./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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 083929d0ff0bd9151d75d230540032d7b88e56ba ..................................................................................................................................................................................................................................................................................................................................................... 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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 083929d0ff0bd9151d75d230540032d7b88e56ba ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:52:25,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:52:25,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:52:25,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:52:25,749 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:52:25,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:52:25,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:52:25,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:52:25,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:52:25,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:52:25,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:52:25,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:52:25,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:52:25,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:52:25,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:52:25,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:52:25,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:52:25,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:52:25,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:52:25,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:52:25,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:52:25,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:52:25,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:52:25,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:52:25,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:52:25,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:52:25,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:52:25,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:52:25,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:52:25,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:52:25,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:52:25,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:52:25,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:52:25,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:52:25,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:52:25,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:52:25,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:52:25,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:52:25,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:52:25,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:52:25,797 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:52:25,798 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:52:25,823 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:52:25,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:52:25,824 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:52:25,825 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:52:25,825 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:52:25,825 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:52:25,825 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:52:25,826 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:52:25,826 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:52:25,826 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:52:25,826 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:52:25,826 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:52:25,827 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:52:25,827 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:52:25,827 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:52:25,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:52:25,828 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:52:25,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:52:25,829 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:52:25,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:52:25,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:52:25,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:52:25,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:52:25,830 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:52:25,830 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:52:25,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:52:25,830 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:52:25,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:52:25,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:52:25,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:52:25,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:25,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:52:25,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:52:25,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:52:25,832 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:52:25,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:52:25,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:52:25,833 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:52:25,833 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:52:25,833 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 083929d0ff0bd9151d75d230540032d7b88e56ba [2021-10-13 07:52:26,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:52:26,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:52:26,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:52:26,149 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:52:26,149 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:52:26,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-10-13 07:52:26,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/7db982b72/3ceb5149c3ea4dff863d5a7be36359da/FLAG259841534 [2021-10-13 07:52:26,856 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:52:26,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-10-13 07:52:26,874 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/7db982b72/3ceb5149c3ea4dff863d5a7be36359da/FLAG259841534 [2021-10-13 07:52:27,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/7db982b72/3ceb5149c3ea4dff863d5a7be36359da [2021-10-13 07:52:27,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:52:27,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:52:27,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:27,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:52:27,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:52:27,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59f4641d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27, skipping insertion in model container [2021-10-13 07:52:27,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:52:27,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:52:27,411 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-10-13 07:52:27,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:27,570 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:52:27,608 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-10-13 07:52:27,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:52:27,702 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:52:27,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27 WrapperNode [2021-10-13 07:52:27,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:52:27,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:27,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:52:27,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:52:27,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,732 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:52:27,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:52:27,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:52:27,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:52:27,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:52:27,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:52:27,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:52:27,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:52:27,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (1/1) ... [2021-10-13 07:52:27,935 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:52:27,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:52:27,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:52:28,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:52:28,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:52:28,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:52:28,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:52:28,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:52:36,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:52:36,179 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:52:36,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:36 BoogieIcfgContainer [2021-10-13 07:52:36,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:52:36,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:52:36,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:52:36,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:52:36,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:52:27" (1/3) ... [2021-10-13 07:52:36,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d165dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:36, skipping insertion in model container [2021-10-13 07:52:36,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:52:27" (2/3) ... [2021-10-13 07:52:36,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d165dae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:52:36, skipping insertion in model container [2021-10-13 07:52:36,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:52:36" (3/3) ... [2021-10-13 07:52:36,193 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2021-10-13 07:52:36,204 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:52:36,204 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:52:36,251 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:52:36,258 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 07:52:36,258 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:52:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 07:52:36,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:52:36,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,277 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:52:36,277 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:52:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,283 INFO L82 PathProgramCache]: Analyzing trace with hash 886109419, now seen corresponding path program 1 times [2021-10-13 07:52:36,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024628237] [2021-10-13 07:52:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:36,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:36,505 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 07:52:36,505 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:36,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024628237] [2021-10-13 07:52:36,506 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024628237] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:52:36,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:52:36,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:52:36,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436645205] [2021-10-13 07:52:36,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:52:36,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:52:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:52:36,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:52:36,529 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 07:52:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:52:36,646 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2021-10-13 07:52:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:52:36,648 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-10-13 07:52:36,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:52:36,656 INFO L225 Difference]: With dead ends: 29 [2021-10-13 07:52:36,656 INFO L226 Difference]: Without dead ends: 15 [2021-10-13 07:52:36,659 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:52:36,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-13 07:52:36,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-10-13 07:52:36,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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 07:52:36,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-13 07:52:36,689 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-10-13 07:52:36,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:52:36,689 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-13 07:52:36,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 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 07:52:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-13 07:52:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:52:36,690 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:52:36,691 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1] [2021-10-13 07:52:36,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:52:36,691 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:52:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:52:36,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1289279593, now seen corresponding path program 1 times [2021-10-13 07:52:36,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:52:36,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013469834] [2021-10-13 07:52:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:36,693 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:52:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:37,632 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:52:37,633 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:52:37,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013469834] [2021-10-13 07:52:37,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013469834] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:52:37,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572965282] [2021-10-13 07:52:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:52:37,634 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:52:37,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:52:37,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:52:37,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:52:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:52:37,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-13 07:52:37,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:09,715 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:54:09,716 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [550429309] [2021-10-13 07:54:09,738 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:54:09,738 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:54:09,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:54:09,751 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:54:09,752 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:54:09,786 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,788 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:54:09,789 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:54:09,791 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:54:09,792 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,793 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:54:09,795 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:54:09,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:54:09,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:54:09,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:54:09,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 07:54:09,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:54:09,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:54:09,856 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:54:09,862 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:54:09,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:54:09,896 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:54:09,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:54:09,897 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:54:09,935 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:54:10,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:54:10,116 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:54:10,121 INFO L168 Benchmark]: Toolchain (without parser) took 103033.90 ms. Allocated memory was 109.1 MB in the beginning and 1.6 GB in the end (delta: 1.5 GB). Free memory was 70.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 365.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,122 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:54:10,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 607.38 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 67.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,124 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.03 ms. Allocated memory is still 109.1 MB. Free memory was 67.7 MB in the beginning and 59.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,124 INFO L168 Benchmark]: Boogie Preprocessor took 114.93 ms. Allocated memory is still 109.1 MB. Free memory was 59.7 MB in the beginning and 55.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,125 INFO L168 Benchmark]: RCFGBuilder took 8254.85 ms. Allocated memory was 109.1 MB in the beginning and 327.2 MB in the end (delta: 218.1 MB). Free memory was 55.1 MB in the beginning and 236.3 MB in the end (delta: -181.2 MB). Peak memory consumption was 157.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,126 INFO L168 Benchmark]: TraceAbstraction took 93936.51 ms. Allocated memory was 327.2 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 235.2 MB in the beginning and 1.2 GB in the end (delta: -973.1 MB). Peak memory consumption was 313.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:54:10,131 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 607.38 ms. Allocated memory is still 109.1 MB. Free memory was 69.9 MB in the beginning and 67.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.03 ms. Allocated memory is still 109.1 MB. Free memory was 67.7 MB in the beginning and 59.7 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.93 ms. Allocated memory is still 109.1 MB. Free memory was 59.7 MB in the beginning and 55.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8254.85 ms. Allocated memory was 109.1 MB in the beginning and 327.2 MB in the end (delta: 218.1 MB). Free memory was 55.1 MB in the beginning and 236.3 MB in the end (delta: -181.2 MB). Peak memory consumption was 157.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 93936.51 ms. Allocated memory was 327.2 MB in the beginning and 1.6 GB in the end (delta: 1.3 GB). Free memory was 235.2 MB in the beginning and 1.2 GB in the end (delta: -973.1 MB). Peak memory consumption was 313.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:54:10,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:54:13,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:54:13,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:54:13,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:54:13,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:54:13,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:54:13,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:54:13,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:54:13,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:54:13,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:54:13,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:54:13,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:54:13,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:54:13,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:54:13,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:54:13,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:54:13,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:54:13,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:54:13,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:54:13,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:54:13,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:54:13,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:54:13,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:54:13,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:54:13,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:54:13,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:54:13,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:54:13,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:54:13,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:54:13,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:54:13,209 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:54:13,210 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:54:13,212 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:54:13,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:54:13,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:54:13,216 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:54:13,217 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:54:13,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:54:13,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:54:13,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:54:13,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:54:13,221 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:54:13,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:54:13,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:54:13,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:54:13,281 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:54:13,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:54:13,281 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:54:13,281 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:54:13,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:54:13,282 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:54:13,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:54:13,285 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:54:13,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:54:13,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:54:13,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:54:13,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:54:13,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:54:13,287 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:54:13,287 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:54:13,287 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:54:13,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:54:13,288 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:54:13,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:54:13,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:54:13,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:54:13,289 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:54:13,289 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:54:13,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:13,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:54:13,290 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:54:13,290 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:54:13,290 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:54:13,290 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:54:13,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:54:13,291 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:54:13,291 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:54:13,291 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 083929d0ff0bd9151d75d230540032d7b88e56ba [2021-10-13 07:54:13,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:54:13,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:54:13,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:54:13,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:54:13,763 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:54:13,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-10-13 07:54:13,844 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/bf3d3eeb3/42105885d0fb49df9df8b397583bd813/FLAG42b7528fc [2021-10-13 07:54:14,684 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:54:14,685 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c [2021-10-13 07:54:14,700 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/bf3d3eeb3/42105885d0fb49df9df8b397583bd813/FLAG42b7528fc [2021-10-13 07:54:14,879 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/data/bf3d3eeb3/42105885d0fb49df9df8b397583bd813 [2021-10-13 07:54:14,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:54:14,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:54:14,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:14,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:54:14,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:54:14,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:14" (1/1) ... [2021-10-13 07:54:14,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@504bd165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:14, skipping insertion in model container [2021-10-13 07:54:14,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:54:14" (1/1) ... [2021-10-13 07:54:14,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:54:14,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:54:15,315 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-10-13 07:54:15,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:15,594 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:54:15,667 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_fcb4529b-c344-451e-9ea3-60bcb1c65da2/sv-benchmarks/c/eca-rers2012/Problem10_label01.c[6098,6111] [2021-10-13 07:54:15,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:54:15,809 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:54:15,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15 WrapperNode [2021-10-13 07:54:15,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:54:15,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:15,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:54:15,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:54:15,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:15,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:15,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:54:15,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:54:15,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:54:15,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:54:15,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:15,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:15,967 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:15,967 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:16,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:16,052 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:16,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:16,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:54:16,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:54:16,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:54:16,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:54:16,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (1/1) ... [2021-10-13 07:54:16,098 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:54:16,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:16,129 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:54:16,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:54:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:54:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:54:16,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:54:16,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:54:19,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:54:19,913 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:54:19,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:19 BoogieIcfgContainer [2021-10-13 07:54:19,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:54:19,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:54:19,920 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:54:19,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:54:19,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:54:14" (1/3) ... [2021-10-13 07:54:19,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df6edd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:19, skipping insertion in model container [2021-10-13 07:54:19,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:54:15" (2/3) ... [2021-10-13 07:54:19,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7df6edd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:54:19, skipping insertion in model container [2021-10-13 07:54:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:19" (3/3) ... [2021-10-13 07:54:19,929 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label01.c [2021-10-13 07:54:19,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:54:19,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:54:20,021 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:54:20,028 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 07:54:20,028 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:54:20,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 07:54:20,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-10-13 07:54:20,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:20,065 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:54:20,066 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:20,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:20,073 INFO L82 PathProgramCache]: Analyzing trace with hash -92557335, now seen corresponding path program 1 times [2021-10-13 07:54:20,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:54:20,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1749703852] [2021-10-13 07:54:20,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:20,094 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:54:20,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:54:20,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:54:20,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:54:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:20,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:54:20,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:20,711 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 07:54:20,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:54:21,070 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 07:54:21,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:54:21,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1749703852] [2021-10-13 07:54:21,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1749703852] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:54:21,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:54:21,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:54:21,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140311599] [2021-10-13 07:54:21,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:54:21,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:54:21,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:54:21,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:54:21,105 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:54:26,691 INFO L93 Difference]: Finished difference Result 694 states and 1246 transitions. [2021-10-13 07:54:26,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:54:26,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2021-10-13 07:54:26,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:54:26,723 INFO L225 Difference]: With dead ends: 694 [2021-10-13 07:54:26,723 INFO L226 Difference]: Without dead ends: 421 [2021-10-13 07:54:26,727 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:54:26,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-13 07:54:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-13 07:54:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.4785714285714286) internal successors, (621), 420 states have internal predecessors, (621), 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 07:54:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 621 transitions. [2021-10-13 07:54:26,811 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 621 transitions. Word has length 53 [2021-10-13 07:54:26,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:54:26,812 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 621 transitions. [2021-10-13 07:54:26,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:54:26,813 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 621 transitions. [2021-10-13 07:54:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-10-13 07:54:26,826 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:26,827 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:54:26,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:54:27,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:54:27,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:27,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:27,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1184793236, now seen corresponding path program 1 times [2021-10-13 07:54:27,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:54:27,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2061838346] [2021-10-13 07:54:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:27,034 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:54:27,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:54:27,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:54:27,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:54:27,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:27,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:54:27,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:29,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:54:32,585 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:32,585 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:54:32,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2061838346] [2021-10-13 07:54:32,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2061838346] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:54:32,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:54:32,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:54:32,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028963820] [2021-10-13 07:54:32,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:54:32,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:54:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:54:32,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:54:32,590 INFO L87 Difference]: Start difference. First operand 421 states and 621 transitions. Second operand has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 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 07:54:38,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:54:38,704 INFO L93 Difference]: Finished difference Result 1129 states and 1654 transitions. [2021-10-13 07:54:38,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:54:38,705 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 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 168 [2021-10-13 07:54:38,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:54:38,709 INFO L225 Difference]: With dead ends: 1129 [2021-10-13 07:54:38,709 INFO L226 Difference]: Without dead ends: 710 [2021-10-13 07:54:38,711 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 129.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:54:38,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2021-10-13 07:54:38,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 699. [2021-10-13 07:54:38,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 698 states have (on average 1.316618911174785) internal successors, (919), 698 states have internal predecessors, (919), 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 07:54:38,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 919 transitions. [2021-10-13 07:54:38,751 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 919 transitions. Word has length 168 [2021-10-13 07:54:38,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:54:38,752 INFO L470 AbstractCegarLoop]: Abstraction has 699 states and 919 transitions. [2021-10-13 07:54:38,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.8) internal successors, (244), 4 states have internal predecessors, (244), 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 07:54:38,753 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 919 transitions. [2021-10-13 07:54:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-10-13 07:54:38,761 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:54:38,762 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:54:38,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:54:38,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:54:38,977 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:54:38,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:54:38,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1991031425, now seen corresponding path program 1 times [2021-10-13 07:54:38,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:54:38,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832021150] [2021-10-13 07:54:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:38,982 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:54:38,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:54:38,983 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:54:39,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:54:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:39,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:54:39,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:43,349 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 101 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:43,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:54:53,633 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 101 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:53,633 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:54:53,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832021150] [2021-10-13 07:54:53,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832021150] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:54:53,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1481078573] [2021-10-13 07:54:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:53,635 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:54:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:54:53,657 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:54:53,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-13 07:54:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:54:54,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:54:54,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:54:57,564 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:57,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:54:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 115 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:54:59,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1481078573] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:54:59,997 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633059085] [2021-10-13 07:54:59,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:54:59,997 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:54:59,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:54:59,998 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:55:00,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-13 07:55:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:01,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:55:01,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:03,745 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:03,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:06,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633059085] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:55:06,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:55:06,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [4, 4, 8, 7] total 19 [2021-10-13 07:55:06,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071117834] [2021-10-13 07:55:06,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:55:06,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:55:06,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:55:06,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:55:06,288 INFO L87 Difference]: Start difference. First operand 699 states and 919 transitions. Second operand has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 6 states have internal predecessors, (239), 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 07:55:10,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:55:10,388 INFO L93 Difference]: Finished difference Result 1411 states and 1896 transitions. [2021-10-13 07:55:10,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:55:10,389 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 6 states have internal predecessors, (239), 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 234 [2021-10-13 07:55:10,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:55:10,395 INFO L225 Difference]: With dead ends: 1411 [2021-10-13 07:55:10,395 INFO L226 Difference]: Without dead ends: 853 [2021-10-13 07:55:10,397 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1400 GetRequests, 1381 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1124.8ms TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2021-10-13 07:55:10,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2021-10-13 07:55:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 838. [2021-10-13 07:55:10,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2759856630824373) internal successors, (1068), 837 states have internal predecessors, (1068), 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 07:55:10,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1068 transitions. [2021-10-13 07:55:10,426 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1068 transitions. Word has length 234 [2021-10-13 07:55:10,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:55:10,426 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1068 transitions. [2021-10-13 07:55:10,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.142857142857146) internal successors, (239), 6 states have internal predecessors, (239), 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 07:55:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1068 transitions. [2021-10-13 07:55:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-10-13 07:55:10,434 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:55:10,435 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:55:10,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:55:10,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:55:10,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-13 07:55:11,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:55:11,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:55:11,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:55:11,044 INFO L82 PathProgramCache]: Analyzing trace with hash -344714387, now seen corresponding path program 1 times [2021-10-13 07:55:11,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:55:11,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519855820] [2021-10-13 07:55:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:55:11,046 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:55:11,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:55:11,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:55:11,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:55:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:12,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:55:12,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:13,719 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 125 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-13 07:55:13,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:18,486 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-10-13 07:55:18,487 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:55:18,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519855820] [2021-10-13 07:55:18,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519855820] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:55:18,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:55:18,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:55:18,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068368030] [2021-10-13 07:55:18,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:55:18,489 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:55:18,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:55:18,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:55:18,489 INFO L87 Difference]: Start difference. First operand 838 states and 1068 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 07:55:54,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:55:54,590 INFO L93 Difference]: Finished difference Result 1971 states and 2561 transitions. [2021-10-13 07:55:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:55:54,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 243 [2021-10-13 07:55:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:55:54,600 INFO L225 Difference]: With dead ends: 1971 [2021-10-13 07:55:54,601 INFO L226 Difference]: Without dead ends: 1255 [2021-10-13 07:55:54,602 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 200.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:55:54,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2021-10-13 07:55:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 838. [2021-10-13 07:55:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.2700119474313023) internal successors, (1063), 837 states have internal predecessors, (1063), 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 07:55:54,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1063 transitions. [2021-10-13 07:55:54,628 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1063 transitions. Word has length 243 [2021-10-13 07:55:54,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:55:54,629 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1063 transitions. [2021-10-13 07:55:54,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 3 states have internal predecessors, (212), 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 07:55:54,629 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1063 transitions. [2021-10-13 07:55:54,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-10-13 07:55:54,634 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:55:54,634 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:55:54,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:55:54,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:55:54,851 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:55:54,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:55:54,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1855537811, now seen corresponding path program 1 times [2021-10-13 07:55:54,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:55:54,854 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465778515] [2021-10-13 07:55:54,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:55:54,854 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:55:54,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:55:54,856 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:55:54,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:55:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:55:56,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:55:56,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:55:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:57,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:55:58,517 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:55:58,517 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:55:58,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465778515] [2021-10-13 07:55:58,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [465778515] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:55:58,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:55:58,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:55:58,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987592770] [2021-10-13 07:55:58,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:55:58,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:55:58,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:55:58,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:55:58,521 INFO L87 Difference]: Start difference. First operand 838 states and 1063 transitions. Second operand has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 07:56:02,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:56:02,501 INFO L93 Difference]: Finished difference Result 2230 states and 2997 transitions. [2021-10-13 07:56:02,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:56:02,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 279 [2021-10-13 07:56:02,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:56:02,511 INFO L225 Difference]: With dead ends: 2230 [2021-10-13 07:56:02,512 INFO L226 Difference]: Without dead ends: 1533 [2021-10-13 07:56:02,513 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:56:02,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-13 07:56:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2021-10-13 07:56:02,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.2702349869451697) internal successors, (1946), 1532 states have internal predecessors, (1946), 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 07:56:02,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1946 transitions. [2021-10-13 07:56:02,577 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1946 transitions. Word has length 279 [2021-10-13 07:56:02,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:56:02,578 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 1946 transitions. [2021-10-13 07:56:02,578 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 98.75) internal successors, (395), 4 states have internal predecessors, (395), 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 07:56:02,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1946 transitions. [2021-10-13 07:56:02,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2021-10-13 07:56:02,587 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:56:02,587 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:56:02,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:56:02,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:56:02,805 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:56:02,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:56:02,807 INFO L82 PathProgramCache]: Analyzing trace with hash 4622868, now seen corresponding path program 1 times [2021-10-13 07:56:02,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:56:02,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456622728] [2021-10-13 07:56:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:56:02,809 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:56:02,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:56:02,810 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:56:02,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:56:04,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:56:04,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:56:04,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:56:06,344 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 152 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:56:06,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:56:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-13 07:56:07,777 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:56:07,777 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456622728] [2021-10-13 07:56:07,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456622728] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:56:07,778 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:56:07,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-13 07:56:07,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85017321] [2021-10-13 07:56:07,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:56:07,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:56:07,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:56:07,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:56:07,781 INFO L87 Difference]: Start difference. First operand 1533 states and 1946 transitions. Second operand has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 07:56:10,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:56:10,721 INFO L93 Difference]: Finished difference Result 3079 states and 3955 transitions. [2021-10-13 07:56:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:56:10,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 348 [2021-10-13 07:56:10,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:56:10,730 INFO L225 Difference]: With dead ends: 3079 [2021-10-13 07:56:10,731 INFO L226 Difference]: Without dead ends: 1533 [2021-10-13 07:56:10,733 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 696 GetRequests, 690 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 71.5ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:56:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2021-10-13 07:56:10,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1533. [2021-10-13 07:56:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1533 states, 1532 states have (on average 1.2656657963446476) internal successors, (1939), 1532 states have internal predecessors, (1939), 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 07:56:10,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1533 states to 1533 states and 1939 transitions. [2021-10-13 07:56:10,779 INFO L78 Accepts]: Start accepts. Automaton has 1533 states and 1939 transitions. Word has length 348 [2021-10-13 07:56:10,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:56:10,780 INFO L470 AbstractCegarLoop]: Abstraction has 1533 states and 1939 transitions. [2021-10-13 07:56:10,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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 07:56:10,781 INFO L276 IsEmpty]: Start isEmpty. Operand 1533 states and 1939 transitions. [2021-10-13 07:56:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-10-13 07:56:10,785 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:56:10,785 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:56:10,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 07:56:11,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:56:11,005 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:56:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:56:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1255263891, now seen corresponding path program 1 times [2021-10-13 07:56:11,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:56:11,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1776593753] [2021-10-13 07:56:11,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:56:11,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:56:11,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:56:11,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:56:11,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 07:56:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:56:12,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:56:12,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:56:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 284 proven. 72 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:56:14,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:56:28,526 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 284 proven. 72 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:56:28,526 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:56:28,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1776593753] [2021-10-13 07:56:28,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1776593753] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:56:28,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [473731848] [2021-10-13 07:56:28,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:56:28,527 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:56:28,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:56:28,529 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:56:28,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-13 07:56:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:56:31,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:56:31,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:56:32,367 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-13 07:56:32,367 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:56:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 152 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2021-10-13 07:56:33,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [473731848] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:56:33,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:56:33,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3, 3] total 8 [2021-10-13 07:56:33,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421044024] [2021-10-13 07:56:33,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:56:33,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:56:33,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:56:33,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:56:33,042 INFO L87 Difference]: Start difference. First operand 1533 states and 1939 transitions. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 07:56:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:56:36,980 INFO L93 Difference]: Finished difference Result 3342 states and 4325 transitions. [2021-10-13 07:56:36,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:56:36,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 352 [2021-10-13 07:56:36,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:56:36,992 INFO L225 Difference]: With dead ends: 3342 [2021-10-13 07:56:36,992 INFO L226 Difference]: Without dead ends: 1950 [2021-10-13 07:56:36,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1404 GetRequests, 1398 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 624.6ms TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:56:36,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2021-10-13 07:56:37,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1672. [2021-10-13 07:56:37,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1671 states have (on average 1.2268102932375824) internal successors, (2050), 1671 states have internal predecessors, (2050), 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 07:56:37,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2050 transitions. [2021-10-13 07:56:37,043 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2050 transitions. Word has length 352 [2021-10-13 07:56:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:56:37,044 INFO L470 AbstractCegarLoop]: Abstraction has 1672 states and 2050 transitions. [2021-10-13 07:56:37,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 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 07:56:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2050 transitions. [2021-10-13 07:56:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-10-13 07:56:37,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:56:37,049 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:56:37,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:56:37,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:56:37,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:56:37,459 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:56:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:56:37,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1130888959, now seen corresponding path program 1 times [2021-10-13 07:56:37,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:56:37,461 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1451414198] [2021-10-13 07:56:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:56:37,461 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:56:37,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:56:37,464 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:56:37,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:56:39,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:56:39,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:56:39,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:56:40,759 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 152 proven. 177 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-10-13 07:56:40,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:56:51,050 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-10-13 07:56:51,051 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:56:51,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1451414198] [2021-10-13 07:56:51,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1451414198] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:56:51,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:56:51,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:56:51,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224621409] [2021-10-13 07:56:51,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:56:51,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:56:51,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:56:51,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:56:51,054 INFO L87 Difference]: Start difference. First operand 1672 states and 2050 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 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 07:58:08,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:58:08,806 INFO L93 Difference]: Finished difference Result 5149 states and 6329 transitions. [2021-10-13 07:58:08,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:58:08,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 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 354 [2021-10-13 07:58:08,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:58:08,827 INFO L225 Difference]: With dead ends: 5149 [2021-10-13 07:58:08,828 INFO L226 Difference]: Without dead ends: 3618 [2021-10-13 07:58:08,830 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 330.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:58:08,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3618 states. [2021-10-13 07:58:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3618 to 2784. [2021-10-13 07:58:08,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2784 states, 2783 states have (on average 1.2127200862378729) internal successors, (3375), 2783 states have internal predecessors, (3375), 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 07:58:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 3375 transitions. [2021-10-13 07:58:08,912 INFO L78 Accepts]: Start accepts. Automaton has 2784 states and 3375 transitions. Word has length 354 [2021-10-13 07:58:08,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:58:08,913 INFO L470 AbstractCegarLoop]: Abstraction has 2784 states and 3375 transitions. [2021-10-13 07:58:08,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 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 07:58:08,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2784 states and 3375 transitions. [2021-10-13 07:58:08,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-10-13 07:58:08,931 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:58:08,932 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:58:08,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:58:09,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:58:09,144 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:58:09,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:58:09,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1168285933, now seen corresponding path program 1 times [2021-10-13 07:58:09,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:58:09,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000431582] [2021-10-13 07:58:09,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:09,146 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:58:09,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:58:09,146 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:58:09,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:58:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:11,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:58:11,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:12,690 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 288 proven. 76 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:58:12,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:42,302 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 288 proven. 76 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:58:42,302 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:58:42,302 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000431582] [2021-10-13 07:58:42,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000431582] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:42,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [407441877] [2021-10-13 07:58:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:42,303 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:58:42,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:58:42,305 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:58:42,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 07:58:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:46,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:58:46,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:58:50,937 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 288 proven. 51 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:58:50,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:58:53,514 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 288 proven. 51 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:58:53,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [407441877] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:58:53,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243652011] [2021-10-13 07:58:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:58:53,515 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:58:53,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:58:53,516 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:58:53,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 07:58:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:58:57,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:58:57,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:01,073 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:59:01,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-10-13 07:59:04,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243652011] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:59:04,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:59:04,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [3, 3, 7, 6] total 17 [2021-10-13 07:59:04,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44761948] [2021-10-13 07:59:04,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:59:04,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:59:04,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:59:04,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-10-13 07:59:04,708 INFO L87 Difference]: Start difference. First operand 2784 states and 3375 transitions. Second operand has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 5 states have internal predecessors, (293), 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 07:59:10,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:59:10,024 INFO L93 Difference]: Finished difference Result 5481 states and 6659 transitions. [2021-10-13 07:59:10,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:59:10,029 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 5 states have internal predecessors, (293), 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 363 [2021-10-13 07:59:10,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:59:10,040 INFO L225 Difference]: With dead ends: 5481 [2021-10-13 07:59:10,040 INFO L226 Difference]: Without dead ends: 2838 [2021-10-13 07:59:10,043 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2175 GetRequests, 2157 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1715.6ms TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-10-13 07:59:10,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2838 states. [2021-10-13 07:59:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2838 to 2645. [2021-10-13 07:59:10,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.2023449319213313) internal successors, (3179), 2644 states have internal predecessors, (3179), 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 07:59:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 3179 transitions. [2021-10-13 07:59:10,132 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 3179 transitions. Word has length 363 [2021-10-13 07:59:10,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:59:10,133 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 3179 transitions. [2021-10-13 07:59:10,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.833333333333336) internal successors, (293), 5 states have internal predecessors, (293), 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 07:59:10,133 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 3179 transitions. [2021-10-13 07:59:10,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-10-13 07:59:10,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:59:10,140 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:59:10,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:10,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-13 07:59:10,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:59:10,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:59:10,759 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:59:10,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:59:10,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1431726516, now seen corresponding path program 1 times [2021-10-13 07:59:10,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:59:10,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [3339786] [2021-10-13 07:59:10,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:10,761 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:59:10,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:59:10,762 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:59:10,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:59:14,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:14,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:59:14,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:15,439 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 309 proven. 97 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:59:15,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:59:45,379 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 309 proven. 97 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 07:59:45,380 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:59:45,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [3339786] [2021-10-13 07:59:45,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [3339786] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:59:45,380 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [570894952] [2021-10-13 07:59:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:59:45,381 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:59:45,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:59:45,381 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:59:45,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 07:59:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:59:50,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:59:50,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:59:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 69 proven. 388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:59:54,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:09,378 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 148 proven. 309 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:00:09,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [570894952] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:09,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144013246] [2021-10-13 08:00:09,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:00:09,379 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:00:09,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:00:09,380 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:00:09,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-13 08:00:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:00:14,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 08:00:14,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:00:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 309 proven. 97 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 08:00:19,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:00:58,001 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 388 proven. 18 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-13 08:00:58,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144013246] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:00:58,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:00:58,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 6, 6, 4, 4] total 15 [2021-10-13 08:00:58,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363929040] [2021-10-13 08:00:58,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 08:00:58,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:00:58,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 08:00:58,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2021-10-13 08:00:58,007 INFO L87 Difference]: Start difference. First operand 2645 states and 3179 transitions. Second operand has 16 states, 16 states have (on average 83.125) internal successors, (1330), 15 states have internal predecessors, (1330), 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 08:04:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:04:58,378 INFO L93 Difference]: Finished difference Result 8171 states and 9827 transitions. [2021-10-13 08:04:58,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-10-13 08:04:58,388 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 83.125) internal successors, (1330), 15 states have internal predecessors, (1330), 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 384 [2021-10-13 08:04:58,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:04:58,388 INFO L225 Difference]: With dead ends: 8171 [2021-10-13 08:04:58,389 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:04:58,395 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2326 GetRequests, 2285 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 18614.8ms TimeCoverageRelationStatistics Valid=417, Invalid=1389, Unknown=0, NotChecked=0, Total=1806 [2021-10-13 08:04:58,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:04:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:04:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:04:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:04:58,396 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 384 [2021-10-13 08:04:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:04:58,396 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:04:58,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 83.125) internal successors, (1330), 15 states have internal predecessors, (1330), 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 08:04:58,397 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:04:58,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:04:58,400 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:04:58,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:58,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:58,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-13 08:04:59,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:04:59,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:04:59,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:04:59,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:05:00,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:05:06,062 WARN L207 SmtUtils]: Spent 6.01 s on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2021-10-13 08:05:12,308 WARN L207 SmtUtils]: Spent 6.24 s on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-13 08:05:12,312 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,324 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 08:05:12,325 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 08:05:12,326 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 08:05:12,326 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 08:05:12,328 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 08:05:12,328 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-13 08:05:12,328 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-13 08:05:12,328 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,329 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 08:05:12,330 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-13 08:05:12,331 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,332 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-13 08:05:12,333 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 08:05:12,334 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 08:05:12,335 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~a12~0)) (.cse1 (= (_ bv14 32) ~a4~0)) (.cse7 (= (_ bv0 32) ~a10~0)) (.cse9 (bvsdiv ~a1~0 (_ bv5 32)))) (let ((.cse4 (bvslt (_ bv218 32) (bvadd (_ bv331501 32) .cse9))) (.cse0 (not (bvsge (_ bv38 32) ~a1~0))) (.cse5 (not .cse7)) (.cse3 (not (= (_ bv6 32) ~a19~0))) (.cse8 (bvslt (_ bv218 32) (bvadd (_ bv505228 32) (bvsdiv (bvmul .cse9 (_ bv5 32)) (_ bv5 32))))) (.cse6 (or (not .cse2) (not (= (_ bv1 32) ~a10~0)) (not .cse1)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (or (and .cse4 .cse5) (and .cse5 .cse3)) .cse6) (and (bvslt (_ bv218 32) ~a1~0) (= (_ bv8 32) ~a19~0) .cse7) (and .cse1 .cse2 (= (_ bv10 32) ~a19~0) (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))) .cse8) (and .cse1 .cse2 .cse4 (or (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse0) (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0))) .cse6) (and .cse1 .cse2 .cse5 .cse3 .cse8) (and (= ~a19~0 (_ bv9 32)) .cse1 .cse2 .cse6)))) [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,336 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-13 08:05:12,337 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 08:05:12,338 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-13 08:05:12,339 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (= (_ bv0 32) ~a12~0)) (.cse1 (= (_ bv14 32) ~a4~0)) (.cse7 (= (_ bv0 32) ~a10~0)) (.cse9 (bvsdiv ~a1~0 (_ bv5 32)))) (let ((.cse4 (bvslt (_ bv218 32) (bvadd (_ bv331501 32) .cse9))) (.cse0 (not (bvsge (_ bv38 32) ~a1~0))) (.cse5 (not .cse7)) (.cse3 (not (= (_ bv6 32) ~a19~0))) (.cse8 (bvslt (_ bv218 32) (bvadd (_ bv505228 32) (bvsdiv (bvmul .cse9 (_ bv5 32)) (_ bv5 32))))) (.cse6 (or (not .cse2) (not (= (_ bv1 32) ~a10~0)) (not .cse1)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 (or (and .cse4 .cse5) (and .cse5 .cse3)) .cse6) (and (bvslt (_ bv218 32) ~a1~0) (= (_ bv8 32) ~a19~0) .cse7) (and .cse1 .cse2 (= (_ bv10 32) ~a19~0) (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))) .cse8) (and .cse1 .cse2 .cse4 (or (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse0) (or (not (bvsge (_ bv218 32) ~a1~0)) (not (bvslt (_ bv38 32) ~a1~0))) .cse6) (and .cse1 .cse2 .cse5 .cse3 .cse8) (and (= ~a19~0 (_ bv9 32)) .cse1 .cse2 .cse6)))) [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-13 08:05:12,340 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 08:05:12,341 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-13 08:05:12,342 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-13 08:05:12,343 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-13 08:05:12,343 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-13 08:05:12,343 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 08:05:12,343 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 08:05:12,343 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 08:05:12,356 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 08:05:12,357 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 08:05:12,357 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 08:05:12,360 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:05:12,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:05:12 BoogieIcfgContainer [2021-10-13 08:05:12,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:05:12,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:05:12,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:05:12,396 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:05:12,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:54:19" (3/4) ... [2021-10-13 08:05:12,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:05:12,421 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 08:05:12,422 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 08:05:12,423 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:05:12,425 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 08:05:12,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:05:12,535 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:05:12,536 INFO L168 Benchmark]: Toolchain (without parser) took 657649.50 ms. Allocated memory was 92.3 MB in the beginning and 327.2 MB in the end (delta: 234.9 MB). Free memory was 55.9 MB in the beginning and 70.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 222.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,536 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:05:12,537 INFO L168 Benchmark]: CACSL2BoogieTranslator took 921.09 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 59.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,537 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.21 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 53.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,537 INFO L168 Benchmark]: Boogie Preprocessor took 131.25 ms. Allocated memory is still 92.3 MB. Free memory was 53.7 MB in the beginning and 49.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,538 INFO L168 Benchmark]: RCFGBuilder took 3834.66 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 49.2 MB in the beginning and 91.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,538 INFO L168 Benchmark]: TraceAbstraction took 652475.59 ms. Allocated memory was 130.0 MB in the beginning and 327.2 MB in the end (delta: 197.1 MB). Free memory was 91.2 MB in the beginning and 85.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 250.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,539 INFO L168 Benchmark]: Witness Printer took 139.62 ms. Allocated memory is still 327.2 MB. Free memory was 85.4 MB in the beginning and 70.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:05:12,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 92.3 MB. Free memory is still 74.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 921.09 ms. Allocated memory is still 92.3 MB. Free memory was 55.8 MB in the beginning and 59.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 138.21 ms. Allocated memory is still 92.3 MB. Free memory was 59.0 MB in the beginning and 53.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 131.25 ms. Allocated memory is still 92.3 MB. Free memory was 53.7 MB in the beginning and 49.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3834.66 ms. Allocated memory was 92.3 MB in the beginning and 130.0 MB in the end (delta: 37.7 MB). Free memory was 49.2 MB in the beginning and 91.9 MB in the end (delta: -42.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 652475.59 ms. Allocated memory was 130.0 MB in the beginning and 327.2 MB in the end (delta: 197.1 MB). Free memory was 91.2 MB in the beginning and 85.4 MB in the end (delta: 5.8 MB). Peak memory consumption was 250.8 MB. Max. memory is 16.1 GB. * Witness Printer took 139.62 ms. Allocated memory is still 327.2 MB. Free memory was 85.4 MB in the beginning and 70.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 652340.8ms, OverallIterations: 10, TraceHistogramMax: 4, EmptinessCheckTime: 89.6ms, AutomataDifference: 386391.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 13309.4ms, InitialAbstractionConstructionTime: 19.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 643 SDtfs, 3233 SDslu, 226 SDs, 0 SdLazy, 12778 SolverSat, 2545 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 347417.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10187 GetRequests, 10080 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 22842.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2784occurred in iteration=8, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 489.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 1748 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 162 NumberOfFragments, 375 HoareAnnotationTreeSize, 3 FomulaSimplifications, 75952 FormulaSimplificationTreeSizeReduction, 1042.6ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6698 FormulaSimplificationTreeSizeReductionInter, 12259.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 415.7ms SsaConstructionTime, 2539.6ms SatisfiabilityAnalysisTime, 209257.6ms InterpolantComputationTime, 5092 NumberOfCodeBlocks, 5092 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 10150 ConstructedInterpolants, 0 QuantifiedInterpolants, 75335 SizeOfPredicates, 66 NumberOfNonLiveVariables, 6149 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 34 InterpolantComputations, 15 PerfectInterpolantSequences, 8233/10302 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((!~bvsge32(38bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && !(6bv32 == a19)) || (((14bv32 == a4 && 0bv32 == a12) && ((~bvslt32(218bv32, ~bvadd64(331501bv32, ~bvsdiv32(a1, 5bv32))) && !(0bv32 == a10)) || (!(0bv32 == a10) && !(6bv32 == a19)))) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4)))) || ((~bvslt32(218bv32, a1) && 8bv32 == a19) && 0bv32 == a10)) || ((((14bv32 == a4 && 0bv32 == a12) && 10bv32 == a19) && !(input == 5bv32)) && ~bvslt32(218bv32, ~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32))))) || (((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(331501bv32, ~bvsdiv32(a1, 5bv32)))) && (!~bvslt32(4294967283bv32, a1) || !~bvsge32(38bv32, a1))) && (!~bvsge32(218bv32, a1) || !~bvslt32(38bv32, a1))) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4)))) || ((((14bv32 == a4 && 0bv32 == a12) && !(0bv32 == a10)) && !(6bv32 == a19)) && ~bvslt32(218bv32, ~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32))))) || (((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((!~bvsge32(38bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && !(6bv32 == a19)) || (((14bv32 == a4 && 0bv32 == a12) && ((~bvslt32(218bv32, ~bvadd64(331501bv32, ~bvsdiv32(a1, 5bv32))) && !(0bv32 == a10)) || (!(0bv32 == a10) && !(6bv32 == a19)))) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4)))) || ((~bvslt32(218bv32, a1) && 8bv32 == a19) && 0bv32 == a10)) || ((((14bv32 == a4 && 0bv32 == a12) && 10bv32 == a19) && !(input == 5bv32)) && ~bvslt32(218bv32, ~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32))))) || (((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(331501bv32, ~bvsdiv32(a1, 5bv32)))) && (!~bvslt32(4294967283bv32, a1) || !~bvsge32(38bv32, a1))) && (!~bvsge32(218bv32, a1) || !~bvslt32(38bv32, a1))) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4)))) || ((((14bv32 == a4 && 0bv32 == a12) && !(0bv32 == a10)) && !(6bv32 == a19)) && ~bvslt32(218bv32, ~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32))))) || (((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((!(0bv32 == a12) || !(1bv32 == a10)) || !(14bv32 == a4))) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:05:12,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcb4529b-c344-451e-9ea3-60bcb1c65da2/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...