cse8 .cse5 .cse6 .cse10 .cse11 .cse7))) [2021-10-29 05:04:36,072 INFO L857 garLoopResultBuilder]: For program point L343-2(lines 343 356) no Hoare annotation was computed. [2021-10-29 05:04:36,073 INFO L853 garLoopResultBuilder]: At program point L343-3(lines 1 972) the Hoare annotation is: false [2021-10-29 05:04:36,073 INFO L857 garLoopResultBuilder]: For program point L343-4(lines 343 356) no Hoare annotation was computed. [2021-10-29 05:04:36,073 INFO L853 garLoopResultBuilder]: At program point L343-5(lines 1 972) the Hoare annotation is: false [2021-10-29 05:04:36,073 INFO L853 garLoopResultBuilder]: At program point L179(lines 174 182) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32)) (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32)) (= (_ bv1 32) ~pumpRunning~0) (= ~waterLevel~0 (_ bv2 32)) (= ~methaneLevelCritical~0 (_ bv0 32)) (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32)) (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= (_ bv2 32) ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp___0~3) (= (_ bv2 32) |ULTIMATE.start_getWaterLevel_#res|) (= (_ bv1 32) |ULTIMATE.start_isPumpRunning_#res|) (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32))) [2021-10-29 05:04:36,073 INFO L853 garLoopResultBuilder]: At program point L179-1(lines 174 182) the Hoare annotation is: false [2021-10-29 05:04:36,074 INFO L853 garLoopResultBuilder]: At program point L179-2(lines 174 182) the Hoare annotation is: false [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445-1(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445-2(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445-3(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445-4(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,074 INFO L857 garLoopResultBuilder]: For program point L445-5(lines 445 451) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247-2(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247-3(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247-5(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247-6(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,075 INFO L857 garLoopResultBuilder]: For program point L247-8(lines 247 251) no Hoare annotation was computed. [2021-10-29 05:04:36,076 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 384) no Hoare annotation was computed. [2021-10-29 05:04:36,076 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2021-10-29 05:04:36,076 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 287) no Hoare annotation was computed. [2021-10-29 05:04:36,076 INFO L857 garLoopResultBuilder]: For program point L347-2(lines 347 353) no Hoare annotation was computed. [2021-10-29 05:04:36,076 INFO L853 garLoopResultBuilder]: At program point L281-1(lines 281 287) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv1 32))) (.cse7 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse8 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv1 32))) (.cse9 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse10 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse11 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse12 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse6 .cse7 .cse8 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse7 .cse8 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse9 .cse0 .cse10 .cse1 .cse5 .cse11 .cse3 .cse7 .cse8 .cse12) (and .cse9 .cse0 .cse10 .cse1 .cse2 (= ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~5 (_ bv0 32)) .cse11 (= |ULTIMATE.start_isMethaneLevelCritical_#res| (_ bv0 32)) .cse3 .cse12))) [2021-10-29 05:04:36,076 INFO L857 garLoopResultBuilder]: For program point L347-4(lines 347 353) no Hoare annotation was computed. [2021-10-29 05:04:36,077 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 05:04:36,077 INFO L853 garLoopResultBuilder]: At program point L317(lines 270 318) the Hoare annotation is: false [2021-10-29 05:04:36,077 INFO L853 garLoopResultBuilder]: At program point L450(lines 441 454) the Hoare annotation is: false [2021-10-29 05:04:36,077 INFO L853 garLoopResultBuilder]: At program point L450-1(lines 441 454) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterSensorDry_#res| (_ bv0 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse1 (= (_ bv1 32) |ULTIMATE.start_isHighWaterSensorDry_#res|)) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse4 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse5 (= (_ bv0 32) ~pumpRunning~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse6 .cse3 .cse7 .cse8 .cse5) (and .cse0 .cse6 .cse2 .cse3 .cse7 .cse5) (and .cse0 .cse1 .cse3 .cse4 .cse8 .cse5))) [2021-10-29 05:04:36,077 INFO L853 garLoopResultBuilder]: At program point L450-2(lines 441 454) the Hoare annotation is: false [2021-10-29 05:04:36,077 INFO L853 garLoopResultBuilder]: At program point L450-3(lines 441 454) the Hoare annotation is: false [2021-10-29 05:04:36,078 INFO L853 garLoopResultBuilder]: At program point L450-4(lines 441 454) the Hoare annotation is: false [2021-10-29 05:04:36,078 INFO L853 garLoopResultBuilder]: At program point L450-5(lines 441 454) the Hoare annotation is: false [2021-10-29 05:04:36,078 INFO L853 garLoopResultBuilder]: At program point L880-2(lines 880 894) the Hoare annotation is: false [2021-10-29 05:04:36,078 INFO L853 garLoopResultBuilder]: At program point L253(lines 238 256) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= |ULTIMATE.start_isLowWaterLevel_#res| (_ bv1 32))) (.cse7 (= ~waterLevel~0 (_ bv1 32))) (.cse8 (= ULTIMATE.start_isLowWaterLevel_~tmp~3 (_ bv0 32))) (.cse9 (= ULTIMATE.start_isLowWaterLevel_~tmp___0~1 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse10) (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10))) [2021-10-29 05:04:36,078 INFO L853 garLoopResultBuilder]: At program point L253-1(lines 238 256) the Hoare annotation is: false [2021-10-29 05:04:36,079 INFO L853 garLoopResultBuilder]: At program point L253-2(lines 238 256) the Hoare annotation is: false [2021-10-29 05:04:36,079 INFO L857 garLoopResultBuilder]: For program point L881(line 881) no Hoare annotation was computed. [2021-10-29 05:04:36,079 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 05:04:36,079 INFO L857 garLoopResultBuilder]: For program point L884(lines 884 888) no Hoare annotation was computed. [2021-10-29 05:04:36,079 INFO L857 garLoopResultBuilder]: For program point L884-1(lines 68 74) no Hoare annotation was computed. [2021-10-29 05:04:36,079 INFO L857 garLoopResultBuilder]: For program point L951(lines 951 958) no Hoare annotation was computed. [2021-10-29 05:04:36,079 INFO L860 garLoopResultBuilder]: At program point L951-1(lines 951 958) the Hoare annotation is: true [2021-10-29 05:04:36,080 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2021-10-29 05:04:36,080 INFO L853 garLoopResultBuilder]: At program point L291-1(lines 291 297) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse7 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse8 (= (_ bv1 32) ~pumpRunning~0)) (.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse5 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse10 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse5 .cse4) (and .cse0 .cse3 .cse6 .cse5 .cse4) (and .cse0 .cse2 .cse3 .cse6 .cse4) (and .cse7 .cse0 .cse8 .cse1 .cse2 .cse9 .cse3 .cse10) (and .cse7 .cse0 .cse8 .cse1 .cse9 .cse3 .cse5 .cse10))) [2021-10-29 05:04:36,080 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 143) no Hoare annotation was computed. [2021-10-29 05:04:36,080 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 126 143) no Hoare annotation was computed. [2021-10-29 05:04:36,080 INFO L857 garLoopResultBuilder]: For program point L126-2(lines 126 143) no Hoare annotation was computed. [2021-10-29 05:04:36,080 INFO L853 garLoopResultBuilder]: At program point L490(lines 1 972) the Hoare annotation is: (and (= ~methaneLevelCritical~0 (_ bv0 32)) (= ~systemActive~0 (_ bv1 32)) (= ~waterLevel~0 (_ bv1 32)) (= (_ bv0 32) ~pumpRunning~0)) [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point L392(lines 392 396) no Hoare annotation was computed. [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point L228-2(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point L228-3(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,081 INFO L857 garLoopResultBuilder]: For program point L228-5(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-6(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-8(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-9(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-11(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-12(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-14(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,082 INFO L857 garLoopResultBuilder]: For program point L228-15(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,083 INFO L857 garLoopResultBuilder]: For program point L228-17(lines 228 232) no Hoare annotation was computed. [2021-10-29 05:04:36,083 INFO L853 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse2 (= (_ bv1 32) ~pumpRunning~0)) (.cse3 (= |ULTIMATE.start_isLowWaterSensorDry_#res| (_ bv0 32))) (.cse4 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse5 (= ~systemActive~0 (_ bv1 32))) (.cse6 (= ~waterLevel~0 (_ bv1 32))) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 (= ~methaneLevelCritical~0 (_ bv0 32)) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (= ~methaneLevelCritical~0 (_ bv1 32)) .cse7))) [2021-10-29 05:04:36,083 INFO L853 garLoopResultBuilder]: At program point L460-1(lines 455 463) the Hoare annotation is: false [2021-10-29 05:04:36,083 INFO L853 garLoopResultBuilder]: At program point L460-2(lines 455 463) the Hoare annotation is: false [2021-10-29 05:04:36,083 INFO L857 garLoopResultBuilder]: For program point L130(lines 130 138) no Hoare annotation was computed. [2021-10-29 05:04:36,083 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 130 138) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point L130-2(lines 130 138) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 969) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point L100(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,084 INFO L857 garLoopResultBuilder]: For program point L100-2(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,085 INFO L857 garLoopResultBuilder]: For program point L100-3(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,085 INFO L857 garLoopResultBuilder]: For program point L100-4(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,085 INFO L857 garLoopResultBuilder]: For program point L100-5(lines 100 117) no Hoare annotation was computed. [2021-10-29 05:04:36,085 INFO L853 garLoopResultBuilder]: At program point L68(lines 67 86) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 (_ bv2 32))) (.cse2 (= ~methaneLevelCritical~0 (_ bv0 32))) (.cse4 (= (_ bv0 32) ~pumpRunning~0)) (.cse5 (= |ULTIMATE.start_isHighWaterLevel_#res| (_ bv1 32))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 (_ bv0 32))) (.cse6 (= (_ bv1 32) ~pumpRunning~0)) (.cse7 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~0 (_ bv1 32))) (.cse3 (= ~systemActive~0 (_ bv1 32))) (.cse8 (= ~waterLevel~0 (_ bv1 32))) (.cse10 (= ~methaneLevelCritical~0 (_ bv1 32))) (.cse9 (= ULTIMATE.start_isHighWaterLevel_~tmp~2 (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse6 .cse2 .cse7 .cse3 .cse8 .cse9) (and .cse0 .cse1 .cse3 .cse10 .cse4) (and .cse0 .cse3 .cse8 .cse10 .cse4) (and .cse0 .cse2 .cse3 .cse8 .cse4) (and .cse5 .cse0 .cse6 .cse7 .cse3 .cse8 .cse10 .cse9))) [2021-10-29 05:04:36,085 INFO L857 garLoopResultBuilder]: For program point L68-1(lines 68 74) no Hoare annotation was computed. [2021-10-29 05:04:36,085 INFO L853 garLoopResultBuilder]: At program point L68-2(lines 67 86) the Hoare annotation is: false [2021-10-29 05:04:36,089 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:04:36,090 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:04:36,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:04:36 BoogieIcfgContainer [2021-10-29 05:04:36,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:04:36,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:04:36,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:04:36,126 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:04:36,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:03:40" (3/4) ... [2021-10-29 05:04:36,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 05:04:36,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-29 05:04:36,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-29 05:04:36,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-29 05:04:36,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-29 05:04:36,153 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-29 05:04:36,154 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:04:36,155 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 05:04:36,180 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,182 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,182 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,183 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:04:36,184 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:04:36,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == \result) && tmp == 0bv32) [2021-10-29 05:04:36,185 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && tmp == 0bv32) [2021-10-29 05:04:36,186 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) [2021-10-29 05:04:36,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result) && tmp == 0bv32 [2021-10-29 05:04:36,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:04:36,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:04:36,237 INFO L168 Benchmark]: Toolchain (without parser) took 59369.31 ms. Allocated memory was 81.8 MB in the beginning and 205.5 MB in the end (delta: 123.7 MB). Free memory was 45.5 MB in the beginning and 61.6 MB in the end (delta: -16.1 MB). Peak memory consumption was 110.7 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,238 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 62.8 MB in the beginning and 62.8 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:04:36,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.64 ms. Allocated memory is still 81.8 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,239 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.83 ms. Allocated memory is still 81.8 MB. Free memory was 43.0 MB in the beginning and 39.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,239 INFO L168 Benchmark]: Boogie Preprocessor took 66.43 ms. Allocated memory is still 81.8 MB. Free memory was 39.2 MB in the beginning and 36.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,239 INFO L168 Benchmark]: RCFGBuilder took 2557.00 ms. Allocated memory is still 81.8 MB. Free memory was 36.5 MB in the beginning and 40.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,240 INFO L168 Benchmark]: TraceAbstraction took 55839.82 ms. Allocated memory was 81.8 MB in the beginning and 205.5 MB in the end (delta: 123.7 MB). Free memory was 40.1 MB in the beginning and 72.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 124.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,240 INFO L168 Benchmark]: Witness Printer took 110.78 ms. Allocated memory is still 205.5 MB. Free memory was 72.1 MB in the beginning and 61.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 05:04:36,243 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 62.8 MB in the beginning and 62.8 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 684.64 ms. Allocated memory is still 81.8 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.83 ms. Allocated memory is still 81.8 MB. Free memory was 43.0 MB in the beginning and 39.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.43 ms. Allocated memory is still 81.8 MB. Free memory was 39.2 MB in the beginning and 36.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2557.00 ms. Allocated memory is still 81.8 MB. Free memory was 36.5 MB in the beginning and 40.5 MB in the end (delta: -4.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 55839.82 ms. Allocated memory was 81.8 MB in the beginning and 205.5 MB in the end (delta: 123.7 MB). Free memory was 40.1 MB in the beginning and 72.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 124.0 MB. Max. memory is 16.1 GB. * Witness Printer took 110.78 ms. Allocated memory is still 205.5 MB. Free memory was 72.1 MB in the beginning and 61.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 969]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 969]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 969]: 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, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 55.7s, OverallIterations: 18, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2058 SDtfs, 4535 SDslu, 5811 SDs, 0 SdLazy, 977 SolverSat, 153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2867 GetRequests, 2705 SyntacticMatches, 0 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1127occurred in iteration=17, InterpolantAutomatonStates: 146, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.3s AutomataMinimizationTime, 18 MinimizatonAttempts, 8260 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 152 NumberOfFragments, 1145 HoareAnnotationTreeSize, 45 FomulaSimplifications, 79389859 FormulaSimplificationTreeSizeReduction, 3.9s HoareSimplificationTime, 45 FomulaSimplificationsInter, 9376668 FormulaSimplificationTreeSizeReductionInter, 9.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 8.8s InterpolantComputationTime, 1414 NumberOfCodeBlocks, 1414 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2778 ConstructedInterpolants, 0 QuantifiedInterpolants, 5954 SizeOfPredicates, 64 NumberOfNonLiveVariables, 6153 ConjunctsInSsa, 129 ConjunctsInUnsatCore, 50 InterpolantComputations, 31 PerfectInterpolantSequences, 1532/1966 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: 270]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 941]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && tmp == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 1bv32 == \result) && 0bv32 == pumpRunning) || ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == \result) && tmp == 0bv32) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning)) || (((((splverifierCounter == 0bv32 && 1bv32 == \result) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && tmp == 0bv32) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: ((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32) || (((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && \result == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) || (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 291]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: ((((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && 0bv32 == pumpRunning) && tmp == 0bv32)) || ((((((((splverifierCounter == 0bv32 && 1bv32 == \result) && methaneLevelCritical == 0bv32) && tmp___0 == 0bv32) && tmp == 1bv32) && systemActive == 1bv32) && \result == 0bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32)) || ((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: (((((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && 2bv32 == tmp___0) && 2bv32 == \result) && 1bv32 == \result) && tmp == 0bv32 - InvariantResult [Line: 238]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 951]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && methaneLevelCritical == 0bv32) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && tmp == 0bv32) || ((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && \result == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && 0bv32 == pumpRunning) || ((((((splverifierCounter == 0bv32 && tmp == 1bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((((splverifierCounter == 0bv32 && waterLevel == 2bv32) && tmp == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && 0bv32 == pumpRunning)) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp == 1bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && \result == 1bv32) && tmp == 0bv32)) || (((((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp == 0bv32) && tmp___0 == 1bv32) && \result == 0bv32) && systemActive == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: ((((((splverifierCounter == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && methaneLevelCritical == 1bv32) && 0bv32 == pumpRunning) || ((((splverifierCounter == 0bv32 && methaneLevelCritical == 0bv32) && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && methaneLevelCritical == 0bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && tmp == 0bv32)) || (((((((\result == 1bv32 && splverifierCounter == 0bv32) && 1bv32 == pumpRunning) && waterLevel == 2bv32) && tmp___0 == 1bv32) && systemActive == 1bv32) && methaneLevelCritical == 1bv32) && tmp == 0bv32) - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 924]: Loop Invariant Derived loop invariant: ((methaneLevelCritical == 0bv32 && systemActive == 1bv32) && waterLevel == 1bv32) && 0bv32 == pumpRunning - InvariantResult [Line: 432]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-29 05:04:36,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a07c992-de46-4586-94a3-49fe3142d2fe/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...