./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d28fd66952ef369b293b454cf3bb59a162528dc ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d28fd66952ef369b293b454cf3bb59a162528dc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:53:46,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:53:46,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:53:46,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:53:46,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:53:46,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:53:46,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:53:46,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:53:46,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:53:46,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:53:46,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:53:46,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:53:46,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:53:46,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:53:46,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:53:46,726 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:53:46,727 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:53:46,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:53:46,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:53:46,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:53:46,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:53:46,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:53:46,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:53:46,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:53:46,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:53:46,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:53:46,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:53:46,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:53:46,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:53:46,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:53:46,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:53:46,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:53:46,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:53:46,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:53:46,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:53:46,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:53:46,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:53:46,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:53:46,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:53:46,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:53:46,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:53:46,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 06:53:46,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:53:46,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:53:46,828 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:53:46,829 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:53:46,829 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:53:46,829 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:53:46,831 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 06:53:46,832 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:53:46,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:53:46,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 06:53:46,842 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 06:53:46,843 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:53:46,843 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 06:53:46,843 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 06:53:46,843 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 06:53:46,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:53:46,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:53:46,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 06:53:46,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:53:46,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:53:46,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:53:46,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:53:46,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:53:46,846 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:53:46,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:53:46,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:53:46,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:53:46,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:53:46,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:53:46,848 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:53:46,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:53:46,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:53:46,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:53:46,850 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:53:46,851 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_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d28fd66952ef369b293b454cf3bb59a162528dc [2021-10-13 06:53:47,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:53:47,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:53:47,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:53:47,125 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:53:47,126 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:53:47,127 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-13 06:53:47,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/47d727e5c/df699aecb9e44805b07758dbecc906a8/FLAGf4eb69fde [2021-10-13 06:53:47,728 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:53:47,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-13 06:53:47,746 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/47d727e5c/df699aecb9e44805b07758dbecc906a8/FLAGf4eb69fde [2021-10-13 06:53:48,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/47d727e5c/df699aecb9e44805b07758dbecc906a8 [2021-10-13 06:53:48,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:53:48,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:53:48,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:53:48,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:53:48,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:53:48,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:53:48" (1/1) ... [2021-10-13 06:53:48,098 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a1852e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:48, skipping insertion in model container [2021-10-13 06:53:48,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:53:48" (1/1) ... [2021-10-13 06:53:48,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:53:48,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:53:48,421 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_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-13 06:53:48,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:53:48,455 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-10-13 06:53:48,455 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2914fb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:48, skipping insertion in model container [2021-10-13 06:53:48,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:53:48,456 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 06:53:48,462 INFO L168 Benchmark]: Toolchain (without parser) took 380.99 ms. Allocated memory is still 96.5 MB. Free memory was 62.2 MB in the beginning and 69.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:48,463 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:53:48,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.52 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 69.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 06:53:48,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.52 ms. Allocated memory is still 96.5 MB. Free memory was 62.0 MB in the beginning and 69.0 MB in the end (delta: -7.0 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: 156]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 06:53:50,697 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 06:53:50,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 06:53:50,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 06:53:50,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 06:53:50,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 06:53:50,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 06:53:50,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 06:53:50,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 06:53:50,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 06:53:50,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 06:53:50,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 06:53:50,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 06:53:50,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 06:53:50,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 06:53:50,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 06:53:50,761 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 06:53:50,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 06:53:50,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 06:53:50,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 06:53:50,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 06:53:50,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 06:53:50,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 06:53:50,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 06:53:50,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 06:53:50,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 06:53:50,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 06:53:50,781 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 06:53:50,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 06:53:50,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 06:53:50,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 06:53:50,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 06:53:50,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 06:53:50,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 06:53:50,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 06:53:50,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 06:53:50,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 06:53:50,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 06:53:50,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 06:53:50,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 06:53:50,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 06:53:50,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 06:53:50,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 06:53:50,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 06:53:50,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 06:53:50,855 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 06:53:50,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 06:53:50,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 06:53:50,856 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 06:53:50,856 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 06:53:50,856 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 06:53:50,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 06:53:50,859 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 06:53:50,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 06:53:50,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 06:53:50,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 06:53:50,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 06:53:50,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 06:53:50,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 06:53:50,860 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 06:53:50,860 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 06:53:50,861 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 06:53:50,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 06:53:50,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 06:53:50,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 06:53:50,862 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 06:53:50,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 06:53:50,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 06:53:50,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:53:50,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 06:53:50,863 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 06:53:50,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 06:53:50,863 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 06:53:50,863 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 06:53:50,864 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 06:53:50,864 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 06:53:50,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 06:53:50,865 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_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d28fd66952ef369b293b454cf3bb59a162528dc [2021-10-13 06:53:51,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 06:53:51,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 06:53:51,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 06:53:51,322 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 06:53:51,323 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 06:53:51,324 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-13 06:53:51,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/1b2435b39/2f690d4bc8ab4a6f8f11bb6046e231f7/FLAGc01c234f5 [2021-10-13 06:53:51,928 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 06:53:51,929 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2021-10-13 06:53:51,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/1b2435b39/2f690d4bc8ab4a6f8f11bb6046e231f7/FLAGc01c234f5 [2021-10-13 06:53:52,256 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/data/1b2435b39/2f690d4bc8ab4a6f8f11bb6046e231f7 [2021-10-13 06:53:52,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 06:53:52,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 06:53:52,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 06:53:52,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 06:53:52,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 06:53:52,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:52,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc49317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52, skipping insertion in model container [2021-10-13 06:53:52,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:52,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 06:53:52,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:53:52,711 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_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-13 06:53:52,733 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:53:52,761 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-13 06:53:52,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 06:53:52,828 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_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-13 06:53:52,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:53:52,852 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 06:53:52,908 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_cf807f4d-c13b-4d19-b940-81b5712f178c/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c[13860,13873] [2021-10-13 06:53:52,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 06:53:52,941 INFO L208 MainTranslator]: Completed translation [2021-10-13 06:53:52,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52 WrapperNode [2021-10-13 06:53:52,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 06:53:52,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 06:53:52,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 06:53:52,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 06:53:52,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:52,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 06:53:53,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 06:53:53,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 06:53:53,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 06:53:53,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,095 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 06:53:53,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 06:53:53,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 06:53:53,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 06:53:53,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (1/1) ... [2021-10-13 06:53:53,138 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 06:53:53,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 06:53:53,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 06:53:53,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 06:53:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 06:53:53,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 06:53:53,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 06:53:53,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 06:53:55,370 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 06:53:55,370 INFO L299 CfgBuilder]: Removed 78 assume(true) statements. [2021-10-13 06:53:55,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:53:55 BoogieIcfgContainer [2021-10-13 06:53:55,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 06:53:55,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 06:53:55,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 06:53:55,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 06:53:55,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:53:52" (1/3) ... [2021-10-13 06:53:55,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9da97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:53:55, skipping insertion in model container [2021-10-13 06:53:55,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:53:52" (2/3) ... [2021-10-13 06:53:55,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9da97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:53:55, skipping insertion in model container [2021-10-13 06:53:55,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:53:55" (3/3) ... [2021-10-13 06:53:55,381 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2021-10-13 06:53:55,390 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 06:53:55,391 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-13 06:53:55,443 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 06:53:55,449 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 06:53:55,450 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-13 06:53:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 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) [2021-10-13 06:53:55,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-13 06:53:55,479 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:55,480 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:55,480 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:55,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:55,486 INFO L82 PathProgramCache]: Analyzing trace with hash 1390476085, now seen corresponding path program 1 times [2021-10-13 06:53:55,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:55,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [724233127] [2021-10-13 06:53:55,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:55,506 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:55,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:55,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:55,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 06:53:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:55,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 06:53:55,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:55,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:55,929 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:55,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [724233127] [2021-10-13 06:53:55,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [724233127] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:55,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:53:55,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 06:53:55,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367619605] [2021-10-13 06:53:55,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 06:53:55,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 06:53:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:53:55,959 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 1.5737704918032787) internal successors, (96), 64 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) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:55,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:55,995 INFO L93 Difference]: Finished difference Result 124 states and 185 transitions. [2021-10-13 06:53:55,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 06:53:55,997 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-13 06:53:55,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:56,009 INFO L225 Difference]: With dead ends: 124 [2021-10-13 06:53:56,009 INFO L226 Difference]: Without dead ends: 61 [2021-10-13 06:53:56,012 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 06:53:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2021-10-13 06:53:56,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2021-10-13 06:53:56,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.4482758620689655) internal successors, (84), 60 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:56,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 84 transitions. [2021-10-13 06:53:56,073 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 84 transitions. Word has length 18 [2021-10-13 06:53:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:56,074 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 84 transitions. [2021-10-13 06:53:56,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2021-10-13 06:53:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 06:53:56,076 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:56,077 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:56,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:56,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:56,290 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:56,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash -963834589, now seen corresponding path program 1 times [2021-10-13 06:53:56,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:56,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [570331880] [2021-10-13 06:53:56,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:56,296 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:56,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:56,298 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:56,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 06:53:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:56,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:53:56,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:56,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:56,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:56,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:56,681 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:56,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [570331880] [2021-10-13 06:53:56,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [570331880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:56,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:53:56,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:53:56,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333082194] [2021-10-13 06:53:56,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:53:56,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:56,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:53:56,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:56,688 INFO L87 Difference]: Start difference. First operand 61 states and 84 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:56,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:56,709 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2021-10-13 06:53:56,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 06:53:56,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-13 06:53:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:56,712 INFO L225 Difference]: With dead ends: 61 [2021-10-13 06:53:56,713 INFO L226 Difference]: Without dead ends: 31 [2021-10-13 06:53:56,714 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:56,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-13 06:53:56,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-10-13 06:53:56,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.4333333333333333) internal successors, (43), 30 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:56,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 43 transitions. [2021-10-13 06:53:56,732 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 43 transitions. Word has length 19 [2021-10-13 06:53:56,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:56,733 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 43 transitions. [2021-10-13 06:53:56,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:56,734 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 43 transitions. [2021-10-13 06:53:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:53:56,735 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:56,739 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:56,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:56,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:56,952 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:56,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:56,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1411810197, now seen corresponding path program 1 times [2021-10-13 06:53:56,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:56,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1871661727] [2021-10-13 06:53:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:56,954 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:56,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:56,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 06:53:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:57,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 06:53:57,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:57,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:57,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:57,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:57,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:57,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1871661727] [2021-10-13 06:53:57,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1871661727] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:57,323 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:53:57,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 06:53:57,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260125592] [2021-10-13 06:53:57,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 06:53:57,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:57,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 06:53:57,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:57,326 INFO L87 Difference]: Start difference. First operand 31 states and 43 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:57,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:57,382 INFO L93 Difference]: Finished difference Result 106 states and 154 transitions. [2021-10-13 06:53:57,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 06:53:57,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 06:53:57,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:57,385 INFO L225 Difference]: With dead ends: 106 [2021-10-13 06:53:57,386 INFO L226 Difference]: Without dead ends: 81 [2021-10-13 06:53:57,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 06:53:57,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-10-13 06:53:57,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 52. [2021-10-13 06:53:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 51 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2021-10-13 06:53:57,407 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 24 [2021-10-13 06:53:57,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:57,408 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2021-10-13 06:53:57,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2021-10-13 06:53:57,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 06:53:57,410 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:57,410 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:57,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:57,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:57,625 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:57,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:57,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1755761006, now seen corresponding path program 1 times [2021-10-13 06:53:57,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:57,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476796858] [2021-10-13 06:53:57,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:57,627 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:57,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:57,630 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:57,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 06:53:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 06:53:57,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 06:53:57,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 06:53:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:57,992 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 06:53:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 06:53:58,109 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 06:53:58,109 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1476796858] [2021-10-13 06:53:58,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1476796858] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 06:53:58,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 06:53:58,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-10-13 06:53:58,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316430467] [2021-10-13 06:53:58,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-13 06:53:58,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 06:53:58,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-13 06:53:58,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 06:53:58,112 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 06:53:58,429 INFO L93 Difference]: Finished difference Result 506 states and 780 transitions. [2021-10-13 06:53:58,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-13 06:53:58,430 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-13 06:53:58,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 06:53:58,434 INFO L225 Difference]: With dead ends: 506 [2021-10-13 06:53:58,435 INFO L226 Difference]: Without dead ends: 460 [2021-10-13 06:53:58,436 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 144.7ms TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-13 06:53:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-10-13 06:53:58,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 130. [2021-10-13 06:53:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 129 states have (on average 1.449612403100775) internal successors, (187), 129 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:58,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2021-10-13 06:53:58,472 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 24 [2021-10-13 06:53:58,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 06:53:58,473 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2021-10-13 06:53:58,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 06:53:58,474 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2021-10-13 06:53:58,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 06:53:58,477 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 06:53:58,478 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 06:53:58,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 06:53:58,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:53:58,690 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 06:53:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 06:53:58,691 INFO L82 PathProgramCache]: Analyzing trace with hash 120698128, now seen corresponding path program 1 times [2021-10-13 06:53:58,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 06:53:58,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981370776] [2021-10-13 06:53:58,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 06:53:58,692 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 06:53:58,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 06:53:58,695 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 06:53:58,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 06:53:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:53:59,681 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 06:54:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 06:54:00,937 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-13 06:54:00,938 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 06:54:00,939 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:54:00,940 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:54:00,941 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 06:54:00,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 06:54:01,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 06:54:01,164 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 06:54:01,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:54:01 BoogieIcfgContainer [2021-10-13 06:54:01,285 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 06:54:01,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 06:54:01,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 06:54:01,286 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 06:54:01,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:53:55" (3/4) ... [2021-10-13 06:54:01,290 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 06:54:01,362 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 06:54:01,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 06:54:01,364 INFO L168 Benchmark]: Toolchain (without parser) took 9095.06 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 40.4 MB in the beginning and 57.6 MB in the end (delta: -17.1 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,364 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 06:54:01,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.34 ms. Allocated memory is still 75.5 MB. Free memory was 40.2 MB in the beginning and 44.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.10 ms. Allocated memory is still 75.5 MB. Free memory was 44.4 MB in the beginning and 41.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,365 INFO L168 Benchmark]: Boogie Preprocessor took 75.15 ms. Allocated memory is still 75.5 MB. Free memory was 41.7 MB in the beginning and 39.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,366 INFO L168 Benchmark]: RCFGBuilder took 2244.28 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 39.6 MB in the beginning and 70.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,366 INFO L168 Benchmark]: TraceAbstraction took 5910.48 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 69.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,367 INFO L168 Benchmark]: Witness Printer took 76.73 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 57.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 06:54:01,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 57.6 MB in the end (delta: 63.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 672.34 ms. Allocated memory is still 75.5 MB. Free memory was 40.2 MB in the beginning and 44.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 6.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.10 ms. Allocated memory is still 75.5 MB. Free memory was 44.4 MB in the beginning and 41.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.15 ms. Allocated memory is still 75.5 MB. Free memory was 41.7 MB in the beginning and 39.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2244.28 ms. Allocated memory was 75.5 MB in the beginning and 102.8 MB in the end (delta: 27.3 MB). Free memory was 39.6 MB in the beginning and 70.4 MB in the end (delta: -30.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5910.48 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 69.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 40.0 MB. Max. memory is 16.1 GB. * Witness Printer took 76.73 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 57.6 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 635]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L532] int cleanupTimeShifts = 4; [L679] int pumpRunning = 0; [L680] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L608] int retValue_acc ; [L609] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L523] int retValue_acc ; [L526] retValue_acc = 1 [L527] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L615] tmp = valid_product() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L810] int splverifierCounter ; [L811] int tmp ; [L812] int tmp___0 ; [L813] int tmp___1 ; [L814] int tmp___2 ; [L817] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L819] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L827] tmp = __VERIFIER_nondet_int() [L829] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L837] tmp___0 = __VERIFIER_nondet_int() [L839] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L847] tmp___2 = __VERIFIER_nondet_int() [L849] COND TRUE \read(tmp___2) [L804] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L686] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND TRUE \read(systemActive) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; [L643] int tmp___0 ; [L644] int tmp___1 ; [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L648] tmp = isMethaneLevelCritical() [L650] COND FALSE !(\read(tmp)) [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L654] tmp___0 = getWaterLevel() [L656] COND TRUE tmp___0 == 2 [L741] int retValue_acc ; [L744] retValue_acc = pumpRunning [L745] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp___1 = isPumpRunning() [L660] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L635] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 635]: 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: 635]: 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, 65 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 5721.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 24.6ms, AutomataDifference: 489.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 240 SDtfs, 583 SDslu, 463 SDs, 0 SdLazy, 90 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 169.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 105.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 359 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 121.9ms SsaConstructionTime, 1356.0ms SatisfiabilityAnalysisTime, 781.9ms InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 4 NumberOfNonLiveVariables, 791 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-13 06:54:01,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf807f4d-c13b-4d19-b940-81b5712f178c/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...