./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 ............................................................................................................................................ 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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 a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:45:54,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:45:54,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:45:54,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:45:54,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:45:54,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:45:54,682 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:45:54,685 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:45:54,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:45:54,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:45:54,690 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:45:54,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:45:54,692 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:45:54,693 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:45:54,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:45:54,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:45:54,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:45:54,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:45:54,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:45:54,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:45:54,708 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:45:54,709 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:45:54,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:45:54,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:45:54,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:45:54,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:45:54,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:45:54,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:45:54,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:45:54,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:45:54,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:45:54,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:45:54,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:45:54,725 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:45:54,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:45:54,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:45:54,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:45:54,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:45:54,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:45:54,731 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:45:54,732 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:45:54,735 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:45:54,790 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:45:54,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:45:54,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:45:54,791 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:45:54,792 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:45:54,792 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:45:54,792 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:45:54,792 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:45:54,793 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:45:54,793 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:45:54,793 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:45:54,793 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:45:54,793 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:45:54,794 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:45:54,794 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:45:54,795 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:45:54,795 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:45:54,795 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:45:54,795 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:45:54,796 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:45:54,796 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:45:54,796 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:45:54,797 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:45:54,797 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:45:54,797 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:45:54,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:45:54,798 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:45:54,798 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:45:54,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:45:54,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:45:54,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:45:54,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:45:54,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:45:54,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:45:54,816 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:45:54,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:45:54,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:45:54,819 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:45:54,820 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:45:54,820 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2021-10-29 04:45:55,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:45:55,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:45:55,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:45:55,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:45:55,144 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:45:55,145 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-29 04:45:55,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/5b35e603c/2a3cee638a524dd392d461527ee51f9b/FLAG715278c12 [2021-10-29 04:45:55,928 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:45:55,930 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-29 04:45:55,945 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/5b35e603c/2a3cee638a524dd392d461527ee51f9b/FLAG715278c12 [2021-10-29 04:45:56,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/5b35e603c/2a3cee638a524dd392d461527ee51f9b [2021-10-29 04:45:56,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:45:56,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:45:56,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:56,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:45:56,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:45:56,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:56" (1/1) ... [2021-10-29 04:45:56,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a348426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:56, skipping insertion in model container [2021-10-29 04:45:56,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:45:56" (1/1) ... [2021-10-29 04:45:56,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:45:56,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:45:56,732 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-29 04:45:56,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:45:56,764 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 04:45:56,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2cfaa074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:45:56, skipping insertion in model container [2021-10-29 04:45:56,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:45:56,765 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-29 04:45:56,768 INFO L168 Benchmark]: Toolchain (without parser) took 568.29 ms. Allocated memory is still 121.6 MB. Free memory was 92.1 MB in the beginning and 92.1 MB in the end (delta: 75.6 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:56,768 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:45:56,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.38 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 92.3 MB in the end (delta: -319.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:45:56,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 121.6 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 565.38 ms. Allocated memory is still 121.6 MB. Free memory was 91.9 MB in the beginning and 92.3 MB in the end (delta: -319.2 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 645]: 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 04:45:59,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:45:59,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:45:59,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:45:59,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:45:59,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:45:59,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:45:59,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:45:59,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:45:59,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:45:59,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:45:59,571 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:45:59,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:45:59,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:45:59,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:45:59,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:45:59,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:45:59,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:45:59,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:45:59,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:45:59,599 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:45:59,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:45:59,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:45:59,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:45:59,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:45:59,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:45:59,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:45:59,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:45:59,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:45:59,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:45:59,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:45:59,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:45:59,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:45:59,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:45:59,630 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:45:59,642 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:45:59,644 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:45:59,644 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:45:59,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:45:59,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:45:59,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:45:59,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-29 04:45:59,705 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:45:59,706 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:45:59,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:45:59,708 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:45:59,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:45:59,709 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:45:59,709 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:45:59,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:45:59,711 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:45:59,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:45:59,714 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:45:59,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:45:59,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:45:59,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:45:59,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:45:59,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:45:59,716 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:45:59,716 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 04:45:59,716 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 04:45:59,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:45:59,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:45:59,717 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:45:59,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:45:59,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:45:59,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 04:45:59,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:45:59,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:45:59,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:45:59,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:45:59,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:45:59,720 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-29 04:45:59,720 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 04:45:59,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:45:59,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:45:59,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:45:59,722 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a376335b8a3ab47de9d514c456736b6e8cd0860f7823a0aab43b69eb15a45340 [2021-10-29 04:46:00,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:46:00,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:46:00,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:46:00,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:46:00,240 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:46:00,240 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-29 04:46:00,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/48fd9ca9f/aabfe6ad76fa4282acc70797dd7608ca/FLAGc8b7e3d6e [2021-10-29 04:46:01,037 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:46:01,037 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c [2021-10-29 04:46:01,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/48fd9ca9f/aabfe6ad76fa4282acc70797dd7608ca/FLAGc8b7e3d6e [2021-10-29 04:46:01,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/data/48fd9ca9f/aabfe6ad76fa4282acc70797dd7608ca [2021-10-29 04:46:01,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:46:01,320 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:46:01,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:01,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:46:01,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:46:01,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:01" (1/1) ... [2021-10-29 04:46:01,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e387516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:01, skipping insertion in model container [2021-10-29 04:46:01,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:01" (1/1) ... [2021-10-29 04:46:01,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:46:01,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:46:01,830 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-29 04:46:01,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:01,850 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-29 04:46:01,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:46:01,941 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-29 04:46:01,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:01,949 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:46:02,097 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_f2600a60-87b5-4f89-a0c6-bb6e610a782d/sv-benchmarks/c/product-lines/minepump_spec3_product51.cil.c[18789,18802] [2021-10-29 04:46:02,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:46:02,141 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:46:02,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02 WrapperNode [2021-10-29 04:46:02,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:46:02,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:46:02,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:46:02,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:46:02,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:46:02,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:46:02,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:46:02,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:46:02,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:46:02,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:46:02,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:46:02,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:46:02,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (1/1) ... [2021-10-29 04:46:02,425 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:46:02,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:46:02,460 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:46:02,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:46:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:46:02,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 04:46:02,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:46:02,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:46:05,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:46:05,258 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-29 04:46:05,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:05 BoogieIcfgContainer [2021-10-29 04:46:05,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:46:05,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:46:05,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:46:05,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:46:05,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:46:01" (1/3) ... [2021-10-29 04:46:05,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421ab867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:05, skipping insertion in model container [2021-10-29 04:46:05,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:02" (2/3) ... [2021-10-29 04:46:05,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421ab867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:05, skipping insertion in model container [2021-10-29 04:46:05,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:05" (3/3) ... [2021-10-29 04:46:05,272 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2021-10-29 04:46:05,279 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:46:05,280 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-29 04:46:05,357 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:46:05,367 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 04:46:05,368 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-29 04:46:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 121 states have (on average 1.56198347107438) internal successors, (189), 124 states have internal predecessors, (189), 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 04:46:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 04:46:05,407 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:05,408 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 04:46:05,408 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 04:46:05,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash 335687254, now seen corresponding path program 1 times [2021-10-29 04:46:05,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:05,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [854492825] [2021-10-29 04:46:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:05,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:05,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:05,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:05,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 04:46:05,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:05,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 04:46:05,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:05,848 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 04:46:05,848 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:05,936 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 04:46:05,938 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:05,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [854492825] [2021-10-29 04:46:05,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [854492825] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:05,939 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:05,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 04:46:05,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122512424] [2021-10-29 04:46:05,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 04:46:05,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:05,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 04:46:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 04:46:05,976 INFO L87 Difference]: Start difference. First operand has 125 states, 121 states have (on average 1.56198347107438) internal successors, (189), 124 states have internal predecessors, (189), 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 04:46:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:06,013 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2021-10-29 04:46:06,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 04:46:06,014 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 04:46:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:06,027 INFO L225 Difference]: With dead ends: 244 [2021-10-29 04:46:06,027 INFO L226 Difference]: Without dead ends: 121 [2021-10-29 04:46:06,030 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 04:46:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-29 04:46:06,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2021-10-29 04:46:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.5) internal successors, (177), 120 states have internal predecessors, (177), 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 04:46:06,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 177 transitions. [2021-10-29 04:46:06,077 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 177 transitions. Word has length 18 [2021-10-29 04:46:06,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:06,078 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 177 transitions. [2021-10-29 04:46:06,078 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 04:46:06,078 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 177 transitions. [2021-10-29 04:46:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-29 04:46:06,080 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:06,080 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 04:46:06,097 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:06,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:06,290 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 04:46:06,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:06,291 INFO L85 PathProgramCache]: Analyzing trace with hash -575343499, now seen corresponding path program 1 times [2021-10-29 04:46:06,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:06,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1709111621] [2021-10-29 04:46:06,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:06,293 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:06,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:06,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:06,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 04:46:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:06,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:06,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:06,669 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 04:46:06,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:06,779 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 04:46:06,780 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:06,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1709111621] [2021-10-29 04:46:06,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1709111621] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:06,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:06,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:46:06,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962218170] [2021-10-29 04:46:06,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:06,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:06,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:06,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:06,790 INFO L87 Difference]: Start difference. First operand 121 states and 177 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 04:46:06,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:06,827 INFO L93 Difference]: Finished difference Result 121 states and 177 transitions. [2021-10-29 04:46:06,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:06,828 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 04:46:06,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:06,830 INFO L225 Difference]: With dead ends: 121 [2021-10-29 04:46:06,830 INFO L226 Difference]: Without dead ends: 51 [2021-10-29 04:46:06,831 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 04:46:06,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-29 04:46:06,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-29 04:46:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 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 04:46:06,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-29 04:46:06,839 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-29 04:46:06,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:06,839 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-29 04:46:06,840 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 04:46:06,840 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-29 04:46:06,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 04:46:06,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:06,841 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 04:46:06,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:07,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:07,060 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 04:46:07,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:07,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1538545843, now seen corresponding path program 1 times [2021-10-29 04:46:07,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:07,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [55211132] [2021-10-29 04:46:07,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:07,062 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:07,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:07,064 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:07,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 04:46:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:07,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:07,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:07,485 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 04:46:07,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:07,603 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 04:46:07,603 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:07,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [55211132] [2021-10-29 04:46:07,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [55211132] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:07,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:07,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-29 04:46:07,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051542897] [2021-10-29 04:46:07,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 04:46:07,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:07,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 04:46:07,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 04:46:07,607 INFO L87 Difference]: Start difference. First operand 51 states and 74 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 04:46:07,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:07,640 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2021-10-29 04:46:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 04:46:07,641 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 04:46:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:07,643 INFO L225 Difference]: With dead ends: 166 [2021-10-29 04:46:07,643 INFO L226 Difference]: Without dead ends: 121 [2021-10-29 04:46:07,644 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 04:46:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-10-29 04:46:07,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 72. [2021-10-29 04:46:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.4929577464788732) internal successors, (106), 71 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:46:07,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 106 transitions. [2021-10-29 04:46:07,674 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 106 transitions. Word has length 24 [2021-10-29 04:46:07,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:07,675 INFO L470 AbstractCegarLoop]: Abstraction has 72 states and 106 transitions. [2021-10-29 04:46:07,675 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 04:46:07,675 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2021-10-29 04:46:07,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 04:46:07,677 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:07,677 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 04:46:07,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:07,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:07,878 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 04:46:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash -560581361, now seen corresponding path program 1 times [2021-10-29 04:46:07,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:07,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485283005] [2021-10-29 04:46:07,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:07,881 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:07,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:07,883 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:07,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 04:46:08,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:08,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-29 04:46:08,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:08,247 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 04:46:08,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:08,330 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 04:46:08,331 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:08,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485283005] [2021-10-29 04:46:08,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1485283005] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:08,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:08,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-29 04:46:08,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753484677] [2021-10-29 04:46:08,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 04:46:08,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:08,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 04:46:08,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 04:46:08,338 INFO L87 Difference]: Start difference. First operand 72 states and 106 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 04:46:08,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:08,447 INFO L93 Difference]: Finished difference Result 161 states and 239 transitions. [2021-10-29 04:46:08,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 04:46:08,448 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 04:46:08,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:08,454 INFO L225 Difference]: With dead ends: 161 [2021-10-29 04:46:08,455 INFO L226 Difference]: Without dead ends: 95 [2021-10-29 04:46:08,456 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 04:46:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-29 04:46:08,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-10-29 04:46:08,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 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 04:46:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2021-10-29 04:46:08,487 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 26 [2021-10-29 04:46:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:08,487 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2021-10-29 04:46:08,488 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 04:46:08,488 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2021-10-29 04:46:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:46:08,495 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:08,496 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] [2021-10-29 04:46:08,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:08,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:08,719 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 04:46:08,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:08,720 INFO L85 PathProgramCache]: Analyzing trace with hash 364943842, now seen corresponding path program 1 times [2021-10-29 04:46:08,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:08,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824390301] [2021-10-29 04:46:08,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:08,721 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:08,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:08,722 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:08,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-29 04:46:08,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:46:08,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-29 04:46:08,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:46:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:46:09,112 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:46:09,259 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 04:46:09,260 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-29 04:46:09,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824390301] [2021-10-29 04:46:09,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824390301] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:46:09,260 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:46:09,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-29 04:46:09,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570722946] [2021-10-29 04:46:09,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 04:46:09,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-29 04:46:09,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 04:46:09,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 04:46:09,262 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 04:46:09,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:46:09,855 INFO L93 Difference]: Finished difference Result 1012 states and 1490 transitions. [2021-10-29 04:46:09,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-29 04:46:09,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-10-29 04:46:09,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:46:09,864 INFO L225 Difference]: With dead ends: 1012 [2021-10-29 04:46:09,864 INFO L226 Difference]: Without dead ends: 925 [2021-10-29 04:46:09,868 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 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 04:46:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2021-10-29 04:46:09,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 236. [2021-10-29 04:46:09,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.4170212765957446) internal successors, (333), 235 states have internal predecessors, (333), 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 04:46:09,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 333 transitions. [2021-10-29 04:46:09,953 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 333 transitions. Word has length 27 [2021-10-29 04:46:09,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:46:09,954 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 333 transitions. [2021-10-29 04:46:09,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 04:46:09,955 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 333 transitions. [2021-10-29 04:46:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-29 04:46:09,958 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:46:09,958 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] [2021-10-29 04:46:09,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:10,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:10,175 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 04:46:10,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:46:10,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1335319900, now seen corresponding path program 1 times [2021-10-29 04:46:10,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-29 04:46:10,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1928196789] [2021-10-29 04:46:10,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:46:10,177 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 04:46:10,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat [2021-10-29 04:46:10,178 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 04:46:10,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-29 04:46:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:46:11,774 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:46:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:46:13,462 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-29 04:46:13,463 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:46:13,464 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:13,466 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:13,467 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:46:13,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-29 04:46:13,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/mathsat -unsat_core_generation=3 [2021-10-29 04:46:13,691 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-10-29 04:46:13,695 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:46:13,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:46:13 BoogieIcfgContainer [2021-10-29 04:46:13,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:46:13,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:46:13,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:46:13,879 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:46:13,880 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:05" (3/4) ... [2021-10-29 04:46:13,882 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:46:14,019 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:46:14,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:46:14,022 INFO L168 Benchmark]: Toolchain (without parser) took 12700.57 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 30.0 MB in the beginning and 29.1 MB in the end (delta: 959.7 kB). Peak memory consumption was 28.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,022 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 34.9 MB in the beginning and 34.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:46:14,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.73 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 47.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 148.54 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 44.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,024 INFO L168 Benchmark]: Boogie Preprocessor took 110.65 ms. Allocated memory is still 67.1 MB. Free memory was 44.0 MB in the beginning and 41.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,025 INFO L168 Benchmark]: RCFGBuilder took 2846.80 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.2 MB in the beginning and 50.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,025 INFO L168 Benchmark]: TraceAbstraction took 8612.58 ms. Allocated memory is still 83.9 MB. Free memory was 50.1 MB in the beginning and 40.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,026 INFO L168 Benchmark]: Witness Printer took 142.28 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 29.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:46:14,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 54.5 MB. Free memory was 34.9 MB in the beginning and 34.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 820.73 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 47.9 MB in the end (delta: -18.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 148.54 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 44.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 110.65 ms. Allocated memory is still 67.1 MB. Free memory was 44.0 MB in the beginning and 41.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2846.80 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.2 MB in the beginning and 50.5 MB in the end (delta: -9.3 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8612.58 ms. Allocated memory is still 83.9 MB. Free memory was 50.1 MB in the beginning and 40.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Witness Printer took 142.28 ms. Allocated memory is still 83.9 MB. Free memory was 40.2 MB in the beginning and 29.1 MB in the end (delta: 11.2 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 - CounterExampleResult [Line: 987]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L483] int cleanupTimeShifts = 4; [L786] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L559] int retValue_acc ; [L560] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L611] retValue_acc = 1 [L612] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L566] tmp = valid_product() [L568] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L174] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L176] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L182] tmp = __VERIFIER_nondet_int() [L184] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L76] COND TRUE waterLevel < 2 [L77] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp___2)) [L208] tmp___1 = __VERIFIER_nondet_int() [L210] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L436] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L443] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L243] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L250] COND FALSE !(\read(systemActive)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L450] int tmp ; [L451] int tmp___0 ; [L452] int tmp___1 ; [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L456] tmp = isMethaneLevelCritical() [L458] COND FALSE !(\read(tmp)) [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L462] tmp___0 = getWaterLevel() [L464] COND TRUE tmp___0 == 2 [L350] int retValue_acc ; [L353] retValue_acc = pumpRunning [L354] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L466] tmp___1 = isPumpRunning() [L468] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L987] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - UnprovableResult [Line: 987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 987]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 8.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 514 SDtfs, 1113 SDslu, 1009 SDs, 0 SdLazy, 182 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=5, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 740 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 428 SizeOfPredicates, 4 NumberOfNonLiveVariables, 995 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:46:14,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2600a60-87b5-4f89-a0c6-bb6e610a782d/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...