./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94596b36b24d04639813cccc1625ed66ec56e5fc ....................................................................................................................................................................................................................................................................................................................................................... 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_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94596b36b24d04639813cccc1625ed66ec56e5fc ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:16:44,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:16:44,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:16:44,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:16:44,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:16:44,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:16:44,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:16:44,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:16:44,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:16:44,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:16:44,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:16:44,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:16:44,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:16:44,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:16:44,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:16:44,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:16:44,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:16:44,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:16:44,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:16:44,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:16:44,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:16:44,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:16:44,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:16:44,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:16:44,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:16:44,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:16:44,604 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:16:44,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:16:44,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:16:44,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:16:44,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:16:44,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:16:44,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:16:44,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:16:44,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:16:44,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:16:44,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:16:44,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:16:44,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:16:44,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:16:44,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:16:44,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:16:44,645 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:16:44,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:16:44,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:16:44,647 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:16:44,647 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:16:44,648 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:16:44,648 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:16:44,648 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:16:44,648 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:16:44,649 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:16:44,649 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:16:44,649 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:16:44,649 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:16:44,650 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:16:44,650 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:16:44,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:16:44,651 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:16:44,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:16:44,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:16:44,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:16:44,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:16:44,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:16:44,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:16:44,653 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:16:44,653 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:16:44,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:16:44,653 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:16:44,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:16:44,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:16:44,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:16:44,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:16:44,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:16:44,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:16:44,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:16:44,655 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:16:44,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:16:44,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:16:44,656 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:16:44,656 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:16:44,657 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_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94596b36b24d04639813cccc1625ed66ec56e5fc [2021-10-13 07:16:44,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:16:44,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:16:44,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:16:44,934 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:16:44,935 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:16:44,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-13 07:16:45,010 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/bf040fdec/a3091eb6a6f84988ab2e6a452d8e12cd/FLAG8fb5e8745 [2021-10-13 07:16:45,571 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:16:45,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-13 07:16:45,603 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/bf040fdec/a3091eb6a6f84988ab2e6a452d8e12cd/FLAG8fb5e8745 [2021-10-13 07:16:45,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/bf040fdec/a3091eb6a6f84988ab2e6a452d8e12cd [2021-10-13 07:16:45,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:16:45,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:16:45,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:16:45,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:16:45,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:16:45,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:45" (1/1) ... [2021-10-13 07:16:45,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49001b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:45, skipping insertion in model container [2021-10-13 07:16:45,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:16:45" (1/1) ... [2021-10-13 07:16:45,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:16:45,920 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:16:46,178 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_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-13 07:16:46,451 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:16:46,460 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:16:46,495 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_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-13 07:16:46,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:16:46,622 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:16:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46 WrapperNode [2021-10-13 07:16:46,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:16:46,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:16:46,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:16:46,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:16:46,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:16:46,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:16:46,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:16:46,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:16:46,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:16:46,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:16:46,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:16:46,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:16:46,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (1/1) ... [2021-10-13 07:16:46,847 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:16:46,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:16:46,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:16:46,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:16:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:16:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:16:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:16:46,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:17:00,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:17:00,627 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:17:00,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:00 BoogieIcfgContainer [2021-10-13 07:17:00,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:17:00,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:17:00,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:17:00,636 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:17:00,637 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:16:45" (1/3) ... [2021-10-13 07:17:00,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2e19ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:00, skipping insertion in model container [2021-10-13 07:17:00,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:16:46" (2/3) ... [2021-10-13 07:17:00,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b2e19ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:00, skipping insertion in model container [2021-10-13 07:17:00,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:00" (3/3) ... [2021-10-13 07:17:00,640 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2021-10-13 07:17:00,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:17:00,652 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:17:00,720 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:17:00,733 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:17:00,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:17:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:00,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 07:17:00,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:00,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-13 07:17:00,757 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:00,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1065480459, now seen corresponding path program 1 times [2021-10-13 07:17:00,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:17:00,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233271168] [2021-10-13 07:17:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:00,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:17:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:00,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:17:00,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233271168] [2021-10-13 07:17:00,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233271168] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:17:00,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:17:00,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:17:00,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174359693] [2021-10-13 07:17:00,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:17:00,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:17:00,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:17:00,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:17:00,969 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) [2021-10-13 07:17:01,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:17:01,050 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-13 07:17:01,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:17:01,052 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 [2021-10-13 07:17:01,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:17:01,059 INFO L225 Difference]: With dead ends: 23 [2021-10-13 07:17:01,060 INFO L226 Difference]: Without dead ends: 11 [2021-10-13 07:17:01,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:17:01,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-13 07:17:01,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-13 07:17:01,090 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) [2021-10-13 07:17:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-13 07:17:01,092 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-13 07:17:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:17:01,093 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-13 07:17:01,093 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) [2021-10-13 07:17:01,093 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-13 07:17:01,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:17:01,094 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:01,094 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-13 07:17:01,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:17:01,095 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:01,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:01,096 INFO L82 PathProgramCache]: Analyzing trace with hash 703653921, now seen corresponding path program 1 times [2021-10-13 07:17:01,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:17:01,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537212485] [2021-10-13 07:17:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:01,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:17:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:01,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:17:01,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537212485] [2021-10-13 07:17:01,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537212485] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 07:17:01,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370269641] [2021-10-13 07:17:01,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:01,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:17:01,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:17:01,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:17:01,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:17:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:01,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:17:01,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:10,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:26,754 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-13 07:17:26,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [11564064] [2021-10-13 07:17:26,774 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-13 07:17:26,774 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:17:26,779 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:17:26,784 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:17:26,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:17:26,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,817 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:17:26,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,818 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:17:26,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:17:26,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:17:26,822 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:17:26,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:17:26,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:17:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:17:26,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-13 07:17:26,865 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,867 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:17:26,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,871 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-13 07:17:26,871 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:17:26,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:17:26,891 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:17:26,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-13 07:17:26,895 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:17:26,895 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-13 07:17:26,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:17:27,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-13 07:17:27,112 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 07:17:27,117 INFO L168 Benchmark]: Toolchain (without parser) took 41280.64 ms. Allocated memory was 88.1 MB in the beginning and 3.1 GB in the end (delta: 3.0 GB). Free memory was 49.4 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,118 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 68.0 MB in the beginning and 68.0 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:17:27,118 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.70 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.2 MB in the beginning and 62.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.67 ms. Allocated memory is still 107.0 MB. Free memory was 62.3 MB in the beginning and 52.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,120 INFO L168 Benchmark]: Boogie Preprocessor took 109.40 ms. Allocated memory is still 107.0 MB. Free memory was 52.8 MB in the beginning and 46.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,120 INFO L168 Benchmark]: RCFGBuilder took 13796.49 ms. Allocated memory was 107.0 MB in the beginning and 629.1 MB in the end (delta: 522.2 MB). Free memory was 46.8 MB in the beginning and 416.4 MB in the end (delta: -369.6 MB). Peak memory consumption was 240.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,121 INFO L168 Benchmark]: TraceAbstraction took 26482.34 ms. Allocated memory was 629.1 MB in the beginning and 3.1 GB in the end (delta: 2.5 GB). Free memory was 416.4 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. [2021-10-13 07:17:27,125 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 88.1 MB. Free memory was 68.0 MB in the beginning and 68.0 MB in the end (delta: 64.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 779.70 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.2 MB in the beginning and 62.3 MB in the end (delta: -13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.67 ms. Allocated memory is still 107.0 MB. Free memory was 62.3 MB in the beginning and 52.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.40 ms. Allocated memory is still 107.0 MB. Free memory was 52.8 MB in the beginning and 46.8 MB in the end (delta: 6.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 13796.49 ms. Allocated memory was 107.0 MB in the beginning and 629.1 MB in the end (delta: 522.2 MB). Free memory was 46.8 MB in the beginning and 416.4 MB in the end (delta: -369.6 MB). Peak memory consumption was 240.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26482.34 ms. Allocated memory was 629.1 MB in the beginning and 3.1 GB in the end (delta: 2.5 GB). Free memory was 416.4 MB in the beginning and 1.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 1.3 GB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:17:27,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:17:29,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:17:29,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:17:29,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:17:29,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:17:29,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:17:29,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:17:29,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:17:29,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:17:29,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:17:29,664 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:17:29,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:17:29,666 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:17:29,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:17:29,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:17:29,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:17:29,672 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:17:29,673 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:17:29,675 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:17:29,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:17:29,679 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:17:29,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:17:29,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:17:29,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:17:29,687 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:17:29,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:17:29,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:17:29,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:17:29,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:17:29,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:17:29,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:17:29,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:17:29,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:17:29,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:17:29,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:17:29,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:17:29,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:17:29,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:17:29,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:17:29,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:17:29,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:17:29,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:17:29,755 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:17:29,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:17:29,756 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:17:29,756 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:17:29,756 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:17:29,756 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:17:29,757 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:17:29,757 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:17:29,757 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:17:29,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:17:29,758 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:17:29,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:17:29,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:17:29,758 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:17:29,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:17:29,759 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:17:29,759 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:17:29,759 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:17:29,761 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:17:29,761 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:17:29,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:17:29,761 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:17:29,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:17:29,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:17:29,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:17:29,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:17:29,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:17:29,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:17:29,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:17:29,764 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:17:29,764 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:17:29,764 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:17:29,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:17:29,765 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:17:29,765 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:17:29,765 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_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94596b36b24d04639813cccc1625ed66ec56e5fc [2021-10-13 07:17:30,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:17:30,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:17:30,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:17:30,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:17:30,165 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:17:30,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-13 07:17:30,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/73891a256/540d2af51e974af9afffcae48660a5f7/FLAGe10194b18 [2021-10-13 07:17:30,870 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:17:30,872 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c [2021-10-13 07:17:30,887 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/73891a256/540d2af51e974af9afffcae48660a5f7/FLAGe10194b18 [2021-10-13 07:17:31,080 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/data/73891a256/540d2af51e974af9afffcae48660a5f7 [2021-10-13 07:17:31,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:17:31,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:17:31,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:17:31,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:17:31,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:17:31,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:17:31" (1/1) ... [2021-10-13 07:17:31,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aeb6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:31, skipping insertion in model container [2021-10-13 07:17:31,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:17:31" (1/1) ... [2021-10-13 07:17:31,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:17:31,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:17:31,335 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_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-13 07:17:31,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:17:31,749 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:17:31,786 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_6409614c-c747-4c57-a548-403abe3ff0d7/sv-benchmarks/c/eca-rers2012/Problem14_label23.c[3423,3436] [2021-10-13 07:17:31,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:17:32,000 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:17:32,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32 WrapperNode [2021-10-13 07:17:32,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:17:32,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:17:32,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:17:32,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:17:32,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:17:32,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:17:32,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:17:32,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:17:32,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:17:32,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:17:32,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:17:32,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:17:32,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (1/1) ... [2021-10-13 07:17:32,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:17:32,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:17:32,302 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:17:32,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:17:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:17:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:17:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:17:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:17:35,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:17:35,837 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 07:17:35,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:35 BoogieIcfgContainer [2021-10-13 07:17:35,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:17:35,842 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:17:35,842 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:17:35,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:17:35,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:17:31" (1/3) ... [2021-10-13 07:17:35,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cbed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:35, skipping insertion in model container [2021-10-13 07:17:35,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:17:32" (2/3) ... [2021-10-13 07:17:35,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26cbed4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:17:35, skipping insertion in model container [2021-10-13 07:17:35,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:35" (3/3) ... [2021-10-13 07:17:35,848 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label23.c [2021-10-13 07:17:35,853 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:17:35,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:17:35,913 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:17:35,918 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:17:35,918 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:17:35,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:35,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-13 07:17:35,949 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:35,950 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] [2021-10-13 07:17:35,951 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:35,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:35,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1317301102, now seen corresponding path program 1 times [2021-10-13 07:17:35,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:17:35,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700577841] [2021-10-13 07:17:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:35,972 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:17:35,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:17:35,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:17:35,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:17:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:36,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:17:36,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:36,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:17:36,503 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:17:36,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700577841] [2021-10-13 07:17:36,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1700577841] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:17:36,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:17:36,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:17:36,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004071884] [2021-10-13 07:17:36,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:17:36,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:17:36,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:17:36,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:17:36,532 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 states have internal predecessors, (422), 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 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:42,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:17:42,249 INFO L93 Difference]: Finished difference Result 850 states and 1558 transitions. [2021-10-13 07:17:42,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:17:42,250 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 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 32 [2021-10-13 07:17:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:17:42,267 INFO L225 Difference]: With dead ends: 850 [2021-10-13 07:17:42,268 INFO L226 Difference]: Without dead ends: 538 [2021-10-13 07:17:42,271 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:17:42,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-10-13 07:17:42,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-10-13 07:17:42,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 537 states have (on average 1.5381750465549349) internal successors, (826), 537 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:42,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 826 transitions. [2021-10-13 07:17:42,372 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 826 transitions. Word has length 32 [2021-10-13 07:17:42,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:17:42,373 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 826 transitions. [2021-10-13 07:17:42,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:42,373 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 826 transitions. [2021-10-13 07:17:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-10-13 07:17:42,383 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:42,384 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:17:42,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:17:42,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:17:42,585 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:42,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:42,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1787449229, now seen corresponding path program 1 times [2021-10-13 07:17:42,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:17:42,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398296515] [2021-10-13 07:17:42,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:42,590 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:17:42,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:17:42,594 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:17:42,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:17:42,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:42,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:17:42,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:43,325 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 07:17:43,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 07:17:43,899 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:17:43,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398296515] [2021-10-13 07:17:43,899 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398296515] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:17:43,899 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:17:43,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:17:43,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718869667] [2021-10-13 07:17:43,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:17:43,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:17:43,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:17:43,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:17:43,903 INFO L87 Difference]: Start difference. First operand 538 states and 826 transitions. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:17:48,862 INFO L93 Difference]: Finished difference Result 1964 states and 3003 transitions. [2021-10-13 07:17:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:17:48,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 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 167 [2021-10-13 07:17:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:17:48,871 INFO L225 Difference]: With dead ends: 1964 [2021-10-13 07:17:48,872 INFO L226 Difference]: Without dead ends: 1428 [2021-10-13 07:17:48,874 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:17:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2021-10-13 07:17:48,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2021-10-13 07:17:48,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.4218640504555011) internal successors, (2029), 1427 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:48,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 2029 transitions. [2021-10-13 07:17:48,935 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 2029 transitions. Word has length 167 [2021-10-13 07:17:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:17:48,936 INFO L470 AbstractCegarLoop]: Abstraction has 1428 states and 2029 transitions. [2021-10-13 07:17:48,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:17:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 2029 transitions. [2021-10-13 07:17:48,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-10-13 07:17:48,942 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:17:48,943 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, 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] [2021-10-13 07:17:48,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:17:49,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:17:49,158 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:17:49,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:17:49,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1918875903, now seen corresponding path program 1 times [2021-10-13 07:17:49,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:17:49,161 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712521504] [2021-10-13 07:17:49,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:17:49,162 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:17:49,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:17:49,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:17:49,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:17:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:17:49,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:17:49,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:17:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 07:17:49,929 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:17:50,467 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-10-13 07:17:50,468 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:17:50,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712521504] [2021-10-13 07:17:50,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712521504] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:17:50,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:17:50,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-13 07:17:50,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178232119] [2021-10-13 07:17:50,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:17:50,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:17:50,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:17:50,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:17:50,470 INFO L87 Difference]: Start difference. First operand 1428 states and 2029 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:00,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:00,384 INFO L93 Difference]: Finished difference Result 4456 states and 6356 transitions. [2021-10-13 07:18:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:18:00,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 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 170 [2021-10-13 07:18:00,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:00,403 INFO L225 Difference]: With dead ends: 4456 [2021-10-13 07:18:00,403 INFO L226 Difference]: Without dead ends: 3030 [2021-10-13 07:18:00,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 336 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:18:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-13 07:18:00,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-13 07:18:00,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.3202377022119511) internal successors, (3999), 3029 states have internal predecessors, (3999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:00,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3999 transitions. [2021-10-13 07:18:00,494 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3999 transitions. Word has length 170 [2021-10-13 07:18:00,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:00,495 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3999 transitions. [2021-10-13 07:18:00,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:00,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3999 transitions. [2021-10-13 07:18:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-10-13 07:18:00,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:00,499 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, 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] [2021-10-13 07:18:00,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:00,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:18:00,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:00,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:00,713 INFO L82 PathProgramCache]: Analyzing trace with hash 872689753, now seen corresponding path program 1 times [2021-10-13 07:18:00,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:18:00,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291303880] [2021-10-13 07:18:00,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:00,716 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:18:00,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:18:00,717 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:18:00,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:18:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:18:00,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:18:00,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:18:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 07:18:02,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:18:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 07:18:04,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:18:04,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291303880] [2021-10-13 07:18:04,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291303880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:18:04,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:18:04,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-13 07:18:04,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593007135] [2021-10-13 07:18:04,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:18:04,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:18:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:18:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:18:04,203 INFO L87 Difference]: Start difference. First operand 3030 states and 3999 transitions. Second operand has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:11,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:11,064 INFO L93 Difference]: Finished difference Result 6116 states and 8102 transitions. [2021-10-13 07:18:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:18:11,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 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 191 [2021-10-13 07:18:11,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:11,083 INFO L225 Difference]: With dead ends: 6116 [2021-10-13 07:18:11,083 INFO L226 Difference]: Without dead ends: 3208 [2021-10-13 07:18:11,087 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 52.9ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:18:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2021-10-13 07:18:11,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2021-10-13 07:18:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2852 states, 2851 states have (on average 1.1301297790249036) internal successors, (3222), 2851 states have internal predecessors, (3222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:11,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3222 transitions. [2021-10-13 07:18:11,194 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3222 transitions. Word has length 191 [2021-10-13 07:18:11,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:11,195 INFO L470 AbstractCegarLoop]: Abstraction has 2852 states and 3222 transitions. [2021-10-13 07:18:11,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.166666666666664) internal successors, (301), 5 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:11,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3222 transitions. [2021-10-13 07:18:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-10-13 07:18:11,204 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:11,205 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2021-10-13 07:18:11,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:11,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:18:11,420 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:11,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:11,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1551335768, now seen corresponding path program 1 times [2021-10-13 07:18:11,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:18:11,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169767206] [2021-10-13 07:18:11,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:11,425 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:18:11,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:18:11,426 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:18:11,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:18:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:18:12,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:18:12,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:18:14,063 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-10-13 07:18:14,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:18:17,112 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 335 proven. 105 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2021-10-13 07:18:17,113 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:18:17,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169767206] [2021-10-13 07:18:17,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169767206] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:18:17,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:18:17,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:18:17,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941072820] [2021-10-13 07:18:17,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:18:17,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:18:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:18:17,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:18:17,116 INFO L87 Difference]: Start difference. First operand 2852 states and 3222 transitions. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:18,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:18,805 INFO L93 Difference]: Finished difference Result 5702 states and 6444 transitions. [2021-10-13 07:18:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:18:18,816 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 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 406 [2021-10-13 07:18:18,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:18,838 INFO L225 Difference]: With dead ends: 5702 [2021-10-13 07:18:18,838 INFO L226 Difference]: Without dead ends: 3030 [2021-10-13 07:18:18,842 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 810 GetRequests, 806 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 41.4ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:18:18,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-10-13 07:18:18,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 3030. [2021-10-13 07:18:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3030 states, 3029 states have (on average 1.1231429514691318) internal successors, (3402), 3029 states have internal predecessors, (3402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:18,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3030 states to 3030 states and 3402 transitions. [2021-10-13 07:18:18,925 INFO L78 Accepts]: Start accepts. Automaton has 3030 states and 3402 transitions. Word has length 406 [2021-10-13 07:18:18,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:18,927 INFO L470 AbstractCegarLoop]: Abstraction has 3030 states and 3402 transitions. [2021-10-13 07:18:18,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:18,927 INFO L276 IsEmpty]: Start isEmpty. Operand 3030 states and 3402 transitions. [2021-10-13 07:18:18,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-10-13 07:18:18,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:18,941 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:18:18,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:19,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:18:19,161 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:19,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:19,162 INFO L82 PathProgramCache]: Analyzing trace with hash -719715171, now seen corresponding path program 1 times [2021-10-13 07:18:19,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:18:19,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654737378] [2021-10-13 07:18:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:19,166 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:18:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:18:19,168 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:18:19,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 07:18:20,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:18:20,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 07:18:20,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:18:22,239 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 415 proven. 347 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-10-13 07:18:22,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:18:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 965 backedges. 762 proven. 0 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2021-10-13 07:18:26,219 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:18:26,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654737378] [2021-10-13 07:18:26,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654737378] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:18:26,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:18:26,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-10-13 07:18:26,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305775463] [2021-10-13 07:18:26,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:18:26,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:18:26,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:18:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:18:26,225 INFO L87 Difference]: Start difference. First operand 3030 states and 3402 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:30,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:18:30,100 INFO L93 Difference]: Finished difference Result 6236 states and 7047 transitions. [2021-10-13 07:18:30,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:18:30,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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 501 [2021-10-13 07:18:30,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:18:30,118 INFO L225 Difference]: With dead ends: 6236 [2021-10-13 07:18:30,118 INFO L226 Difference]: Without dead ends: 3564 [2021-10-13 07:18:30,122 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1000 GetRequests, 997 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:18:30,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-10-13 07:18:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3386. [2021-10-13 07:18:30,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3386 states, 3385 states have (on average 1.103397341211226) internal successors, (3735), 3385 states have internal predecessors, (3735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 3735 transitions. [2021-10-13 07:18:30,199 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 3735 transitions. Word has length 501 [2021-10-13 07:18:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:18:30,201 INFO L470 AbstractCegarLoop]: Abstraction has 3386 states and 3735 transitions. [2021-10-13 07:18:30,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:18:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 3735 transitions. [2021-10-13 07:18:30,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2021-10-13 07:18:30,228 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:18:30,229 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:18:30,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 07:18:30,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:18:30,446 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:18:30,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:18:30,447 INFO L82 PathProgramCache]: Analyzing trace with hash -335115246, now seen corresponding path program 1 times [2021-10-13 07:18:30,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:18:30,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2084220184] [2021-10-13 07:18:30,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:18:30,451 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:18:30,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:18:30,452 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:18:30,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 07:18:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:18:31,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-13 07:18:31,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:18:41,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 955 proven. 707 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-10-13 07:18:41,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:00,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1482 proven. 180 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-10-13 07:19:00,966 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:00,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2084220184] [2021-10-13 07:19:00,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2084220184] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:00,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [912199259] [2021-10-13 07:19:00,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:00,967 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:19:00,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:19:00,971 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:19:00,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-10-13 07:19:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:04,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:19:04,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:09,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1211 proven. 241 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-10-13 07:19:09,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:12,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1211 proven. 241 refuted. 0 times theorem prover too weak. 443 trivial. 0 not checked. [2021-10-13 07:19:12,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [912199259] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:12,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824583847] [2021-10-13 07:19:12,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:12,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:12,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:12,790 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:19:12,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-13 07:19:17,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:17,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:19:17,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:22,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1190 proven. 93 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-13 07:19:22,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:27,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 1190 proven. 93 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2021-10-13 07:19:27,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824583847] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:27,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:19:27,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 6, 4, 4] total 25 [2021-10-13 07:19:27,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93777644] [2021-10-13 07:19:27,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-13 07:19:27,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:27,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-13 07:19:27,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2021-10-13 07:19:27,566 INFO L87 Difference]: Start difference. First operand 3386 states and 3735 transitions. Second operand has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:42,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:42,616 INFO L93 Difference]: Finished difference Result 7496 states and 8223 transitions. [2021-10-13 07:19:42,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-13 07:19:42,617 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 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 740 [2021-10-13 07:19:42,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:42,638 INFO L225 Difference]: With dead ends: 7496 [2021-10-13 07:19:42,639 INFO L226 Difference]: Without dead ends: 4272 [2021-10-13 07:19:42,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4468 GetRequests, 4422 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 2488.0ms TimeCoverageRelationStatistics Valid=514, Invalid=1742, Unknown=0, NotChecked=0, Total=2256 [2021-10-13 07:19:42,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2021-10-13 07:19:42,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 3363. [2021-10-13 07:19:42,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 3362 states have (on average 1.0755502676977988) internal successors, (3616), 3362 states have internal predecessors, (3616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:42,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 3616 transitions. [2021-10-13 07:19:42,726 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 3616 transitions. Word has length 740 [2021-10-13 07:19:42,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:42,727 INFO L470 AbstractCegarLoop]: Abstraction has 3363 states and 3616 transitions. [2021-10-13 07:19:42,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 58.88) internal successors, (1472), 25 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 3616 transitions. [2021-10-13 07:19:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2021-10-13 07:19:42,738 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:42,738 INFO L512 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:42,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:42,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-10-13 07:19:43,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:43,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:43,360 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:19:43,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:43,360 INFO L82 PathProgramCache]: Analyzing trace with hash 953445596, now seen corresponding path program 1 times [2021-10-13 07:19:43,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:43,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886026179] [2021-10-13 07:19:43,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:43,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:43,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:43,366 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:43,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 07:19:47,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:47,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:19:47,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 842 proven. 898 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2021-10-13 07:19:50,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:55,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2086 backedges. 1320 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2021-10-13 07:19:55,983 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:55,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886026179] [2021-10-13 07:19:55,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [886026179] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-13 07:19:55,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-13 07:19:55,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2021-10-13 07:19:55,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393008114] [2021-10-13 07:19:55,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:19:55,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:55,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:19:55,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:55,987 INFO L87 Difference]: Start difference. First operand 3363 states and 3616 transitions. Second operand has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:00,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:00,798 INFO L93 Difference]: Finished difference Result 7258 states and 7857 transitions. [2021-10-13 07:20:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:20:00,798 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 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 808 [2021-10-13 07:20:00,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:00,817 INFO L225 Difference]: With dead ends: 7258 [2021-10-13 07:20:00,817 INFO L226 Difference]: Without dead ends: 4075 [2021-10-13 07:20:00,821 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1614 GetRequests, 1610 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 41.8ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:20:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2021-10-13 07:20:00,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 3541. [2021-10-13 07:20:00,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3541 states, 3540 states have (on average 1.0754237288135593) internal successors, (3807), 3540 states have internal predecessors, (3807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:00,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 3807 transitions. [2021-10-13 07:20:00,919 INFO L78 Accepts]: Start accepts. Automaton has 3541 states and 3807 transitions. Word has length 808 [2021-10-13 07:20:00,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:00,921 INFO L470 AbstractCegarLoop]: Abstraction has 3541 states and 3807 transitions. [2021-10-13 07:20:00,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.33333333333334) internal successors, (391), 3 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:00,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3541 states and 3807 transitions. [2021-10-13 07:20:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2021-10-13 07:20:00,932 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:00,933 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:20:00,963 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:01,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:01,156 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:01,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:01,156 INFO L82 PathProgramCache]: Analyzing trace with hash 488498908, now seen corresponding path program 1 times [2021-10-13 07:20:01,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:01,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1945432414] [2021-10-13 07:20:01,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:01,160 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:01,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:01,161 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:01,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:20:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:06,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 07:20:06,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2021-10-13 07:20:08,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:10,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2443 backedges. 1110 proven. 0 refuted. 0 times theorem prover too weak. 1333 trivial. 0 not checked. [2021-10-13 07:20:10,590 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:10,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1945432414] [2021-10-13 07:20:10,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1945432414] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:20:10,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:20:10,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:20:10,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753556425] [2021-10-13 07:20:10,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:20:10,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:20:10,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:20:10,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:10,593 INFO L87 Difference]: Start difference. First operand 3541 states and 3807 transitions. Second operand has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:14,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:14,076 INFO L93 Difference]: Finished difference Result 7258 states and 7836 transitions. [2021-10-13 07:20:14,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:20:14,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 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 817 [2021-10-13 07:20:14,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:14,099 INFO L225 Difference]: With dead ends: 7258 [2021-10-13 07:20:14,100 INFO L226 Difference]: Without dead ends: 3897 [2021-10-13 07:20:14,104 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1632 GetRequests, 1630 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:20:14,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3897 states. [2021-10-13 07:20:14,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3897 to 3719. [2021-10-13 07:20:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.0712748789671867) internal successors, (3983), 3718 states have internal predecessors, (3983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:14,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 3983 transitions. [2021-10-13 07:20:14,195 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 3983 transitions. Word has length 817 [2021-10-13 07:20:14,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:14,197 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 3983 transitions. [2021-10-13 07:20:14,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.75) internal successors, (391), 4 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:20:14,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 3983 transitions. [2021-10-13 07:20:14,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2021-10-13 07:20:14,208 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:14,209 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:20:14,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:14,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:14,424 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:20:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:14,425 INFO L82 PathProgramCache]: Analyzing trace with hash 960870671, now seen corresponding path program 1 times [2021-10-13 07:20:14,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:14,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716439761] [2021-10-13 07:20:14,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:14,431 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:14,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:14,433 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:14,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-13 07:20:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:19,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:20:19,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 525 proven. 1594 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2021-10-13 07:20:22,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 1416 proven. 130 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-10-13 07:20:38,798 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:38,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716439761] [2021-10-13 07:20:38,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1716439761] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:20:38,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1237770866] [2021-10-13 07:20:38,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:38,799 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:20:38,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:20:38,799 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:20:38,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-13 07:20:46,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:46,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:20:46,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:49,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 698 proven. 30 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-13 07:20:49,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:51,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 704 proven. 24 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-13 07:20:51,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1237770866] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:20:51,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123649392] [2021-10-13 07:20:51,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:51,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:20:51,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:20:51,758 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:20:51,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-13 07:20:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:58,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:20:58,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-13 07:21:02,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 2491 backedges. 728 proven. 0 refuted. 0 times theorem prover too weak. 1763 trivial. 0 not checked. [2021-10-13 07:21:07,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123649392] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:07,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-13 07:21:07,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [6, 5, 7, 7] total 23 [2021-10-13 07:21:07,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418108164] [2021-10-13 07:21:07,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-13 07:21:07,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:07,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-13 07:21:07,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2021-10-13 07:21:07,052 INFO L87 Difference]: Start difference. First operand 3719 states and 3983 transitions. Second operand has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:09,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:09,742 INFO L93 Difference]: Finished difference Result 5373 states and 5812 transitions. [2021-10-13 07:21:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:21:09,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 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 826 [2021-10-13 07:21:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:09,758 INFO L225 Difference]: With dead ends: 5373 [2021-10-13 07:21:09,758 INFO L226 Difference]: Without dead ends: 3719 [2021-10-13 07:21:09,760 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4950 GetRequests, 4927 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 3169.1ms TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2021-10-13 07:21:09,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2021-10-13 07:21:09,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3719. [2021-10-13 07:21:09,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3719 states, 3718 states have (on average 1.064550833781603) internal successors, (3958), 3718 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:09,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3719 states to 3719 states and 3958 transitions. [2021-10-13 07:21:09,823 INFO L78 Accepts]: Start accepts. Automaton has 3719 states and 3958 transitions. Word has length 826 [2021-10-13 07:21:09,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:09,824 INFO L470 AbstractCegarLoop]: Abstraction has 3719 states and 3958 transitions. [2021-10-13 07:21:09,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 40.285714285714285) internal successors, (282), 6 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:09,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3719 states and 3958 transitions. [2021-10-13 07:21:09,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2021-10-13 07:21:09,849 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:21:09,849 INFO L512 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:21:09,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:10,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2021-10-13 07:21:10,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:10,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:10,469 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:21:10,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:21:10,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2117747245, now seen corresponding path program 1 times [2021-10-13 07:21:10,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:21:10,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662993702] [2021-10-13 07:21:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:10,473 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:21:10,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:21:10,474 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:21:10,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-13 07:21:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:16,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-13 07:21:16,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 2066 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2021-10-13 07:21:19,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 1662 proven. 70 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-10-13 07:21:24,837 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:21:24,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662993702] [2021-10-13 07:21:24,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662993702] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:21:24,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [742917207] [2021-10-13 07:21:24,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:21:24,838 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:21:24,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:21:24,839 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:21:24,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-10-13 07:21:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:21:34,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:21:34,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:21:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 2437 trivial. 0 not checked. [2021-10-13 07:21:36,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:37,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2676 backedges. 239 proven. 0 refuted. 0 times theorem prover too weak. 2437 trivial. 0 not checked. [2021-10-13 07:21:37,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [742917207] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:21:37,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-13 07:21:37,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6, 5] total 12 [2021-10-13 07:21:37,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681230317] [2021-10-13 07:21:37,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:21:37,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:21:37,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:21:37,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:21:37,465 INFO L87 Difference]: Start difference. First operand 3719 states and 3958 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:41,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:21:41,028 INFO L93 Difference]: Finished difference Result 8324 states and 8911 transitions. [2021-10-13 07:21:41,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:21:41,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 923 [2021-10-13 07:21:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:21:41,030 INFO L225 Difference]: With dead ends: 8324 [2021-10-13 07:21:41,031 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:21:41,036 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3688 GetRequests, 3678 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 341.9ms TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-10-13 07:21:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:21:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:21:41,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:21:41,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 923 [2021-10-13 07:21:41,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:21:41,037 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:21:41,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:21:41,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:21:41,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:21:41,040 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:21:41,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-10-13 07:21:41,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-10-13 07:21:41,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:21:41,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:21:41,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:41,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:41,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:21:43,940 INFO L857 garLoopResultBuilder]: For program point L762(lines 762 880) no Hoare annotation was computed. [2021-10-13 07:21:43,940 INFO L857 garLoopResultBuilder]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-13 07:21:43,941 INFO L857 garLoopResultBuilder]: For program point L829(lines 829 880) no Hoare annotation was computed. [2021-10-13 07:21:43,941 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 880) no Hoare annotation was computed. [2021-10-13 07:21:43,941 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 880) no Hoare annotation was computed. [2021-10-13 07:21:43,941 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,941 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,942 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,942 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 880) no Hoare annotation was computed. [2021-10-13 07:21:43,942 INFO L857 garLoopResultBuilder]: For program point L500(lines 500 880) no Hoare annotation was computed. [2021-10-13 07:21:43,942 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:21:43,942 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L369(lines 369 880) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 880) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L436(lines 436 880) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,943 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,945 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,945 INFO L857 garLoopResultBuilder]: For program point L239(lines 239 880) no Hoare annotation was computed. [2021-10-13 07:21:43,945 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-13 07:21:43,945 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-13 07:21:43,946 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-13 07:21:43,946 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 880) no Hoare annotation was computed. [2021-10-13 07:21:43,946 INFO L857 garLoopResultBuilder]: For program point L636(lines 636 880) no Hoare annotation was computed. [2021-10-13 07:21:43,946 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 880) no Hoare annotation was computed. [2021-10-13 07:21:43,946 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 880) no Hoare annotation was computed. [2021-10-13 07:21:43,947 INFO L857 garLoopResultBuilder]: For program point L505(lines 505 880) no Hoare annotation was computed. [2021-10-13 07:21:43,947 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,947 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,947 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,947 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 880) no Hoare annotation was computed. [2021-10-13 07:21:43,948 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:21:43,948 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-13 07:21:43,948 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-13 07:21:43,948 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 880) no Hoare annotation was computed. [2021-10-13 07:21:43,948 INFO L857 garLoopResultBuilder]: For program point L442(lines 442 880) no Hoare annotation was computed. [2021-10-13 07:21:43,949 INFO L857 garLoopResultBuilder]: For program point L376(lines 376 880) no Hoare annotation was computed. [2021-10-13 07:21:43,949 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,949 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,949 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,949 INFO L857 garLoopResultBuilder]: For program point L245(lines 245 880) no Hoare annotation was computed. [2021-10-13 07:21:43,950 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-13 07:21:43,951 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-13 07:21:43,951 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-13 07:21:43,951 INFO L857 garLoopResultBuilder]: For program point L774(lines 774 880) no Hoare annotation was computed. [2021-10-13 07:21:43,951 INFO L857 garLoopResultBuilder]: For program point L642(lines 642 880) no Hoare annotation was computed. [2021-10-13 07:21:43,951 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 880) no Hoare annotation was computed. [2021-10-13 07:21:43,952 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 880) no Hoare annotation was computed. [2021-10-13 07:21:43,952 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,952 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L710(lines 710 880) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L578(lines 578 880) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-13 07:21:43,953 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-13 07:21:43,954 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 880) no Hoare annotation was computed. [2021-10-13 07:21:43,954 INFO L857 garLoopResultBuilder]: For program point L448(lines 448 880) no Hoare annotation was computed. [2021-10-13 07:21:43,954 INFO L857 garLoopResultBuilder]: For program point L382(lines 382 880) no Hoare annotation was computed. [2021-10-13 07:21:43,954 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,954 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,955 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,955 INFO L857 garLoopResultBuilder]: For program point L251(lines 251 880) no Hoare annotation was computed. [2021-10-13 07:21:43,955 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-13 07:21:43,955 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-13 07:21:43,955 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L648(lines 648 880) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L516(lines 516 880) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L847(lines 847 880) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L781(lines 781 880) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L583(lines 583 880) no Hoare annotation was computed. [2021-10-13 07:21:43,956 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,957 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,957 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,958 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 880) no Hoare annotation was computed. [2021-10-13 07:21:43,958 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-13 07:21:43,958 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-13 07:21:43,959 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-13 07:21:43,959 INFO L857 garLoopResultBuilder]: For program point L321(lines 321 880) no Hoare annotation was computed. [2021-10-13 07:21:43,959 INFO L857 garLoopResultBuilder]: For program point L454(lines 454 880) no Hoare annotation was computed. [2021-10-13 07:21:43,959 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 880) no Hoare annotation was computed. [2021-10-13 07:21:43,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:21:43,960 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,960 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,960 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,960 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 880) no Hoare annotation was computed. [2021-10-13 07:21:43,960 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-13 07:21:43,961 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-13 07:21:43,961 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-13 07:21:43,961 INFO L857 garLoopResultBuilder]: For program point L852(lines 852 880) no Hoare annotation was computed. [2021-10-13 07:21:43,961 INFO L857 garLoopResultBuilder]: For program point L654(lines 654 880) no Hoare annotation was computed. [2021-10-13 07:21:43,961 INFO L857 garLoopResultBuilder]: For program point L522(lines 522 880) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L787(lines 787 880) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L589(lines 589 880) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,962 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 880) no Hoare annotation was computed. [2021-10-13 07:21:43,963 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-13 07:21:43,963 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-13 07:21:43,963 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 07:21:43,963 INFO L857 garLoopResultBuilder]: For program point L459(lines 459 880) no Hoare annotation was computed. [2021-10-13 07:21:43,963 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 880) no Hoare annotation was computed. [2021-10-13 07:21:43,966 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 880) no Hoare annotation was computed. [2021-10-13 07:21:43,966 INFO L857 garLoopResultBuilder]: For program point L262(lines 262 880) no Hoare annotation was computed. [2021-10-13 07:21:43,966 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,967 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,967 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,967 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-13 07:21:43,967 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-13 07:21:43,967 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-13 07:21:43,968 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:21:43,968 INFO L857 garLoopResultBuilder]: For program point L858(lines 858 880) no Hoare annotation was computed. [2021-10-13 07:21:43,968 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2021-10-13 07:21:43,968 INFO L857 garLoopResultBuilder]: For program point L660(lines 660 880) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L528(lines 528 880) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L793(lines 793 880) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L595(lines 595 880) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,969 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,970 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 880) no Hoare annotation was computed. [2021-10-13 07:21:43,970 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 880) no Hoare annotation was computed. [2021-10-13 07:21:43,970 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-13 07:21:43,970 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-13 07:21:43,970 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-13 07:21:43,971 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 880) no Hoare annotation was computed. [2021-10-13 07:21:43,971 INFO L857 garLoopResultBuilder]: For program point L400(lines 400 880) no Hoare annotation was computed. [2021-10-13 07:21:43,971 INFO L857 garLoopResultBuilder]: For program point L268(lines 268 880) no Hoare annotation was computed. [2021-10-13 07:21:43,971 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,971 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,972 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,972 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-13 07:21:43,972 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-13 07:21:43,972 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-13 07:21:43,972 INFO L857 garLoopResultBuilder]: For program point L864(lines 864 880) no Hoare annotation was computed. [2021-10-13 07:21:43,973 INFO L857 garLoopResultBuilder]: For program point L666(lines 666 880) no Hoare annotation was computed. [2021-10-13 07:21:43,973 INFO L857 garLoopResultBuilder]: For program point L534(lines 534 880) no Hoare annotation was computed. [2021-10-13 07:21:43,973 INFO L857 garLoopResultBuilder]: For program point L799(lines 799 880) no Hoare annotation was computed. [2021-10-13 07:21:43,973 INFO L857 garLoopResultBuilder]: For program point L601(lines 601 880) no Hoare annotation was computed. [2021-10-13 07:21:43,974 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,974 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,974 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,974 INFO L857 garLoopResultBuilder]: For program point L734(lines 734 880) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 880) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 880) no Hoare annotation was computed. [2021-10-13 07:21:43,975 INFO L857 garLoopResultBuilder]: For program point L406(lines 406 880) no Hoare annotation was computed. [2021-10-13 07:21:43,976 INFO L857 garLoopResultBuilder]: For program point L274(lines 274 880) no Hoare annotation was computed. [2021-10-13 07:21:43,976 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,976 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,976 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,976 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 880) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L672(lines 672 880) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L540(lines 540 880) no Hoare annotation was computed. [2021-10-13 07:21:43,977 INFO L857 garLoopResultBuilder]: For program point L805(lines 805 880) no Hoare annotation was computed. [2021-10-13 07:21:43,978 INFO L857 garLoopResultBuilder]: For program point L607(lines 607 880) no Hoare annotation was computed. [2021-10-13 07:21:43,978 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,978 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,978 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,978 INFO L857 garLoopResultBuilder]: For program point L740(lines 740 880) no Hoare annotation was computed. [2021-10-13 07:21:43,979 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-13 07:21:43,979 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-13 07:21:43,979 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 07:21:43,979 INFO L857 garLoopResultBuilder]: For program point L477(lines 477 880) no Hoare annotation was computed. [2021-10-13 07:21:43,979 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 880) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L279(lines 279 880) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 880) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 880) no Hoare annotation was computed. [2021-10-13 07:21:43,980 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-13 07:21:43,981 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-13 07:21:43,981 INFO L857 garLoopResultBuilder]: For program point L678(lines 678 880) no Hoare annotation was computed. [2021-10-13 07:21:43,981 INFO L857 garLoopResultBuilder]: For program point L546(lines 546 880) no Hoare annotation was computed. [2021-10-13 07:21:43,981 INFO L857 garLoopResultBuilder]: For program point L811(lines 811 880) no Hoare annotation was computed. [2021-10-13 07:21:43,981 INFO L857 garLoopResultBuilder]: For program point L745(lines 745 880) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 880) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point L482(lines 482 880) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:21:43,982 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-13 07:21:43,983 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-13 07:21:43,983 INFO L857 garLoopResultBuilder]: For program point L351(lines 351 880) no Hoare annotation was computed. [2021-10-13 07:21:43,983 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 880) no Hoare annotation was computed. [2021-10-13 07:21:43,983 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 880) no Hoare annotation was computed. [2021-10-13 07:21:43,983 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,984 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,984 INFO L853 garLoopResultBuilder]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) ~a24~0)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse2 (= (_ bv6 32) ~a21~0)) (.cse7 (not (= ~a15~0 (_ bv9 32))))) (let ((.cse4 (not (= (_ bv10 32) ~a21~0))) (.cse0 (or (not .cse2) .cse7)) (.cse1 (not (= (_ bv6 32) ~a15~0))) (.cse8 (or (not .cse5) (not .cse6))) (.cse3 (not (bvslt (_ bv11 32) ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse5 .cse6) (and .cse4 (or .cse7 (not (bvsle ~a12~0 (_ bv4294967253 32)))) .cse5 .cse8) (and .cse0 .cse1 .cse5 .cse8) (and (not (= ~a21~0 (_ bv9 32))) (or (not (bvsge (_ bv80 32) ~a12~0)) .cse3) (not (= (_ bv7 32) ~a21~0)) .cse5 .cse6) (and (bvslt (_ bv4294967253 32) ~a12~0) .cse5 .cse3)))) [2021-10-13 07:21:43,984 INFO L857 garLoopResultBuilder]: For program point L551(lines 551 880) no Hoare annotation was computed. [2021-10-13 07:21:43,985 INFO L857 garLoopResultBuilder]: For program point L221(lines 221 880) no Hoare annotation was computed. [2021-10-13 07:21:43,985 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-13 07:21:43,985 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-13 07:21:43,985 INFO L857 garLoopResultBuilder]: For program point L684(lines 684 880) no Hoare annotation was computed. [2021-10-13 07:21:43,985 INFO L857 garLoopResultBuilder]: For program point L817(lines 817 880) no Hoare annotation was computed. [2021-10-13 07:21:43,986 INFO L857 garLoopResultBuilder]: For program point L751(lines 751 880) no Hoare annotation was computed. [2021-10-13 07:21:43,986 INFO L857 garLoopResultBuilder]: For program point L619(lines 619 880) no Hoare annotation was computed. [2021-10-13 07:21:43,986 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,986 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,986 INFO L860 garLoopResultBuilder]: At program point L884(lines 884 900) the Hoare annotation is: true [2021-10-13 07:21:43,987 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 880) no Hoare annotation was computed. [2021-10-13 07:21:43,987 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 880) no Hoare annotation was computed. [2021-10-13 07:21:43,987 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-13 07:21:43,987 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-13 07:21:43,987 INFO L857 garLoopResultBuilder]: For program point L687(lines 687 880) no Hoare annotation was computed. [2021-10-13 07:21:43,988 INFO L857 garLoopResultBuilder]: For program point L357(lines 357 880) no Hoare annotation was computed. [2021-10-13 07:21:43,988 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 880) no Hoare annotation was computed. [2021-10-13 07:21:43,988 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,988 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,988 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L557(lines 557 880) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L227(lines 227 880) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L757(lines 757 880) no Hoare annotation was computed. [2021-10-13 07:21:43,989 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 880) no Hoare annotation was computed. [2021-10-13 07:21:43,990 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,990 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,990 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-13 07:21:43,990 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,990 INFO L857 garLoopResultBuilder]: For program point L824(lines 824 880) no Hoare annotation was computed. [2021-10-13 07:21:43,992 INFO L853 garLoopResultBuilder]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse5 (= (_ bv1 32) ~a24~0)) (.cse6 (= (_ bv8 32) ~a15~0)) (.cse2 (= (_ bv6 32) ~a21~0)) (.cse7 (not (= ~a15~0 (_ bv9 32))))) (let ((.cse4 (not (= (_ bv10 32) ~a21~0))) (.cse0 (or (not .cse2) .cse7)) (.cse1 (not (= (_ bv6 32) ~a15~0))) (.cse8 (or (not .cse5) (not .cse6))) (.cse3 (not (bvslt (_ bv11 32) ~a12~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 (not (bvslt (_ bv80 32) ~a12~0)) .cse5 .cse6) (and .cse4 (or .cse7 (not (bvsle ~a12~0 (_ bv4294967253 32)))) .cse5 .cse8) (and .cse0 .cse1 .cse5 .cse8) (and (not (= ~a21~0 (_ bv9 32))) (or (not (bvsge (_ bv80 32) ~a12~0)) .cse3) (not (= (_ bv7 32) ~a21~0)) .cse5 .cse6) (and (bvslt (_ bv4294967253 32) ~a12~0) .cse5 .cse3)))) [2021-10-13 07:21:43,993 INFO L857 garLoopResultBuilder]: For program point L494(lines 494 880) no Hoare annotation was computed. [2021-10-13 07:21:43,993 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 880) no Hoare annotation was computed. [2021-10-13 07:21:43,993 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-13 07:21:43,993 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-13 07:21:43,993 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-13 07:21:43,994 INFO L857 garLoopResultBuilder]: For program point L693(lines 693 880) no Hoare annotation was computed. [2021-10-13 07:21:43,994 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 880) no Hoare annotation was computed. [2021-10-13 07:21:43,994 INFO L857 garLoopResultBuilder]: For program point L562(lines 562 880) no Hoare annotation was computed. [2021-10-13 07:21:43,994 INFO L857 garLoopResultBuilder]: For program point L430(lines 430 880) no Hoare annotation was computed. [2021-10-13 07:21:43,994 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,995 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,995 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2021-10-13 07:21:43,995 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 880) no Hoare annotation was computed. [2021-10-13 07:21:43,995 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-13 07:21:43,995 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-13 07:21:43,996 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-13 07:21:44,001 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:21:44,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:21:44 BoogieIcfgContainer [2021-10-13 07:21:44,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:21:44,055 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:21:44,055 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:21:44,056 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:21:44,056 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:17:35" (3/4) ... [2021-10-13 07:21:44,060 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:21:44,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 07:21:44,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 07:21:44,109 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:44,111 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:21:44,319 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:21:44,319 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:21:44,321 INFO L168 Benchmark]: Toolchain (without parser) took 253235.92 ms. Allocated memory was 62.9 MB in the beginning and 589.3 MB in the end (delta: 526.4 MB). Free memory was 40.3 MB in the beginning and 194.3 MB in the end (delta: -154.0 MB). Peak memory consumption was 474.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,322 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:21:44,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.44 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.1 MB in the beginning and 54.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,323 INFO L168 Benchmark]: Boogie Procedure Inliner took 140.16 ms. Allocated memory is still 81.8 MB. Free memory was 54.5 MB in the beginning and 48.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,323 INFO L168 Benchmark]: Boogie Preprocessor took 124.81 ms. Allocated memory is still 81.8 MB. Free memory was 48.1 MB in the beginning and 43.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,324 INFO L168 Benchmark]: RCFGBuilder took 3569.82 ms. Allocated memory is still 81.8 MB. Free memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,324 INFO L168 Benchmark]: TraceAbstraction took 248212.39 ms. Allocated memory was 81.8 MB in the beginning and 589.3 MB in the end (delta: 507.5 MB). Free memory was 44.1 MB in the beginning and 104.9 MB in the end (delta: -60.8 MB). Peak memory consumption was 457.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,325 INFO L168 Benchmark]: Witness Printer took 264.69 ms. Allocated memory is still 589.3 MB. Free memory was 104.9 MB in the beginning and 194.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:21:44,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 42.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 917.44 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 40.1 MB in the beginning and 54.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 140.16 ms. Allocated memory is still 81.8 MB. Free memory was 54.5 MB in the beginning and 48.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 124.81 ms. Allocated memory is still 81.8 MB. Free memory was 48.1 MB in the beginning and 43.0 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3569.82 ms. Allocated memory is still 81.8 MB. Free memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 248212.39 ms. Allocated memory was 81.8 MB in the beginning and 589.3 MB in the end (delta: 507.5 MB). Free memory was 44.1 MB in the beginning and 104.9 MB in the end (delta: -60.8 MB). Peak memory consumption was 457.0 MB. Max. memory is 16.1 GB. * Witness Printer took 264.69 ms. Allocated memory is still 589.3 MB. Free memory was 104.9 MB in the beginning and 194.3 MB in the end (delta: -89.4 MB). Peak memory consumption was 13.3 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: 110]: 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, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 248089.8ms, OverallIterations: 11, TraceHistogramMax: 9, EmptinessCheckTime: 132.0ms, AutomataDifference: 62884.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2483.5ms, InitialAbstractionConstructionTime: 19.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 397 SDtfs, 4021 SDslu, 230 SDs, 0 SdLazy, 17051 SolverSat, 1675 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 52241.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19274 GetRequests, 19172 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 6216.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3719occurred in iteration=9, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 838.7ms AutomataMinimizationTime, 11 MinimizatonAttempts, 2155 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 66 NumberOfFragments, 249 HoareAnnotationTreeSize, 3 FomulaSimplifications, 4160 FormulaSimplificationTreeSizeReduction, 664.1ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 6454 FormulaSimplificationTreeSizeReductionInter, 1807.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 456.9ms SsaConstructionTime, 3688.3ms SatisfiabilityAnalysisTime, 121779.5ms InterpolantComputationTime, 9636 NumberOfCodeBlocks, 9636 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 19240 ConstructedInterpolants, 0 QuantifiedInterpolants, 87540 SizeOfPredicates, 46 NumberOfNonLiveVariables, 11004 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 32 InterpolantComputations, 17 PerfectInterpolantSequences, 43099/49918 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: 30]: Loop Invariant Derived loop invariant: ((((((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 6bv32 == a21) && !~bvslt32(11bv32, a12)) || (((!(10bv32 == a21) && !~bvslt32(80bv32, a12)) && 1bv32 == a24) && 8bv32 == a15)) || (((!(10bv32 == a21) && (!(a15 == 9bv32) || !~bvsle32(a12, 4294967253bv32))) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(a21 == 9bv32) && (!~bvsge32(80bv32, a12) || !~bvslt32(11bv32, a12))) && !(7bv32 == a21)) && 1bv32 == a24) && 8bv32 == a15)) || ((~bvslt32(4294967253bv32, a12) && 1bv32 == a24) && !~bvslt32(11bv32, a12)) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 6bv32 == a21) && !~bvslt32(11bv32, a12)) || (((!(10bv32 == a21) && !~bvslt32(80bv32, a12)) && 1bv32 == a24) && 8bv32 == a15)) || (((!(10bv32 == a21) && (!(a15 == 9bv32) || !~bvsle32(a12, 4294967253bv32))) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(6bv32 == a21) || !(a15 == 9bv32)) && !(6bv32 == a15)) && 1bv32 == a24) && (!(1bv32 == a24) || !(8bv32 == a15)))) || ((((!(a21 == 9bv32) && (!~bvsge32(80bv32, a12) || !~bvslt32(11bv32, a12))) && !(7bv32 == a21)) && 1bv32 == a24) && 8bv32 == a15)) || ((~bvslt32(4294967253bv32, a12) && 1bv32 == a24) && !~bvslt32(11bv32, a12)) RESULT: Ultimate proved your program to be correct! [2021-10-13 07:21:44,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6409614c-c747-4c57-a548-403abe3ff0d7/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...