./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs --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 ea1d92b403839080b84472f5f751a439d61a1da2 ....................................................................................................................................................................................................................................................................................................................................................... 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs --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 ea1d92b403839080b84472f5f751a439d61a1da2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:37:44,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:37:44,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:37:44,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:37:44,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:37:44,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:37:44,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:37:44,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:37:44,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:37:44,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:37:44,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:37:44,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:37:44,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:37:44,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:37:44,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:37:44,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:37:44,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:37:44,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:37:44,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:37:44,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:37:44,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:37:44,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:37:44,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:37:44,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:37:44,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:37:44,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:37:44,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:37:44,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:37:44,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:37:44,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:37:44,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:37:44,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:37:44,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:37:44,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:37:44,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:37:44,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:37:44,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:37:44,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:37:44,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:37:44,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:37:44,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:37:44,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:37:44,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:37:44,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:37:44,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:37:44,600 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:37:44,601 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:37:44,601 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:37:44,601 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:37:44,601 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:37:44,601 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:37:44,602 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:37:44,602 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:37:44,602 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:37:44,602 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:37:44,603 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:37:44,603 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:37:44,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:37:44,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:37:44,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:37:44,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:37:44,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:37:44,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:37:44,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:37:44,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:37:44,605 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:37:44,606 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:37:44,606 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:37:44,606 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:37:44,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:37:44,607 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:37:44,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:37:44,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:37:44,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:37:44,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:37:44,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:37:44,608 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:37:44,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:37:44,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:37:44,609 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:37:44,609 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:37:44,609 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1d92b403839080b84472f5f751a439d61a1da2 [2021-10-16 02:37:44,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:37:44,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:37:44,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:37:44,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:37:44,885 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:37:44,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-16 02:37:44,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/ca4fbfc21/7620504e6b4a4ce4b394fbc600b1a509/FLAG0ec143c7e [2021-10-16 02:37:45,582 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:37:45,582 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-16 02:37:45,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/ca4fbfc21/7620504e6b4a4ce4b394fbc600b1a509/FLAG0ec143c7e [2021-10-16 02:37:45,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/ca4fbfc21/7620504e6b4a4ce4b394fbc600b1a509 [2021-10-16 02:37:45,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:37:45,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:37:45,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:37:45,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:37:45,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:37:45,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:45" (1/1) ... [2021-10-16 02:37:45,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be163b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:45, skipping insertion in model container [2021-10-16 02:37:45,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:37:45" (1/1) ... [2021-10-16 02:37:45,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:37:45,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:37:46,236 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-16 02:37:46,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:37:46,556 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:37:46,607 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-16 02:37:46,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:37:46,766 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:37:46,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46 WrapperNode [2021-10-16 02:37:46,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:37:46,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:37:46,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:37:46,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:37:46,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:46,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:46,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:37:46,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:37:46,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:37:46,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:37:46,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:46,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:46,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:46,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:47,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:47,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:47,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:47,094 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:37:47,095 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:37:47,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:37:47,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:37:47,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (1/1) ... [2021-10-16 02:37:47,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:37:47,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:37:47,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:37:47,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:37:47,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:37:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:37:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:37:47,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:38:09,960 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:38:09,960 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:38:09,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:38:09 BoogieIcfgContainer [2021-10-16 02:38:09,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:38:09,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:38:09,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:38:09,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:38:09,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:37:45" (1/3) ... [2021-10-16 02:38:09,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b886e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:38:09, skipping insertion in model container [2021-10-16 02:38:09,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:37:46" (2/3) ... [2021-10-16 02:38:09,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b886e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:38:09, skipping insertion in model container [2021-10-16 02:38:09,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:38:09" (3/3) ... [2021-10-16 02:38:09,976 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2021-10-16 02:38:09,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:38:09,982 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:38:10,039 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:38:10,045 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 [2021-10-16 02:38:10,046 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:38:10,059 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) [2021-10-16 02:38:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:38:10,064 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:38:10,064 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:38:10,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:38:10,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:38:10,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1191230633, now seen corresponding path program 1 times [2021-10-16 02:38:10,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:38:10,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425020766] [2021-10-16 02:38:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:38:10,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:38:10,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:38:10,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:38:10,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:38:10,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425020766] [2021-10-16 02:38:10,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425020766] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:38:10,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:38:10,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:38:10,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322703203] [2021-10-16 02:38:10,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:38:10,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:38:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:38:10,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:38:10,311 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2021-10-16 02:38:10,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:38:10,401 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-16 02:38:10,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:38:10,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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 [2021-10-16 02:38:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:38:10,409 INFO L225 Difference]: With dead ends: 23 [2021-10-16 02:38:10,409 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:38:10,411 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:38:10,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:38:10,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-16 02:38:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2021-10-16 02:38:10,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-16 02:38:10,436 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-16 02:38:10,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:38:10,436 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-16 02:38:10,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2021-10-16 02:38:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-16 02:38:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:38:10,437 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:38:10,437 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:38:10,438 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:38:10,438 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:38:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:38:10,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1989213887, now seen corresponding path program 1 times [2021-10-16 02:38:10,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:38:10,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926586559] [2021-10-16 02:38:10,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:38:10,440 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:38:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:38:11,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:38:11,087 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:38:11,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926586559] [2021-10-16 02:38:11,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926586559] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:38:11,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527324012] [2021-10-16 02:38:11,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:38:11,089 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:38:11,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:38:11,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:38:11,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:38:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:38:11,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:38:11,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:38:15,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:38:15,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:44:22,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-16 02:44:22,202 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1486794460] [2021-10-16 02:44:22,228 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:44:22,229 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:44:22,235 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:44:22,242 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:44:22,243 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:44:22,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,289 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:44:22,290 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,291 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:44:22,292 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:44:22,293 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:44:22,296 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:44:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:44:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:44:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:44:22,350 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 [2021-10-16 02:44:22,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,352 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:44:22,353 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,354 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:44:22,354 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:44:22,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:44:22,382 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:44:22,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-10-16 02:44:22,387 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:44:22,388 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:155, output treesize:158 [2021-10-16 02:44:22,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-16 02:44:22,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:44:22,603 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) [2021-10-16 02:44:22,607 INFO L168 Benchmark]: Toolchain (without parser) took 396809.99 ms. Allocated memory was 104.9 MB in the beginning and 2.4 GB in the end (delta: 2.3 GB). Free memory was 61.3 MB in the beginning and 1.6 GB in the end (delta: -1.6 GB). Peak memory consumption was 766.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,608 INFO L168 Benchmark]: CDTParser took 0.91 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 81.5 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:44:22,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 967.54 ms. Allocated memory is still 104.9 MB. Free memory was 61.1 MB in the beginning and 46.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.88 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 85.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,610 INFO L168 Benchmark]: Boogie Preprocessor took 132.95 ms. Allocated memory is still 125.8 MB. Free memory was 85.1 MB in the beginning and 75.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,611 INFO L168 Benchmark]: RCFGBuilder took 22867.34 ms. Allocated memory was 125.8 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 75.5 MB in the beginning and 844.6 MB in the end (delta: -769.1 MB). Peak memory consumption was 417.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,612 INFO L168 Benchmark]: TraceAbstraction took 372641.77 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 843.5 MB in the beginning and 1.6 GB in the end (delta: -780.5 MB). Peak memory consumption was 535.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:44:22,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 81.5 MB in the end (delta: 55.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 967.54 ms. Allocated memory is still 104.9 MB. Free memory was 61.1 MB in the beginning and 46.7 MB in the end (delta: 14.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 192.88 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 46.7 MB in the beginning and 85.1 MB in the end (delta: -38.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 132.95 ms. Allocated memory is still 125.8 MB. Free memory was 85.1 MB in the beginning and 75.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22867.34 ms. Allocated memory was 125.8 MB in the beginning and 1.1 GB in the end (delta: 992.0 MB). Free memory was 75.5 MB in the beginning and 844.6 MB in the end (delta: -769.1 MB). Peak memory consumption was 417.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 372641.77 ms. Allocated memory was 1.1 GB in the beginning and 2.4 GB in the end (delta: 1.3 GB). Free memory was 843.5 MB in the beginning and 1.6 GB in the end (delta: -780.5 MB). Peak memory consumption was 535.5 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. [2021-10-16 02:44:22,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:44:25,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:44:25,653 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:44:25,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:44:25,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:44:25,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:44:25,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:44:25,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:44:25,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:44:25,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:44:25,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:44:25,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:44:25,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:44:25,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:44:25,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:44:25,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:44:25,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:44:25,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:44:25,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:44:25,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:44:25,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:44:25,740 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:44:25,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:44:25,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:44:25,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:44:25,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:44:25,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:44:25,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:44:25,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:44:25,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:44:25,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:44:25,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:44:25,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:44:25,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:44:25,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:44:25,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:44:25,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:44:25,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:44:25,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:44:25,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:44:25,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:44:25,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:44:25,841 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:44:25,841 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:44:25,843 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:44:25,844 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:44:25,844 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:44:25,844 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:44:25,845 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:44:25,845 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:44:25,845 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:44:25,847 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:44:25,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:44:25,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:44:25,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:44:25,849 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:44:25,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:44:25,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:44:25,850 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:44:25,850 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:44:25,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:44:25,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:44:25,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:44:25,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:44:25,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:44:25,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:44:25,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:44:25,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:44:25,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:44:25,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:44:25,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:44:25,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:44:25,853 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:44:25,854 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:44:25,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:44:25,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:44:25,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:44:25,855 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea1d92b403839080b84472f5f751a439d61a1da2 [2021-10-16 02:44:26,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:44:26,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:44:26,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:44:26,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:44:26,395 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:44:26,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-16 02:44:26,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/82bb20b06/07b92df5589d4d649d5034eb75b27da6/FLAGad657fd5b [2021-10-16 02:44:27,505 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:44:27,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c [2021-10-16 02:44:27,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/82bb20b06/07b92df5589d4d649d5034eb75b27da6/FLAGad657fd5b [2021-10-16 02:44:27,562 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/data/82bb20b06/07b92df5589d4d649d5034eb75b27da6 [2021-10-16 02:44:27,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:44:27,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:44:27,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:44:27,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:44:27,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:44:27,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:27" (1/1) ... [2021-10-16 02:44:27,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375f2d7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:27, skipping insertion in model container [2021-10-16 02:44:27,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:27" (1/1) ... [2021-10-16 02:44:27,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:44:27,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:44:27,995 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-16 02:44:28,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:44:28,499 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:44:28,572 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_896aaaff-0d11-442d-8a65-b3c392c0c0f4/sv-benchmarks/c/eca-rers2012/Problem11_label38.c[8652,8665] [2021-10-16 02:44:28,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:44:28,812 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:44:28,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28 WrapperNode [2021-10-16 02:44:28,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:44:28,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:44:28,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:44:28,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:44:28,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:28,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:28,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:44:28,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:44:28,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:44:28,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:44:29,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:44:29,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:44:29,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:44:29,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:44:29,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (1/1) ... [2021-10-16 02:44:29,206 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:44:29,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:44:29,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:44:29,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:44:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:44:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:44:29,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:44:29,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:44:39,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:44:39,175 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:44:39,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:39 BoogieIcfgContainer [2021-10-16 02:44:39,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:44:39,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:44:39,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:44:39,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:44:39,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:44:27" (1/3) ... [2021-10-16 02:44:39,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6172d474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:39, skipping insertion in model container [2021-10-16 02:44:39,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:28" (2/3) ... [2021-10-16 02:44:39,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6172d474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:39, skipping insertion in model container [2021-10-16 02:44:39,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:39" (3/3) ... [2021-10-16 02:44:39,197 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label38.c [2021-10-16 02:44:39,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:44:39,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:44:39,285 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:44:39,292 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 [2021-10-16 02:44:39,293 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:44:39,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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) [2021-10-16 02:44:39,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-10-16 02:44:39,349 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:44:39,350 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, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:44:39,351 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:44:39,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:44:39,358 INFO L82 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2021-10-16 02:44:39,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:44:39,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122799318] [2021-10-16 02:44:39,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:44:39,377 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:44:39,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:44:39,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:44:39,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:44:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:44:39,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:44:39,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:44:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:44:40,098 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:44:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:44:40,492 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:44:40,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122799318] [2021-10-16 02:44:40,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1122799318] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:44:40,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:44:40,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:44:40,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775421688] [2021-10-16 02:44:40,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:44:40,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:44:40,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:44:40,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:44:40,524 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 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 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-10-16 02:45:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:45:28,113 INFO L93 Difference]: Finished difference Result 970 states and 1743 transitions. [2021-10-16 02:45:28,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:45:28,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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 60 [2021-10-16 02:45:28,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:45:28,146 INFO L225 Difference]: With dead ends: 970 [2021-10-16 02:45:28,147 INFO L226 Difference]: Without dead ends: 604 [2021-10-16 02:45:28,152 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.2ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:45:28,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-10-16 02:45:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 598. [2021-10-16 02:45:28,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 598 states, 597 states have (on average 1.4840871021775544) internal successors, (886), 597 states have internal predecessors, (886), 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) [2021-10-16 02:45:28,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 598 states to 598 states and 886 transitions. [2021-10-16 02:45:28,245 INFO L78 Accepts]: Start accepts. Automaton has 598 states and 886 transitions. Word has length 60 [2021-10-16 02:45:28,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:45:28,247 INFO L470 AbstractCegarLoop]: Abstraction has 598 states and 886 transitions. [2021-10-16 02:45:28,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 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) [2021-10-16 02:45:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states and 886 transitions. [2021-10-16 02:45:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-10-16 02:45:28,256 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:45:28,256 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:45:28,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:45:28,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:45:28,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:45:28,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:45:28,460 INFO L82 PathProgramCache]: Analyzing trace with hash -591086660, now seen corresponding path program 1 times [2021-10-16 02:45:28,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:45:28,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535863672] [2021-10-16 02:45:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:45:28,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:45:28,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:45:28,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:45:28,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:45:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:45:28,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:45:28,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:45:29,402 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:45:29,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:45:31,097 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:45:31,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:45:31,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535863672] [2021-10-16 02:45:31,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535863672] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:45:31,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:45:31,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:45:31,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468456285] [2021-10-16 02:45:31,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:45:31,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:45:31,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:45:31,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:45:31,104 INFO L87 Difference]: Start difference. First operand 598 states and 886 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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) [2021-10-16 02:45:45,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:45:45,917 INFO L93 Difference]: Finished difference Result 2322 states and 3458 transitions. [2021-10-16 02:45:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:45:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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 129 [2021-10-16 02:45:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:45:45,933 INFO L225 Difference]: With dead ends: 2322 [2021-10-16 02:45:45,933 INFO L226 Difference]: Without dead ends: 1726 [2021-10-16 02:45:45,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:45:45,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2021-10-16 02:45:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 1524. [2021-10-16 02:45:46,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.370978332239002) internal successors, (2088), 1523 states have internal predecessors, (2088), 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) [2021-10-16 02:45:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 2088 transitions. [2021-10-16 02:45:46,020 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 2088 transitions. Word has length 129 [2021-10-16 02:45:46,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:45:46,021 INFO L470 AbstractCegarLoop]: Abstraction has 1524 states and 2088 transitions. [2021-10-16 02:45:46,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 3 states have internal predecessors, (199), 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) [2021-10-16 02:45:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 2088 transitions. [2021-10-16 02:45:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-10-16 02:45:46,032 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:45:46,032 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:45:46,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:45:46,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:45:46,247 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:45:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:45:46,248 INFO L82 PathProgramCache]: Analyzing trace with hash 800544359, now seen corresponding path program 1 times [2021-10-16 02:45:46,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:45:46,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518136887] [2021-10-16 02:45:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:45:46,252 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:45:46,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:45:46,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:45:46,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:45:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:45:46,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:45:46,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:45:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-16 02:45:47,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:45:48,455 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-16 02:45:48,456 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:45:48,456 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518136887] [2021-10-16 02:45:48,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [518136887] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:45:48,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:45:48,457 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:45:48,457 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136293094] [2021-10-16 02:45:48,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:45:48,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:45:48,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:45:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:45:48,460 INFO L87 Difference]: Start difference. First operand 1524 states and 2088 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-10-16 02:46:14,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:14,450 INFO L93 Difference]: Finished difference Result 5258 states and 7337 transitions. [2021-10-16 02:46:14,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:46:14,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 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 200 [2021-10-16 02:46:14,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:14,478 INFO L225 Difference]: With dead ends: 5258 [2021-10-16 02:46:14,479 INFO L226 Difference]: Without dead ends: 3736 [2021-10-16 02:46:14,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:14,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-10-16 02:46:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3736. [2021-10-16 02:46:14,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3736 states, 3735 states have (on average 1.2444444444444445) internal successors, (4648), 3735 states have internal predecessors, (4648), 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) [2021-10-16 02:46:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3736 states to 3736 states and 4648 transitions. [2021-10-16 02:46:14,618 INFO L78 Accepts]: Start accepts. Automaton has 3736 states and 4648 transitions. Word has length 200 [2021-10-16 02:46:14,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:14,619 INFO L470 AbstractCegarLoop]: Abstraction has 3736 states and 4648 transitions. [2021-10-16 02:46:14,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 3 states have internal predecessors, (215), 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) [2021-10-16 02:46:14,620 INFO L276 IsEmpty]: Start isEmpty. Operand 3736 states and 4648 transitions. [2021-10-16 02:46:14,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-10-16 02:46:14,629 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:14,630 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, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-16 02:46:14,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-16 02:46:14,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:14,839 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:14,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:14,840 INFO L82 PathProgramCache]: Analyzing trace with hash -765977344, now seen corresponding path program 1 times [2021-10-16 02:46:14,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:14,841 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224200600] [2021-10-16 02:46:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:14,842 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:14,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:14,843 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:14,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:46:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:15,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:46:15,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:18,279 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 115 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:18,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:23,105 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:23,106 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:23,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224200600] [2021-10-16 02:46:23,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224200600] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:46:23,107 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:46:23,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-16 02:46:23,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555982483] [2021-10-16 02:46:23,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:46:23,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:23,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:46:23,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:46:23,111 INFO L87 Difference]: Start difference. First operand 3736 states and 4648 transitions. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2021-10-16 02:46:43,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:43,477 INFO L93 Difference]: Finished difference Result 7096 states and 9099 transitions. [2021-10-16 02:46:43,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:46:43,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 241 [2021-10-16 02:46:43,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:43,534 INFO L225 Difference]: With dead ends: 7096 [2021-10-16 02:46:43,534 INFO L226 Difference]: Without dead ends: 4840 [2021-10-16 02:46:43,538 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 90.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:46:43,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2021-10-16 02:46:43,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 4840. [2021-10-16 02:46:43,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4840 states, 4839 states have (on average 1.2605910312047943) internal successors, (6100), 4839 states have internal predecessors, (6100), 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) [2021-10-16 02:46:43,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4840 states to 4840 states and 6100 transitions. [2021-10-16 02:46:43,730 INFO L78 Accepts]: Start accepts. Automaton has 4840 states and 6100 transitions. Word has length 241 [2021-10-16 02:46:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:43,732 INFO L470 AbstractCegarLoop]: Abstraction has 4840 states and 6100 transitions. [2021-10-16 02:46:43,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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) [2021-10-16 02:46:43,733 INFO L276 IsEmpty]: Start isEmpty. Operand 4840 states and 6100 transitions. [2021-10-16 02:46:43,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-10-16 02:46:43,743 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:43,744 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:43,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:43,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:43,962 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1528003240, now seen corresponding path program 1 times [2021-10-16 02:46:43,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:43,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355782041] [2021-10-16 02:46:43,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:43,968 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:43,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:43,969 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:44,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:46:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:45,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:46:45,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:46,282 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:46,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:47,894 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:47,895 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:47,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355782041] [2021-10-16 02:46:47,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355782041] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:46:47,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1479522429] [2021-10-16 02:46:47,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:47,896 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:46:47,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:46:47,911 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:46:47,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 02:46:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:49,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:46:49,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-10-16 02:46:50,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2021-10-16 02:46:52,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1479522429] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:52,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:46:52,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [3, 3] total 10 [2021-10-16 02:46:52,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024660677] [2021-10-16 02:46:52,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:46:52,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:52,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:46:52,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:46:52,242 INFO L87 Difference]: Start difference. First operand 4840 states and 6100 transitions. Second operand has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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) [2021-10-16 02:47:42,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:42,310 INFO L93 Difference]: Finished difference Result 11206 states and 14491 transitions. [2021-10-16 02:47:42,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:47:42,311 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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 287 [2021-10-16 02:47:42,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:42,354 INFO L225 Difference]: With dead ends: 11206 [2021-10-16 02:47:42,355 INFO L226 Difference]: Without dead ends: 6736 [2021-10-16 02:47:42,360 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1146 GetRequests, 1137 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 250.1ms TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:47:42,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6736 states. [2021-10-16 02:47:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6736 to 6129. [2021-10-16 02:47:42,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6128 states have (on average 1.2468994778067886) internal successors, (7641), 6128 states have internal predecessors, (7641), 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) [2021-10-16 02:47:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 7641 transitions. [2021-10-16 02:47:42,566 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 7641 transitions. Word has length 287 [2021-10-16 02:47:42,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:42,568 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 7641 transitions. [2021-10-16 02:47:42,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 33.5) internal successors, (201), 6 states have internal predecessors, (201), 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) [2021-10-16 02:47:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 7641 transitions. [2021-10-16 02:47:42,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-10-16 02:47:42,617 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:42,618 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:42,630 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:42,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:43,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:43,031 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:43,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:43,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1455588175, now seen corresponding path program 1 times [2021-10-16 02:47:43,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:43,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975751360] [2021-10-16 02:47:43,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:43,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:43,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:43,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:43,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-16 02:47:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:44,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:47:44,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:48,208 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:48,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:18,357 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 252 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:18,358 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:18,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975751360] [2021-10-16 02:48:18,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [975751360] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:18,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1543416458] [2021-10-16 02:48:18,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:18,359 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:48:18,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:48:18,360 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:48:18,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-16 02:48:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:20,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:48:20,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:24,530 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 306 proven. 58 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-16 02:48:24,531 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 323 proven. 41 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-10-16 02:48:28,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1543416458] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:28,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226690841] [2021-10-16 02:48:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:28,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:28,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:48:28,607 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:48:28,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-16 02:48:30,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:30,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:48:30,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:32,342 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-10-16 02:48:32,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 443 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2021-10-16 02:48:33,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226690841] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:48:33,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-16 02:48:33,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [5, 5, 7, 7] total 17 [2021-10-16 02:48:33,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296414546] [2021-10-16 02:48:33,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:48:33,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:33,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:48:33,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:48:33,832 INFO L87 Difference]: Start difference. First operand 6129 states and 7641 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:48:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:48:41,331 INFO L93 Difference]: Finished difference Result 13174 states and 16672 transitions. [2021-10-16 02:48:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:48:41,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2021-10-16 02:48:41,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:48:41,370 INFO L225 Difference]: With dead ends: 13174 [2021-10-16 02:48:41,370 INFO L226 Difference]: Without dead ends: 7415 [2021-10-16 02:48:41,378 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2346 GetRequests, 2331 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2554.1ms TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:48:41,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7415 states. [2021-10-16 02:48:41,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7415 to 5942. [2021-10-16 02:48:41,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5942 states, 5941 states have (on average 1.2331257364080122) internal successors, (7326), 5941 states have internal predecessors, (7326), 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) [2021-10-16 02:48:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5942 states to 5942 states and 7326 transitions. [2021-10-16 02:48:41,615 INFO L78 Accepts]: Start accepts. Automaton has 5942 states and 7326 transitions. Word has length 392 [2021-10-16 02:48:41,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:48:41,616 INFO L470 AbstractCegarLoop]: Abstraction has 5942 states and 7326 transitions. [2021-10-16 02:48:41,616 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:48:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 5942 states and 7326 transitions. [2021-10-16 02:48:41,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-10-16 02:48:41,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:48:41,640 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, 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, 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] [2021-10-16 02:48:41,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:41,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:42,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:48:42,254 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:42,255 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:48:42,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:48:42,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1882733110, now seen corresponding path program 1 times [2021-10-16 02:48:42,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:48:42,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449796122] [2021-10-16 02:48:42,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:42,258 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:48:42,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:48:42,259 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:48:42,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-16 02:48:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:44,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-16 02:48:44,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:45,493 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 337 proven. 97 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-16 02:48:45,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:47,107 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 434 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-10-16 02:48:47,107 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:48:47,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449796122] [2021-10-16 02:48:47,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1449796122] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:48:47,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:48:47,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-16 02:48:47,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137006310] [2021-10-16 02:48:47,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:48:47,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:48:47,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:48:47,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:48:47,112 INFO L87 Difference]: Start difference. First operand 5942 states and 7326 transitions. Second operand has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2021-10-16 02:49:11,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:11,743 INFO L93 Difference]: Finished difference Result 14274 states and 17600 transitions. [2021-10-16 02:49:11,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:49:11,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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 425 [2021-10-16 02:49:11,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:11,785 INFO L225 Difference]: With dead ends: 14274 [2021-10-16 02:49:11,785 INFO L226 Difference]: Without dead ends: 8702 [2021-10-16 02:49:11,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 19.3ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:49:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8702 states. [2021-10-16 02:49:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8702 to 7966. [2021-10-16 02:49:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7966 states, 7965 states have (on average 1.181293157564344) internal successors, (9409), 7965 states have internal predecessors, (9409), 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) [2021-10-16 02:49:12,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7966 states to 7966 states and 9409 transitions. [2021-10-16 02:49:12,034 INFO L78 Accepts]: Start accepts. Automaton has 7966 states and 9409 transitions. Word has length 425 [2021-10-16 02:49:12,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:12,035 INFO L470 AbstractCegarLoop]: Abstraction has 7966 states and 9409 transitions. [2021-10-16 02:49:12,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2021-10-16 02:49:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 7966 states and 9409 transitions. [2021-10-16 02:49:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-10-16 02:49:12,057 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:49:12,057 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, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2021-10-16 02:49:12,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:12,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:49:12,276 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:49:12,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:49:12,277 INFO L82 PathProgramCache]: Analyzing trace with hash -860744180, now seen corresponding path program 1 times [2021-10-16 02:49:12,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:49:12,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655905635] [2021-10-16 02:49:12,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:12,279 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:49:12,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:49:12,282 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:49:12,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:49:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:14,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:49:14,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 349 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:16,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:25,713 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 395 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:49:25,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:49:25,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655905635] [2021-10-16 02:49:25,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655905635] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:49:25,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1714106424] [2021-10-16 02:49:25,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:49:25,713 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:49:25,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:49:25,714 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:49:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-16 02:49:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:49:28,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:49:28,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:49:29,848 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-16 02:49:29,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:49:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-10-16 02:49:30,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1714106424] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:49:30,598 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:49:30,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 8 [2021-10-16 02:49:30,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172827783] [2021-10-16 02:49:30,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:49:30,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:49:30,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:49:30,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:49:30,601 INFO L87 Difference]: Start difference. First operand 7966 states and 9409 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:49:41,487 INFO L93 Difference]: Finished difference Result 15555 states and 18644 transitions. [2021-10-16 02:49:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:49:41,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 439 [2021-10-16 02:49:41,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:49:41,489 INFO L225 Difference]: With dead ends: 15555 [2021-10-16 02:49:41,489 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:49:41,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1752 GetRequests, 1746 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 510.3ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:49:41,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:49:41,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:49:41,500 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) [2021-10-16 02:49:41,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:49:41,500 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 439 [2021-10-16 02:49:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:49:41,501 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:49:41,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:49:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:49:41,501 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:49:41,503 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:49:41,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:41,733 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:49:41,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:49:41,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:49:41,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:49:42,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:49:42,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:49:42,964 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,965 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,966 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-10-16 02:49:42,967 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,968 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,969 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (or (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsge (_ bv138 32) ~a23~0)) (not (= (_ bv13 32) ~a25~0)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-16 02:49:42,969 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,970 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,971 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,972 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-16 02:49:42,973 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-10-16 02:49:42,974 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,974 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (or (not (bvslt (_ bv277 32) ~a29~0)) (not (bvsge (_ bv138 32) ~a23~0)) (not (= (_ bv13 32) ~a25~0)) (not (= ~a4~0 (_ bv1 32)))) [2021-10-16 02:49:42,974 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,979 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,979 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,979 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-10-16 02:49:42,980 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,981 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,982 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,983 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,983 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,983 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:49:42,983 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,984 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-10-16 02:49:42,985 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-10-16 02:49:42,986 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,987 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,987 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,987 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,987 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,987 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-10-16 02:49:42,988 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 196) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,989 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-16 02:49:42,990 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,991 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,992 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,993 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-10-16 02:49:42,994 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,995 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,996 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:42,997 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-10-16 02:49:42,998 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-10-16 02:49:42,999 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,000 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,001 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,002 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,003 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,004 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-10-16 02:49:43,005 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,006 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,007 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,007 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,007 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-16 02:49:43,008 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-10-16 02:49:43,008 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-10-16 02:49:43,009 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-10-16 02:49:43,009 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-10-16 02:49:43,009 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-10-16 02:49:43,009 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,009 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,010 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,010 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,011 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,012 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,012 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,012 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-10-16 02:49:43,012 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,013 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,014 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-10-16 02:49:43,015 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,016 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,016 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-10-16 02:49:43,016 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-10-16 02:49:43,016 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-10-16 02:49:43,016 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-10-16 02:49:43,022 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:49:43,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:49:43 BoogieIcfgContainer [2021-10-16 02:49:43,039 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:49:43,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:49:43,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:49:43,041 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:49:43,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:39" (3/4) ... [2021-10-16 02:49:43,046 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:49:43,092 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:49:43,094 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:49:43,097 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:49:43,099 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:49:43,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:49:43,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:49:43,299 INFO L168 Benchmark]: Toolchain (without parser) took 315720.68 ms. Allocated memory was 54.5 MB in the beginning and 264.2 MB in the end (delta: 209.7 MB). Free memory was 29.4 MB in the beginning and 57.1 MB in the end (delta: -27.6 MB). Peak memory consumption was 189.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,299 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory is still 35.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:49:43,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1230.92 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 29.3 MB in the beginning and 44.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 172.42 ms. Allocated memory is still 77.6 MB. Free memory was 44.0 MB in the beginning and 35.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,301 INFO L168 Benchmark]: Boogie Preprocessor took 203.86 ms. Allocated memory is still 77.6 MB. Free memory was 35.3 MB in the beginning and 48.6 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,301 INFO L168 Benchmark]: RCFGBuilder took 9991.25 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 48.6 MB in the beginning and 52.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,302 INFO L168 Benchmark]: TraceAbstraction took 303852.70 ms. Allocated memory was 104.9 MB in the beginning and 264.2 MB in the end (delta: 159.4 MB). Free memory was 51.9 MB in the beginning and 57.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 162.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,302 INFO L168 Benchmark]: Witness Printer took 256.93 ms. Allocated memory is still 264.2 MB. Free memory was 57.6 MB in the beginning and 57.1 MB in the end (delta: 480.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:49:43,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 54.5 MB. Free memory is still 35.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1230.92 ms. Allocated memory was 54.5 MB in the beginning and 77.6 MB in the end (delta: 23.1 MB). Free memory was 29.3 MB in the beginning and 44.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 172.42 ms. Allocated memory is still 77.6 MB. Free memory was 44.0 MB in the beginning and 35.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 203.86 ms. Allocated memory is still 77.6 MB. Free memory was 35.3 MB in the beginning and 48.6 MB in the end (delta: -13.3 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9991.25 ms. Allocated memory was 77.6 MB in the beginning and 104.9 MB in the end (delta: 27.3 MB). Free memory was 48.6 MB in the beginning and 52.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 303852.70 ms. Allocated memory was 104.9 MB in the beginning and 264.2 MB in the end (delta: 159.4 MB). Free memory was 51.9 MB in the beginning and 57.6 MB in the end (delta: -5.6 MB). Peak memory consumption was 162.0 MB. Max. memory is 16.1 GB. * Witness Printer took 256.93 ms. Allocated memory is still 264.2 MB. Free memory was 57.6 MB in the beginning and 57.1 MB in the end (delta: 480.6 kB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 196]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 303738.5ms, OverallIterations: 8, TraceHistogramMax: 4, EmptinessCheckTime: 161.6ms, AutomataDifference: 202185.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1036.9ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1231 SDtfs, 2241 SDslu, 252 SDs, 0 SdLazy, 6287 SolverSat, 1776 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 185123.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7344 GetRequests, 7302 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3483.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7966occurred in iteration=7, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1169.9ms AutomataMinimizationTime, 8 MinimizatonAttempts, 3024 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 114 NumberOfFragments, 35 HoareAnnotationTreeSize, 3 FomulaSimplifications, 11132 FormulaSimplificationTreeSizeReduction, 512.2ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 840 FormulaSimplificationTreeSizeReductionInter, 514.5ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 360.7ms SsaConstructionTime, 2160.9ms SatisfiabilityAnalysisTime, 80498.0ms InterpolantComputationTime, 3683 NumberOfCodeBlocks, 3683 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 7342 ConstructedInterpolants, 0 QuantifiedInterpolants, 30809 SizeOfPredicates, 27 NumberOfNonLiveVariables, 4492 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 24 InterpolantComputations, 14 PerfectInterpolantSequences, 6033/7432 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: 1044]: Loop Invariant Derived loop invariant: ((!~bvslt32(277bv32, a29) || !~bvsge32(138bv32, a23)) || !(13bv32 == a25)) || !(a4 == 1bv32) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((!~bvslt32(277bv32, a29) || !~bvsge32(138bv32, a23)) || !(13bv32 == a25)) || !(a4 == 1bv32) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:49:43,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_896aaaff-0d11-442d-8a65-b3c392c0c0f4/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...