./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8 --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 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:40:48,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:40:48,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:40:48,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:40:48,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:40:48,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:40:48,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:40:48,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:40:48,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:40:48,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:40:48,699 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:40:48,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:40:48,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:40:48,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:40:48,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:40:48,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:40:48,707 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:40:48,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:40:48,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:40:48,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:40:48,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:40:48,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:40:48,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:40:48,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:40:48,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:40:48,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:40:48,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:40:48,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:40:48,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:40:48,741 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:40:48,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:40:48,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:40:48,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:40:48,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:40:48,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:40:48,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:40:48,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:40:48,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:40:48,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:40:48,749 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:40:48,750 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:40:48,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:40:48,778 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:40:48,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:40:48,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:40:48,782 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:40:48,782 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:40:48,783 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:40:48,783 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:40:48,783 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:40:48,787 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:40:48,787 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:40:48,788 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:40:48,788 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:40:48,788 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:40:48,788 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:40:48,789 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:40:48,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:40:48,790 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:40:48,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:40:48,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:40:48,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:40:48,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:40:48,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:40:48,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:40:48,793 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:40:48,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:40:48,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:40:48,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:40:48,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:40:48,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:40:48,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:40:48,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:48,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:40:48,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:40:48,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:40:48,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:40:48,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:40:48,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:40:48,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:40:48,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:40:48,797 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb [2021-11-07 01:40:49,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:40:49,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:40:49,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:40:49,115 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:40:49,117 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:40:49,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-07 01:40:49,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/b66f8987c/78eabb56ad004edf9539d9bae80c9b8c/FLAG813ffdcd8 [2021-11-07 01:40:49,733 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:40:49,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-07 01:40:49,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/b66f8987c/78eabb56ad004edf9539d9bae80c9b8c/FLAG813ffdcd8 [2021-11-07 01:40:50,034 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/b66f8987c/78eabb56ad004edf9539d9bae80c9b8c [2021-11-07 01:40:50,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:40:50,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:40:50,050 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:50,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:40:50,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:40:50,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:50" (1/1) ... [2021-11-07 01:40:50,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222c9d92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:50, skipping insertion in model container [2021-11-07 01:40:50,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:50" (1/1) ... [2021-11-07 01:40:50,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:40:50,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:40:50,398 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-07 01:40:50,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:50,484 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) [2021-11-07 01:40:50,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@78741f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:50, skipping insertion in model container [2021-11-07 01:40:50,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:50,486 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:40:50,488 INFO L168 Benchmark]: Toolchain (without parser) took 448.81 ms. Allocated memory is still 140.5 MB. Free memory was 104.5 MB in the beginning and 114.0 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:50,492 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 63.0 MB in the beginning and 63.0 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:40:50,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.39 ms. Allocated memory is still 140.5 MB. Free memory was 104.1 MB in the beginning and 114.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 01:40:50,497 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 63.0 MB in the beginning and 63.0 MB in the end (delta: 28.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 435.39 ms. Allocated memory is still 140.5 MB. Free memory was 104.1 MB in the beginning and 114.0 MB in the end (delta: -9.9 MB). 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: 78]: 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8 --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 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:40:52,736 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:40:52,738 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:40:52,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:40:52,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:40:52,775 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:40:52,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:40:52,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:40:52,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:40:52,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:40:52,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:40:52,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:40:52,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:40:52,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:40:52,788 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:40:52,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:40:52,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:40:52,792 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:40:52,794 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:40:52,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:40:52,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:40:52,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:40:52,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:40:52,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:40:52,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:40:52,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:40:52,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:40:52,809 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:40:52,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:40:52,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:40:52,811 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:40:52,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:40:52,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:40:52,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:40:52,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:40:52,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:40:52,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:40:52,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:40:52,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:40:52,834 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:40:52,836 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:40:52,837 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 01:40:52,886 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:40:52,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:40:52,890 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:40:52,890 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:40:52,891 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:40:52,891 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:40:52,894 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:40:52,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:40:52,894 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:40:52,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:40:52,897 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:40:52,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:40:52,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:40:52,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:40:52,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:40:52,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:40:52,899 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:40:52,899 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:40:52,899 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:40:52,899 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:40:52,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:40:52,900 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:40:52,900 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:40:52,900 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:40:52,901 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:40:52,901 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:40:52,901 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:52,902 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:40:52,902 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:40:52,902 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:40:52,902 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:40:52,903 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:40:52,903 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:40:52,903 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:40:52,904 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:40:52,904 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 577813f622c64f907053c4832aa01617433208d6dc94051427e21d3f2bb7bdeb [2021-11-07 01:40:53,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:40:53,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:40:53,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:40:53,400 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:40:53,400 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:40:53,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-07 01:40:53,466 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/fb518fc4a/3f841cb160054b1191717ad4b7b2b225/FLAG99e0254a6 [2021-11-07 01:40:54,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:40:54,049 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c [2021-11-07 01:40:54,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/fb518fc4a/3f841cb160054b1191717ad4b7b2b225/FLAG99e0254a6 [2021-11-07 01:40:54,311 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/data/fb518fc4a/3f841cb160054b1191717ad4b7b2b225 [2021-11-07 01:40:54,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:40:54,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:40:54,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:54,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:40:54,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:40:54,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:54" (1/1) ... [2021-11-07 01:40:54,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659c2f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:54, skipping insertion in model container [2021-11-07 01:40:54,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:40:54" (1/1) ... [2021-11-07 01:40:54,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:40:54,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:40:54,763 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-07 01:40:54,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:54,885 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:40:54,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:40:54,978 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-07 01:40:55,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:55,035 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:40:55,119 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_504a49ba-f0d6-4597-bad4-8c5e64000c2b/sv-benchmarks/c/product-lines/minepump_spec1_product37.cil.c[13023,13036] [2021-11-07 01:40:55,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:40:55,186 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:40:55,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55 WrapperNode [2021-11-07 01:40:55,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:40:55,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:40:55,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:40:55,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:40:55,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:40:55,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:40:55,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:40:55,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:40:55,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:40:55,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:40:55,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:40:55,401 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:40:55,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (1/1) ... [2021-11-07 01:40:55,409 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:40:55,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:40:55,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:40:55,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:40:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:40:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:40:55,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:40:55,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:40:58,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:40:58,011 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-11-07 01:40:58,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:58 BoogieIcfgContainer [2021-11-07 01:40:58,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:40:58,016 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:40:58,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:40:58,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:40:58,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:40:54" (1/3) ... [2021-11-07 01:40:58,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1ac8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:58, skipping insertion in model container [2021-11-07 01:40:58,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:40:55" (2/3) ... [2021-11-07 01:40:58,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e1ac8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:40:58, skipping insertion in model container [2021-11-07 01:40:58,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:58" (3/3) ... [2021-11-07 01:40:58,023 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2021-11-07 01:40:58,029 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:40:58,030 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 01:40:58,080 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:40:58,086 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 [2021-11-07 01:40:58,087 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 01:40:58,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 107 states have (on average 1.5700934579439252) internal successors, (168), 110 states have internal predecessors, (168), 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) [2021-11-07 01:40:58,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:40:58,128 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:58,130 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:58,130 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:58,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:58,142 INFO L85 PathProgramCache]: Analyzing trace with hash 2109695399, now seen corresponding path program 1 times [2021-11-07 01:40:58,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:58,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [472147319] [2021-11-07 01:40:58,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:58,161 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:58,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:58,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:58,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:40:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:58,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:40:58,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:58,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:58,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:58,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:58,614 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:58,614 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [472147319] [2021-11-07 01:40:58,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [472147319] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:58,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:58,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:40:58,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902750257] [2021-11-07 01:40:58,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:40:58,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:58,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:40:58,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:40:58,640 INFO L87 Difference]: Start difference. First operand has 111 states, 107 states have (on average 1.5700934579439252) internal successors, (168), 110 states have internal predecessors, (168), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-07 01:40:58,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:58,670 INFO L93 Difference]: Finished difference Result 216 states and 329 transitions. [2021-11-07 01:40:58,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:40:58,672 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2021-11-07 01:40:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:58,683 INFO L225 Difference]: With dead ends: 216 [2021-11-07 01:40:58,683 INFO L226 Difference]: Without dead ends: 107 [2021-11-07 01:40:58,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:40:58,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-07 01:40:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-07 01:40:58,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 104 states have (on average 1.5) internal successors, (156), 106 states have internal predecessors, (156), 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) [2021-11-07 01:40:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-11-07 01:40:58,733 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 156 transitions. Word has length 16 [2021-11-07 01:40:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:58,733 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-11-07 01:40:58,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-11-07 01:40:58,734 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 156 transitions. [2021-11-07 01:40:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:40:58,735 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:58,735 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:40:58,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:58,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:58,949 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:58,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:58,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1093063509, now seen corresponding path program 1 times [2021-11-07 01:40:58,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:58,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991776368] [2021-11-07 01:40:58,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:58,952 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:58,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:58,956 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:58,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:40:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:59,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:59,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:59,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:59,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:40:59,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:59,296 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:40:59,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991776368] [2021-11-07 01:40:59,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991776368] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:40:59,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:40:59,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:40:59,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393733792] [2021-11-07 01:40:59,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:40:59,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:40:59,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:40:59,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:59,306 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-07 01:40:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:40:59,342 INFO L93 Difference]: Finished difference Result 107 states and 156 transitions. [2021-11-07 01:40:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:40:59,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 17 [2021-11-07 01:40:59,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:40:59,346 INFO L225 Difference]: With dead ends: 107 [2021-11-07 01:40:59,348 INFO L226 Difference]: Without dead ends: 45 [2021-11-07 01:40:59,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:40:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-07 01:40:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-07 01:40:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4772727272727273) internal successors, (65), 44 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:40:59,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2021-11-07 01:40:59,364 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 17 [2021-11-07 01:40:59,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:40:59,365 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2021-11-07 01:40:59,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-11-07 01:40:59,366 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2021-11-07 01:40:59,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:40:59,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:40:59,371 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] [2021-11-07 01:40:59,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:40:59,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:40:59,588 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:40:59,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:40:59,589 INFO L85 PathProgramCache]: Analyzing trace with hash -720159228, now seen corresponding path program 1 times [2021-11-07 01:40:59,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:40:59,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785121761] [2021-11-07 01:40:59,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:40:59,590 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:40:59,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:40:59,591 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:40:59,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:40:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:40:59,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:40:59,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:40:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:40:59,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:00,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:00,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785121761] [2021-11-07 01:41:00,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785121761] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:00,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:00,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:41:00,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185945217] [2021-11-07 01:41:00,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:41:00,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:00,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:41:00,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:41:00,044 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:41:00,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:00,054 INFO L93 Difference]: Finished difference Result 84 states and 124 transitions. [2021-11-07 01:41:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:41:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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 22 [2021-11-07 01:41:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:00,056 INFO L225 Difference]: With dead ends: 84 [2021-11-07 01:41:00,056 INFO L226 Difference]: Without dead ends: 45 [2021-11-07 01:41:00,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:41:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-07 01:41:00,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-07 01:41:00,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 44 states have internal predecessors, (64), 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) [2021-11-07 01:41:00,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2021-11-07 01:41:00,063 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 22 [2021-11-07 01:41:00,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:00,064 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2021-11-07 01:41:00,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 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) [2021-11-07 01:41:00,064 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2021-11-07 01:41:00,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:41:00,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:00,065 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] [2021-11-07 01:41:00,081 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:00,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:00,280 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:00,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:00,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2091202829, now seen corresponding path program 1 times [2021-11-07 01:41:00,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:00,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1300305164] [2021-11-07 01:41:00,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:00,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:00,286 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:00,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:41:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:00,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:41:00,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:00,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:00,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:00,670 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:00,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1300305164] [2021-11-07 01:41:00,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1300305164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:00,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:00,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:41:00,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101020731] [2021-11-07 01:41:00,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:41:00,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:00,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:41:00,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:41:00,673 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-07 01:41:00,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:00,731 INFO L93 Difference]: Finished difference Result 105 states and 152 transitions. [2021-11-07 01:41:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:41:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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 [2021-11-07 01:41:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:00,733 INFO L225 Difference]: With dead ends: 105 [2021-11-07 01:41:00,733 INFO L226 Difference]: Without dead ends: 66 [2021-11-07 01:41:00,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:41:00,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-07 01:41:00,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2021-11-07 01:41:00,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.4285714285714286) internal successors, (90), 63 states have internal predecessors, (90), 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) [2021-11-07 01:41:00,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 90 transitions. [2021-11-07 01:41:00,740 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 90 transitions. Word has length 24 [2021-11-07 01:41:00,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:00,741 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 90 transitions. [2021-11-07 01:41:00,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2021-11-07 01:41:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 90 transitions. [2021-11-07 01:41:00,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:41:00,742 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:00,742 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:00,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:00,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:00,943 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:00,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1013899842, now seen corresponding path program 1 times [2021-11-07 01:41:00,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:00,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671166608] [2021-11-07 01:41:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:00,944 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:00,946 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:00,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:41:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:01,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:41:01,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:01,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:01,352 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:01,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671166608] [2021-11-07 01:41:01,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671166608] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:01,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:01,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:41:01,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933365310] [2021-11-07 01:41:01,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:01,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:01,355 INFO L87 Difference]: Start difference. First operand 64 states and 90 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-07 01:41:01,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:01,437 INFO L93 Difference]: Finished difference Result 171 states and 239 transitions. [2021-11-07 01:41:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:41:01,438 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 30 [2021-11-07 01:41:01,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:01,440 INFO L225 Difference]: With dead ends: 171 [2021-11-07 01:41:01,440 INFO L226 Difference]: Without dead ends: 113 [2021-11-07 01:41:01,441 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:41:01,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-07 01:41:01,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 70. [2021-11-07 01:41:01,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 69 states have (on average 1.391304347826087) internal successors, (96), 69 states have internal predecessors, (96), 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) [2021-11-07 01:41:01,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 96 transitions. [2021-11-07 01:41:01,452 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 96 transitions. Word has length 30 [2021-11-07 01:41:01,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:01,452 INFO L470 AbstractCegarLoop]: Abstraction has 70 states and 96 transitions. [2021-11-07 01:41:01,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2021-11-07 01:41:01,453 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 96 transitions. [2021-11-07 01:41:01,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-07 01:41:01,454 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:01,455 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:01,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:01,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:01,673 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:01,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1648611201, now seen corresponding path program 1 times [2021-11-07 01:41:01,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:01,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [470256747] [2021-11-07 01:41:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:01,674 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:01,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:01,677 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:01,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:41:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:01,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:41:01,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:02,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:02,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:02,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [470256747] [2021-11-07 01:41:02,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [470256747] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:02,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:02,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-07 01:41:02,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448483289] [2021-11-07 01:41:02,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:02,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:02,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:02,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:02,212 INFO L87 Difference]: Start difference. First operand 70 states and 96 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-07 01:41:02,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:02,344 INFO L93 Difference]: Finished difference Result 344 states and 483 transitions. [2021-11-07 01:41:02,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 01:41:02,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2021-11-07 01:41:02,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:02,348 INFO L225 Difference]: With dead ends: 344 [2021-11-07 01:41:02,348 INFO L226 Difference]: Without dead ends: 280 [2021-11-07 01:41:02,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:41:02,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-11-07 01:41:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 128. [2021-11-07 01:41:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.3779527559055118) internal successors, (175), 127 states have internal predecessors, (175), 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) [2021-11-07 01:41:02,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 175 transitions. [2021-11-07 01:41:02,370 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 175 transitions. Word has length 30 [2021-11-07 01:41:02,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:02,371 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 175 transitions. [2021-11-07 01:41:02,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2021-11-07 01:41:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 175 transitions. [2021-11-07 01:41:02,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:41:02,373 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:02,373 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:02,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:02,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:02,586 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:02,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:02,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1974587593, now seen corresponding path program 1 times [2021-11-07 01:41:02,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:02,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1344662794] [2021-11-07 01:41:02,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:02,588 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:02,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:02,589 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:02,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:41:02,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:02,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:41:02,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:02,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:02,942 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:03,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:03,042 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:03,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1344662794] [2021-11-07 01:41:03,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1344662794] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:03,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:03,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-07 01:41:03,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308068630] [2021-11-07 01:41:03,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:41:03,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:03,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:41:03,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:41:03,044 INFO L87 Difference]: Start difference. First operand 128 states and 175 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-07 01:41:03,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:03,239 INFO L93 Difference]: Finished difference Result 366 states and 502 transitions. [2021-11-07 01:41:03,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:41:03,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-07 01:41:03,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:03,243 INFO L225 Difference]: With dead ends: 366 [2021-11-07 01:41:03,243 INFO L226 Difference]: Without dead ends: 364 [2021-11-07 01:41:03,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 01:41:03,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-07 01:41:03,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 128. [2021-11-07 01:41:03,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 1.3700787401574803) internal successors, (174), 127 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:41:03,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 174 transitions. [2021-11-07 01:41:03,264 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 174 transitions. Word has length 31 [2021-11-07 01:41:03,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:03,264 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 174 transitions. [2021-11-07 01:41:03,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2021-11-07 01:41:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 174 transitions. [2021-11-07 01:41:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:41:03,266 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:03,267 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:03,286 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:03,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:03,482 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:03,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:03,483 INFO L85 PathProgramCache]: Analyzing trace with hash -735158350, now seen corresponding path program 1 times [2021-11-07 01:41:03,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:03,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174483957] [2021-11-07 01:41:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:03,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:03,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:03,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:03,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:41:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:03,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:41:03,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:03,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:03,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:03,982 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:03,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174483957] [2021-11-07 01:41:03,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174483957] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:03,982 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:03,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-07 01:41:03,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117970940] [2021-11-07 01:41:03,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:41:03,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:03,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:41:03,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:41:03,984 INFO L87 Difference]: Start difference. First operand 128 states and 174 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:41:04,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:04,060 INFO L93 Difference]: Finished difference Result 346 states and 466 transitions. [2021-11-07 01:41:04,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 01:41:04,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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 31 [2021-11-07 01:41:04,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:04,063 INFO L225 Difference]: With dead ends: 346 [2021-11-07 01:41:04,063 INFO L226 Difference]: Without dead ends: 224 [2021-11-07 01:41:04,064 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 01:41:04,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-07 01:41:04,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 136. [2021-11-07 01:41:04,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.348148148148148) internal successors, (182), 135 states have internal predecessors, (182), 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) [2021-11-07 01:41:04,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2021-11-07 01:41:04,084 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 31 [2021-11-07 01:41:04,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:04,085 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2021-11-07 01:41:04,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2021-11-07 01:41:04,086 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2021-11-07 01:41:04,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-07 01:41:04,087 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:04,087 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:04,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:04,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:04,304 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:04,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:04,304 INFO L85 PathProgramCache]: Analyzing trace with hash -476992912, now seen corresponding path program 1 times [2021-11-07 01:41:04,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:04,305 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [270600647] [2021-11-07 01:41:04,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:04,305 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:04,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:04,306 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:04,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:41:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:41:04,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:41:04,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:41:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:04,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:41:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:41:04,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:41:04,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [270600647] [2021-11-07 01:41:04,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [270600647] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:41:04,815 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:41:04,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-07 01:41:04,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205106287] [2021-11-07 01:41:04,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:41:04,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:41:04,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:41:04,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:41:04,816 INFO L87 Difference]: Start difference. First operand 136 states and 182 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2021-11-07 01:41:04,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:41:04,884 INFO L93 Difference]: Finished difference Result 418 states and 562 transitions. [2021-11-07 01:41:04,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:41:04,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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 31 [2021-11-07 01:41:04,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:41:04,887 INFO L225 Difference]: With dead ends: 418 [2021-11-07 01:41:04,887 INFO L226 Difference]: Without dead ends: 288 [2021-11-07 01:41:04,888 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:41:04,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-07 01:41:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 236. [2021-11-07 01:41:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.3319148936170213) internal successors, (313), 235 states have internal predecessors, (313), 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) [2021-11-07 01:41:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 313 transitions. [2021-11-07 01:41:04,915 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 313 transitions. Word has length 31 [2021-11-07 01:41:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:41:04,915 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 313 transitions. [2021-11-07 01:41:04,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 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) [2021-11-07 01:41:04,916 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 313 transitions. [2021-11-07 01:41:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-07 01:41:04,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:41:04,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:04,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:05,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:05,130 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:41:05,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:41:05,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1705214514, now seen corresponding path program 1 times [2021-11-07 01:41:05,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:41:05,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1750137587] [2021-11-07 01:41:05,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:41:05,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:41:05,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:41:05,132 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:41:05,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:41:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:41:06,776 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 01:41:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 01:41:08,006 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 01:41:08,007 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 01:41:08,008 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:41:08,023 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:41:08,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 01:41:08,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:41:08,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:41:08,227 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:41:08,231 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 01:41:08,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 01:41:08 BoogieIcfgContainer [2021-11-07 01:41:08,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 01:41:08,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 01:41:08,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 01:41:08,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 01:41:08,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:40:58" (3/4) ... [2021-11-07 01:41:08,410 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 01:41:08,555 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 01:41:08,555 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 01:41:08,557 INFO L168 Benchmark]: Toolchain (without parser) took 14235.38 ms. Allocated memory was 62.9 MB in the beginning and 117.4 MB in the end (delta: 54.5 MB). Free memory was 42.3 MB in the beginning and 62.5 MB in the end (delta: -20.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,558 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:41:08,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 864.75 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 31.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.5 MB in the beginning and 28.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,560 INFO L168 Benchmark]: Boogie Preprocessor took 97.50 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 25.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,560 INFO L168 Benchmark]: RCFGBuilder took 2613.49 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 25.2 MB in the beginning and 57.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,561 INFO L168 Benchmark]: TraceAbstraction took 10390.64 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 56.9 MB in the beginning and 75.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,561 INFO L168 Benchmark]: Witness Printer took 148.33 ms. Allocated memory is still 117.4 MB. Free memory was 75.1 MB in the beginning and 62.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 01:41:08,564 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 62.9 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 864.75 ms. Allocated memory is still 62.9 MB. Free memory was 42.1 MB in the beginning and 31.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.06 ms. Allocated memory is still 62.9 MB. Free memory was 31.5 MB in the beginning and 28.1 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 97.50 ms. Allocated memory is still 62.9 MB. Free memory was 28.1 MB in the beginning and 25.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2613.49 ms. Allocated memory was 62.9 MB in the beginning and 94.4 MB in the end (delta: 31.5 MB). Free memory was 25.2 MB in the beginning and 57.5 MB in the end (delta: -32.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10390.64 ms. Allocated memory was 94.4 MB in the beginning and 117.4 MB in the end (delta: 23.1 MB). Free memory was 56.9 MB in the beginning and 75.1 MB in the end (delta: -18.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 148.33 ms. Allocated memory is still 117.4 MB. Free memory was 75.1 MB in the beginning and 62.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 553]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L842] int waterLevel = 1; [L843] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L497] int retValue_acc ; [L498] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L584] int retValue_acc ; [L587] retValue_acc = 1 [L588] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L504] tmp = valid_product() [L506] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L777] int splverifierCounter ; [L778] int tmp ; [L779] int tmp___0 ; [L780] int tmp___1 ; [L781] int tmp___2 ; [L784] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L786] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L788] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L794] tmp = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L860] COND TRUE waterLevel < 2 [L861] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L804] tmp___0 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L872] COND FALSE !(\read(methaneLevelCritical)) [L875] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L814] tmp___2 = __VERIFIER_nondet_int() [L816] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L660] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L663] COND FALSE !(\read(pumpRunning)) [L634] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L637] COND TRUE ! pumpRunning [L757] int retValue_acc ; [L758] int tmp ; [L759] int tmp___0 ; [L922] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L925] COND FALSE !(waterLevel < 2) [L929] retValue_acc = 0 [L930] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L763] tmp = isHighWaterSensorDry() [L765] COND FALSE !(\read(tmp)) [L768] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L770] retValue_acc = tmp___0 [L771] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L639] tmp = isHighWaterLevel() [L641] COND TRUE \read(tmp) [L688] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L524] int tmp ; [L525] int tmp___0 ; [L881] int retValue_acc ; [L884] retValue_acc = methaneLevelCritical [L885] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L529] tmp = isMethaneLevelCritical() [L531] COND TRUE \read(tmp) [L712] int retValue_acc ; [L715] retValue_acc = pumpRunning [L716] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L533] tmp___0 = isPumpRunning() [L535] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L553] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - UnprovableResult [Line: 553]: 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: 553]: 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, 111 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 797 SDtfs, 993 SDslu, 1168 SDs, 0 SdLazy, 165 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 462 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=236occurred in iteration=9, InterpolantAutomatonStates: 43, 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, 9 MinimizatonAttempts, 573 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 446 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1824 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 18 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! [2021-11-07 01:41:08,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_504a49ba-f0d6-4597-bad4-8c5e64000c2b/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE