./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan --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 42e771c9087339edfe48c6fa50d83cff938a7802 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label07.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan --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 42e771c9087339edfe48c6fa50d83cff938a7802 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:10:02,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:10:02,597 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:10:02,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:10:02,637 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:10:02,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:10:02,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:10:02,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:10:02,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:10:02,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:10:02,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:10:02,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:10:02,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:10:02,648 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:10:02,649 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:10:02,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:10:02,651 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:10:02,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:10:02,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:10:02,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:10:02,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:10:02,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:10:02,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:10:02,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:10:02,663 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:10:02,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:10:02,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:10:02,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:10:02,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:10:02,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:10:02,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:10:02,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:10:02,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:10:02,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:10:02,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:10:02,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:10:02,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:10:02,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:10:02,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:10:02,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:10:02,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:10:02,675 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 20:10:02,698 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:10:02,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:10:02,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:10:02,699 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:10:02,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:10:02,699 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:10:02,699 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:10:02,700 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:10:02,700 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:10:02,700 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:10:02,700 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:10:02,700 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:10:02,701 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:10:02,701 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:10:02,701 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:10:02,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:10:02,702 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:10:02,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:10:02,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:10:02,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:10:02,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:10:02,703 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:10:02,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:10:02,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:10:02,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:10:02,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:10:02,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:10:02,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:10:02,706 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-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42e771c9087339edfe48c6fa50d83cff938a7802 [2020-12-09 20:10:02,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:10:02,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:10:02,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:10:02,906 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:10:02,906 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:10:02,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-09 20:10:02,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/a56acfe71/1b180936448a4b3c916bba1c852329bd/FLAG3ba52438c [2020-12-09 20:10:03,366 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:10:03,367 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-09 20:10:03,378 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/a56acfe71/1b180936448a4b3c916bba1c852329bd/FLAG3ba52438c [2020-12-09 20:10:03,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/a56acfe71/1b180936448a4b3c916bba1c852329bd [2020-12-09 20:10:03,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:10:03,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:10:03,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:10:03,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:10:03,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:10:03,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc009cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03, skipping insertion in model container [2020-12-09 20:10:03,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:10:03,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:10:03,590 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-09 20:10:03,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:10:03,702 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:10:03,718 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-09 20:10:03,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:10:03,789 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:10:03,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03 WrapperNode [2020-12-09 20:10:03,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:10:03,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:10:03,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:10:03,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:10:03,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,812 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:10:03,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:10:03,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:10:03,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:10:03,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... [2020-12-09 20:10:03,925 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:10:03,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:10:03,926 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:10:03,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:10:03,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:10:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:10:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:10:03,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:10:03,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:10:14,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:10:14,754 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 20:10:14,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:10:14 BoogieIcfgContainer [2020-12-09 20:10:14,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:10:14,758 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:10:14,758 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:10:14,760 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:10:14,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:10:03" (1/3) ... [2020-12-09 20:10:14,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ce6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:10:14, skipping insertion in model container [2020-12-09 20:10:14,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:03" (2/3) ... [2020-12-09 20:10:14,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ce6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:10:14, skipping insertion in model container [2020-12-09 20:10:14,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:10:14" (3/3) ... [2020-12-09 20:10:14,762 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label07.c [2020-12-09 20:10:14,772 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:10:14,774 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:10:14,781 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:10:14,800 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:10:14,800 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:10:14,800 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:10:14,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:10:14,800 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:10:14,800 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:10:14,800 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:10:14,801 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:10:14,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 20:10:14,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 20:10:14,812 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:14,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 20:10:14,812 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:14,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:14,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1037749839, now seen corresponding path program 1 times [2020-12-09 20:10:14,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:10:14,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077958395] [2020-12-09 20:10:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:10:14,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:14,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077958395] [2020-12-09 20:10:14,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:10:14,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:10:14,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594070295] [2020-12-09 20:10:14,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:10:14,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:10:14,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:10:14,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:14,985 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 20:10:15,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:10:15,045 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 20:10:15,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:10:15,047 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 20:10:15,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:10:15,054 INFO L225 Difference]: With dead ends: 23 [2020-12-09 20:10:15,054 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 20:10:15,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:15,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 20:10:15,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 20:10:15,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 20:10:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 20:10:15,085 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 20:10:15,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:10:15,085 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 20:10:15,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:10:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 20:10:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:10:15,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:15,086 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 20:10:15,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:10:15,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:15,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:15,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1672879439, now seen corresponding path program 1 times [2020-12-09 20:10:15,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:10:15,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655690037] [2020-12-09 20:10:15,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:10:15,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:15,384 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:15,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655690037] [2020-12-09 20:10:15,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694950080] [2020-12-09 20:10:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:10:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:15,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 20:10:15,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:15,705 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1339 DAG size of output: 83 [2020-12-09 20:10:15,766 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,768 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,770 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,771 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,772 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,774 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,775 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,778 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,780 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,785 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,786 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,789 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,792 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,794 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,800 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,803 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,805 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,808 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,812 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,815 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,819 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,820 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,821 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,825 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,827 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,833 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,837 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,838 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,839 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,840 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,842 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,845 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,847 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,850 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,852 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,854 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,857 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,861 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,862 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:10:15,864 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,865 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,869 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,874 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,876 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,876 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,879 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,884 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,884 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,885 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,887 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,888 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,888 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,889 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,890 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:15,894 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,895 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,898 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,899 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,900 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,905 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,910 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,912 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,913 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,914 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,916 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:10:15,921 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,924 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,924 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,925 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,929 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:10:15,935 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 20:10:15,936 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,937 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,938 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,939 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:15,942 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:10:15,944 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,947 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:10:15,948 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,949 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,952 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,956 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 20:10:15,957 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:10:15,958 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,959 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,961 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 20:10:15,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 20:10:15,966 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 20:10:15,967 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 20:10:15,970 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 20:10:15,979 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 14, 4, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,979 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 20:10:15,980 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,980 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:15,981 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,981 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:15,982 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,982 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:15,983 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-09 20:10:15,983 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,984 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,984 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:15,985 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,985 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:15,986 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,986 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:15,987 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 20:10:15,987 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:15,989 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 20:10:15,989 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:15,993 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:15,994 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:15,994 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:15,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:15,997 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,000 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,002 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,003 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:16,004 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,006 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,008 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,008 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,011 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,013 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,016 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,018 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,019 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,020 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,023 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,023 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,025 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,026 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,030 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,031 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 20:10:16,032 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,032 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,035 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,037 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 20:10:16,037 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,038 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,040 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,041 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,041 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,045 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,049 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 20:10:16,050 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,053 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,054 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,059 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,061 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,062 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,066 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:16,067 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,067 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,068 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,070 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,071 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,072 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,075 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 20:10:16,076 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,078 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,079 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,079 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,085 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:16,085 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,088 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,089 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,090 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,093 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,094 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,096 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,100 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,103 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,106 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,109 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,113 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 20:10:16,113 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,117 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,117 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,118 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,120 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,126 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,126 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,131 INFO L639 QuantifierPusher]: Distributing 18 conjuncts over 2 disjuncts [2020-12-09 20:10:16,132 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 20:10:16,133 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,136 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,138 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 20:10:16,139 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,142 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,145 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,145 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,148 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,152 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 20:10:16,153 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 20:10:16,155 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,157 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,159 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 20:10:16,160 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,161 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,163 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,165 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,169 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,169 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,173 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,175 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,177 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 20:10:16,177 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,178 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,180 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,182 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,185 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,189 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,189 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,192 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,194 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:16,194 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,197 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,204 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,209 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,212 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,212 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,213 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,216 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,216 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,218 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 20:10:16,219 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,223 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,223 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,225 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 3 disjuncts [2020-12-09 20:10:16,226 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 20:10:16,227 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,229 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,230 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 20:10:16,230 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,231 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,232 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,233 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,234 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,234 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,237 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,238 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,239 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,240 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,242 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 20:10:16,243 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,244 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,244 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,248 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,249 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 20:10:16,249 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,250 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,253 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,253 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,255 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,257 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,257 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,261 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 20:10:16,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,263 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,265 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,269 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,269 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,271 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,272 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,275 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 20:10:16,275 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,276 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,278 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,278 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,279 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,282 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,282 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,284 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:10:16,285 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,285 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:10:16,288 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,288 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,290 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 20:10:16,291 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:10:16,291 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,293 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:10:16,295 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,297 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 20:10:16,298 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,299 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 20:10:16,300 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,301 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,302 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,304 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,305 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,305 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,306 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 20:10:16,307 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,308 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,308 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,309 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,310 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,312 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,313 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,313 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,315 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,316 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,317 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,318 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,319 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,320 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,321 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,322 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:10:16,323 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,323 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,325 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 20:10:16,325 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,326 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:10:16,326 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,327 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,330 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:10:16,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:10:16,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:16,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:10:16,769 WARN L197 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 2659 DAG size of output: 2498 [2020-12-09 20:10:16,794 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 20:10:16,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1939240737] [2020-12-09 20:10:16,809 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 20:10:16,809 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 20:10:16,813 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 20:10:16,817 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 20:10:16,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 20:10:16,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 42 [2020-12-09 20:10:18,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 42 [2020-12-09 20:10:19,896 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 2480 DAG size of output: 2339 [2020-12-09 20:10:34,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 20:10:34,732 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) 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.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) 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:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) [2020-12-09 20:10:34,741 INFO L168 Benchmark]: Toolchain (without parser) took 31348.49 ms. Allocated memory was 127.9 MB in the beginning and 975.2 MB in the end (delta: 847.2 MB). Free memory was 89.8 MB in the beginning and 644.9 MB in the end (delta: -555.1 MB). Peak memory consumption was 754.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,741 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 99.8 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:10:34,742 INFO L168 Benchmark]: CACSL2BoogieTranslator took 397.82 ms. Allocated memory is still 127.9 MB. Free memory was 89.7 MB in the beginning and 82.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,742 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.42 ms. Allocated memory is still 127.9 MB. Free memory was 82.0 MB in the beginning and 72.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,743 INFO L168 Benchmark]: Boogie Preprocessor took 64.86 ms. Allocated memory is still 127.9 MB. Free memory was 72.5 MB in the beginning and 66.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,743 INFO L168 Benchmark]: RCFGBuilder took 10830.99 ms. Allocated memory was 127.9 MB in the beginning and 367.0 MB in the end (delta: 239.1 MB). Free memory was 65.8 MB in the beginning and 202.2 MB in the end (delta: -136.4 MB). Peak memory consumption was 229.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,744 INFO L168 Benchmark]: TraceAbstraction took 19980.82 ms. Allocated memory was 367.0 MB in the beginning and 975.2 MB in the end (delta: 608.2 MB). Free memory was 201.2 MB in the beginning and 644.9 MB in the end (delta: -443.7 MB). Peak memory consumption was 626.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:10:34,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 127.9 MB. Free memory was 99.8 MB in the beginning and 99.8 MB in the end (delta: 24.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 397.82 ms. Allocated memory is still 127.9 MB. Free memory was 89.7 MB in the beginning and 82.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.42 ms. Allocated memory is still 127.9 MB. Free memory was 82.0 MB in the beginning and 72.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.86 ms. Allocated memory is still 127.9 MB. Free memory was 72.5 MB in the beginning and 66.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10830.99 ms. Allocated memory was 127.9 MB in the beginning and 367.0 MB in the end (delta: 239.1 MB). Free memory was 65.8 MB in the beginning and 202.2 MB in the end (delta: -136.4 MB). Peak memory consumption was 229.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19980.82 ms. Allocated memory was 367.0 MB in the beginning and 975.2 MB in the end (delta: 608.2 MB). Free memory was 201.2 MB in the beginning and 644.9 MB in the end (delta: -443.7 MB). Peak memory consumption was 626.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:10:36,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:10:36,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:10:36,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:10:36,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:10:36,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:10:36,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:10:36,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:10:36,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:10:36,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:10:36,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:10:36,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:10:36,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:10:36,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:10:36,336 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:10:36,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:10:36,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:10:36,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:10:36,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:10:36,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:10:36,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:10:36,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:10:36,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:10:36,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:10:36,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:10:36,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:10:36,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:10:36,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:10:36,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:10:36,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:10:36,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:10:36,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:10:36,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:10:36,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:10:36,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:10:36,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:10:36,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:10:36,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:10:36,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:10:36,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:10:36,357 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:10:36,358 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 20:10:36,379 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:10:36,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:10:36,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:10:36,380 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:10:36,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:10:36,380 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:10:36,380 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:10:36,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:10:36,380 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:10:36,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:10:36,381 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:10:36,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:10:36,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:10:36,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:10:36,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:10:36,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:10:36,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:10:36,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 20:10:36,383 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:10:36,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:10:36,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:10:36,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:10:36,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:10:36,384 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 20:10:36,384 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 20:10:36,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:10:36,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:10:36,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:10:36,384 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-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42e771c9087339edfe48c6fa50d83cff938a7802 [2020-12-09 20:10:36,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:10:36,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:10:36,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:10:36,644 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:10:36,645 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:10:36,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-09 20:10:36,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/43e498611/3a401c4e7dfe489fae717a7b2ad9ec3c/FLAG847f1b33d [2020-12-09 20:10:37,181 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:10:37,181 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c [2020-12-09 20:10:37,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/43e498611/3a401c4e7dfe489fae717a7b2ad9ec3c/FLAG847f1b33d [2020-12-09 20:10:37,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/data/43e498611/3a401c4e7dfe489fae717a7b2ad9ec3c [2020-12-09 20:10:37,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:10:37,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:10:37,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:10:37,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:10:37,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:10:37,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:10:37" (1/1) ... [2020-12-09 20:10:37,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7464a42d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:37, skipping insertion in model container [2020-12-09 20:10:37,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:10:37" (1/1) ... [2020-12-09 20:10:37,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:10:37,715 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:10:37,854 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-09 20:10:38,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:10:38,032 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:10:38,057 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/sv-benchmarks/c/eca-rers2012/Problem14_label07.c[4912,4925] [2020-12-09 20:10:38,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:10:38,143 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:10:38,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38 WrapperNode [2020-12-09 20:10:38,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:10:38,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:10:38,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:10:38,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:10:38,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:10:38,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:10:38,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:10:38,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:10:38,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... [2020-12-09 20:10:38,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:10:38,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:10:38,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:10:38,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:10:38,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:10:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 20:10:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:10:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:10:38,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:10:40,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:10:40,687 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 20:10:40,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:10:40 BoogieIcfgContainer [2020-12-09 20:10:40,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:10:40,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:10:40,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:10:40,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:10:40,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:10:37" (1/3) ... [2020-12-09 20:10:40,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e2d663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:10:40, skipping insertion in model container [2020-12-09 20:10:40,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:10:38" (2/3) ... [2020-12-09 20:10:40,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30e2d663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:10:40, skipping insertion in model container [2020-12-09 20:10:40,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:10:40" (3/3) ... [2020-12-09 20:10:40,694 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label07.c [2020-12-09 20:10:40,703 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:10:40,706 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:10:40,712 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:10:40,729 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:10:40,729 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:10:40,729 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:10:40,729 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:10:40,729 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:10:40,730 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:10:40,730 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:10:40,730 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:10:40,742 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 20:10:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-09 20:10:40,747 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:40,748 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:10:40,748 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:40,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:40,752 INFO L82 PathProgramCache]: Analyzing trace with hash 433832817, now seen corresponding path program 1 times [2020-12-09 20:10:40,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:10:40,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528875853] [2020-12-09 20:10:40,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 20:10:40,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:40,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:10:40,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:40,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:10:40,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1528875853] [2020-12-09 20:10:40,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:10:40,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:10:40,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058286935] [2020-12-09 20:10:40,959 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:10:40,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:10:40,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:10:40,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:40,973 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 20:10:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:10:43,945 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2020-12-09 20:10:43,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:10:43,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-09 20:10:43,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:10:43,960 INFO L225 Difference]: With dead ends: 685 [2020-12-09 20:10:43,960 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 20:10:43,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:43,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 20:10:44,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 20:10:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 20:10:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2020-12-09 20:10:44,009 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 47 [2020-12-09 20:10:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:10:44,009 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2020-12-09 20:10:44,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:10:44,009 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2020-12-09 20:10:44,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-09 20:10:44,013 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:44,013 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:10:44,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 20:10:44,214 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:44,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:44,214 INFO L82 PathProgramCache]: Analyzing trace with hash 914813062, now seen corresponding path program 1 times [2020-12-09 20:10:44,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:10:44,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17720378] [2020-12-09 20:10:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 20:10:44,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:44,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:10:44,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:44,443 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:44,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:10:44,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17720378] [2020-12-09 20:10:44,443 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:10:44,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:10:44,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465163915] [2020-12-09 20:10:44,444 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:10:44,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:10:44,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:10:44,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:44,446 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand 3 states. [2020-12-09 20:10:46,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:10:46,722 INFO L93 Difference]: Finished difference Result 896 states and 1232 transitions. [2020-12-09 20:10:46,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:10:46,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-09 20:10:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:10:46,725 INFO L225 Difference]: With dead ends: 896 [2020-12-09 20:10:46,725 INFO L226 Difference]: Without dead ends: 538 [2020-12-09 20:10:46,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:46,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2020-12-09 20:10:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2020-12-09 20:10:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-12-09 20:10:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 700 transitions. [2020-12-09 20:10:46,747 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 700 transitions. Word has length 116 [2020-12-09 20:10:46,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:10:46,748 INFO L481 AbstractCegarLoop]: Abstraction has 538 states and 700 transitions. [2020-12-09 20:10:46,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:10:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 700 transitions. [2020-12-09 20:10:46,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-12-09 20:10:46,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:46,751 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:10:46,951 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 20:10:46,952 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:46,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:46,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1928204960, now seen corresponding path program 1 times [2020-12-09 20:10:46,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:10:46,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1077832393] [2020-12-09 20:10:46,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 20:10:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:47,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:10:47,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:47,178 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:10:47,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:10:47,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1077832393] [2020-12-09 20:10:47,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:10:47,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:10:47,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403328977] [2020-12-09 20:10:47,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:10:47,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:10:47,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:10:47,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:47,180 INFO L87 Difference]: Start difference. First operand 538 states and 700 transitions. Second operand 3 states. [2020-12-09 20:10:50,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:10:50,426 INFO L93 Difference]: Finished difference Result 1252 states and 1691 transitions. [2020-12-09 20:10:50,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:10:50,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2020-12-09 20:10:50,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:10:50,430 INFO L225 Difference]: With dead ends: 1252 [2020-12-09 20:10:50,430 INFO L226 Difference]: Without dead ends: 894 [2020-12-09 20:10:50,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:10:50,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-12-09 20:10:50,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 894. [2020-12-09 20:10:50,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-12-09 20:10:50,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1110 transitions. [2020-12-09 20:10:50,446 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1110 transitions. Word has length 152 [2020-12-09 20:10:50,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:10:50,446 INFO L481 AbstractCegarLoop]: Abstraction has 894 states and 1110 transitions. [2020-12-09 20:10:50,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:10:50,447 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1110 transitions. [2020-12-09 20:10:50,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-12-09 20:10:50,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:50,450 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2020-12-09 20:10:50,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 20:10:50,651 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:50,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:50,653 INFO L82 PathProgramCache]: Analyzing trace with hash 48454035, now seen corresponding path program 1 times [2020-12-09 20:10:50,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:10:50,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [742279008] [2020-12-09 20:10:50,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 20:10:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:50,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 20:10:50,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-12-09 20:10:50,960 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:10:50,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [742279008] [2020-12-09 20:10:50,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:10:50,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:10:50,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592986850] [2020-12-09 20:10:50,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:10:50,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:10:50,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:10:50,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:10:50,961 INFO L87 Difference]: Start difference. First operand 894 states and 1110 transitions. Second operand 4 states. [2020-12-09 20:10:53,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:10:53,163 INFO L93 Difference]: Finished difference Result 1281 states and 1659 transitions. [2020-12-09 20:10:53,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:10:53,163 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 196 [2020-12-09 20:10:53,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:10:53,167 INFO L225 Difference]: With dead ends: 1281 [2020-12-09 20:10:53,167 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 20:10:53,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:10:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 20:10:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 20:10:53,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 20:10:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 881 transitions. [2020-12-09 20:10:53,179 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 881 transitions. Word has length 196 [2020-12-09 20:10:53,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:10:53,179 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 881 transitions. [2020-12-09 20:10:53,179 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:10:53,179 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 881 transitions. [2020-12-09 20:10:53,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2020-12-09 20:10:53,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:10:53,183 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-12-09 20:10:53,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 20:10:53,384 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:10:53,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:10:53,386 INFO L82 PathProgramCache]: Analyzing trace with hash 358798588, now seen corresponding path program 1 times [2020-12-09 20:10:53,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:10:53,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733544299] [2020-12-09 20:10:53,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 20:10:53,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:10:53,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:10:53,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:10:53,863 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 134 proven. 131 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:10:53,863 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:10:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 265 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:10:54,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733544299] [2020-12-09 20:10:54,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 20:10:54,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 20:10:54,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033757380] [2020-12-09 20:10:54,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:10:54,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:10:54,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:10:54,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:10:54,645 INFO L87 Difference]: Start difference. First operand 716 states and 881 transitions. Second operand 3 states. [2020-12-09 20:11:00,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:00,796 INFO L93 Difference]: Finished difference Result 1430 states and 1920 transitions. [2020-12-09 20:11:00,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:00,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2020-12-09 20:11:00,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:00,801 INFO L225 Difference]: With dead ends: 1430 [2020-12-09 20:11:00,802 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 20:11:00,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 646 GetRequests, 642 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:11:00,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 20:11:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 20:11:00,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 20:11:00,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1370 transitions. [2020-12-09 20:11:00,819 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1370 transitions. Word has length 324 [2020-12-09 20:11:00,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:00,819 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1370 transitions. [2020-12-09 20:11:00,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:00,820 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1370 transitions. [2020-12-09 20:11:00,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-12-09 20:11:00,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:00,824 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:01,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 20:11:01,024 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:01,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:01,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1910652543, now seen corresponding path program 1 times [2020-12-09 20:11:01,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:01,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788711986] [2020-12-09 20:11:01,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:01,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 20:11:01,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:01,424 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 134 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:11:01,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 269 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:11:02,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788711986] [2020-12-09 20:11:02,229 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 20:11:02,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 20:11:02,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938033022] [2020-12-09 20:11:02,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:11:02,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:02,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:11:02,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:11:02,231 INFO L87 Difference]: Start difference. First operand 1072 states and 1370 transitions. Second operand 3 states. [2020-12-09 20:11:09,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:09,058 INFO L93 Difference]: Finished difference Result 2320 states and 3161 transitions. [2020-12-09 20:11:09,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:09,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 326 [2020-12-09 20:11:09,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:09,064 INFO L225 Difference]: With dead ends: 2320 [2020-12-09 20:11:09,064 INFO L226 Difference]: Without dead ends: 1606 [2020-12-09 20:11:09,065 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 646 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:11:09,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-09 20:11:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-09 20:11:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-09 20:11:09,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2032 transitions. [2020-12-09 20:11:09,096 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2032 transitions. Word has length 326 [2020-12-09 20:11:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:09,096 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 2032 transitions. [2020-12-09 20:11:09,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:09,096 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2032 transitions. [2020-12-09 20:11:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-12-09 20:11:09,098 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:09,098 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:09,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 20:11:09,299 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:09,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:09,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1676877584, now seen corresponding path program 1 times [2020-12-09 20:11:09,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:09,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349913753] [2020-12-09 20:11:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:09,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:11:09,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:09,651 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-12-09 20:11:09,651 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:11:09,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349913753] [2020-12-09 20:11:09,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:11:09,652 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:11:09,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563211739] [2020-12-09 20:11:09,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:11:09,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:09,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:11:09,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:11:09,653 INFO L87 Difference]: Start difference. First operand 1606 states and 2032 transitions. Second operand 3 states. [2020-12-09 20:11:12,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:12,831 INFO L93 Difference]: Finished difference Result 3388 states and 4450 transitions. [2020-12-09 20:11:12,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:12,832 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 332 [2020-12-09 20:11:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:12,842 INFO L225 Difference]: With dead ends: 3388 [2020-12-09 20:11:12,842 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 20:11:12,844 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:11:12,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 20:11:12,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 20:11:12,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 20:11:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2668 transitions. [2020-12-09 20:11:12,880 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2668 transitions. Word has length 332 [2020-12-09 20:11:12,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:12,880 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2668 transitions. [2020-12-09 20:11:12,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2668 transitions. [2020-12-09 20:11:12,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-12-09 20:11:12,882 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:12,883 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:13,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 20:11:13,084 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:13,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:13,086 INFO L82 PathProgramCache]: Analyzing trace with hash -489286457, now seen corresponding path program 1 times [2020-12-09 20:11:13,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:13,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [581358395] [2020-12-09 20:11:13,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:13,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:11:13,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:11:13,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:18,499 WARN L197 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 18 DAG size of output: 3 [2020-12-09 20:11:18,805 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 248 proven. 77 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 20:11:18,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [581358395] [2020-12-09 20:11:18,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [316132981] [2020-12-09 20:11:18,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:11:18,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:18,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:11:18,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 20:11:19,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:11:19,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 20:11:19,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 10 [2020-12-09 20:11:19,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505878018] [2020-12-09 20:11:19,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:11:19,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:19,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:11:19,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 20:11:19,201 INFO L87 Difference]: Start difference. First operand 2140 states and 2668 transitions. Second operand 3 states. [2020-12-09 20:11:22,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:22,466 INFO L93 Difference]: Finished difference Result 4812 states and 6241 transitions. [2020-12-09 20:11:22,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:22,466 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 354 [2020-12-09 20:11:22,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:22,477 INFO L225 Difference]: With dead ends: 4812 [2020-12-09 20:11:22,477 INFO L226 Difference]: Without dead ends: 3030 [2020-12-09 20:11:22,479 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1059 GetRequests, 1051 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-12-09 20:11:22,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2020-12-09 20:11:22,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2674. [2020-12-09 20:11:22,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-12-09 20:11:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 3304 transitions. [2020-12-09 20:11:22,523 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 3304 transitions. Word has length 354 [2020-12-09 20:11:22,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:22,523 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 3304 transitions. [2020-12-09 20:11:22,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:22,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 3304 transitions. [2020-12-09 20:11:22,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2020-12-09 20:11:22,526 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:22,526 INFO L422 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:22,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt [2020-12-09 20:11:22,928 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:22,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:22,929 INFO L82 PathProgramCache]: Analyzing trace with hash -509834263, now seen corresponding path program 1 times [2020-12-09 20:11:22,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:22,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1148307955] [2020-12-09 20:11:22,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:23,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:23,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:11:23,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:23,661 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 313 proven. 277 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-09 20:11:23,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 561 proven. 29 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-12-09 20:11:25,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1148307955] [2020-12-09 20:11:25,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [246924604] [2020-12-09 20:11:25,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:11:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:25,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:11:25,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:25,918 INFO L134 CoverageAnalysis]: Checked inductivity of 710 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 20:11:25,919 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:11:25,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 20:11:25,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 11 [2020-12-09 20:11:25,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271473601] [2020-12-09 20:11:25,920 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:11:25,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:25,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:11:25,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:11:25,920 INFO L87 Difference]: Start difference. First operand 2674 states and 3304 transitions. Second operand 6 states. [2020-12-09 20:11:28,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:28,976 INFO L93 Difference]: Finished difference Result 5114 states and 6371 transitions. [2020-12-09 20:11:28,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:11:28,977 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 433 [2020-12-09 20:11:28,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:28,985 INFO L225 Difference]: With dead ends: 5114 [2020-12-09 20:11:28,985 INFO L226 Difference]: Without dead ends: 2674 [2020-12-09 20:11:28,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1286 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:11:28,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2020-12-09 20:11:29,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2674. [2020-12-09 20:11:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2674 states. [2020-12-09 20:11:29,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2674 states to 2674 states and 2907 transitions. [2020-12-09 20:11:29,021 INFO L78 Accepts]: Start accepts. Automaton has 2674 states and 2907 transitions. Word has length 433 [2020-12-09 20:11:29,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:29,021 INFO L481 AbstractCegarLoop]: Abstraction has 2674 states and 2907 transitions. [2020-12-09 20:11:29,021 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:11:29,021 INFO L276 IsEmpty]: Start isEmpty. Operand 2674 states and 2907 transitions. [2020-12-09 20:11:29,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2020-12-09 20:11:29,026 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:29,026 INFO L422 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:29,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3,12 cvc4 --incremental --print-success --lang smt [2020-12-09 20:11:29,428 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:29,430 INFO L82 PathProgramCache]: Analyzing trace with hash 400391532, now seen corresponding path program 1 times [2020-12-09 20:11:29,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:29,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268670405] [2020-12-09 20:11:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:29,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 20:11:29,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 631 proven. 420 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-12-09 20:11:30,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:32,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 1051 proven. 0 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2020-12-09 20:11:32,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268670405] [2020-12-09 20:11:32,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 20:11:32,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 20:11:32,286 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027980053] [2020-12-09 20:11:32,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:11:32,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:32,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:11:32,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:11:32,287 INFO L87 Difference]: Start difference. First operand 2674 states and 2907 transitions. Second operand 3 states. [2020-12-09 20:11:34,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:34,758 INFO L93 Difference]: Finished difference Result 5524 states and 6068 transitions. [2020-12-09 20:11:34,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:34,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 675 [2020-12-09 20:11:34,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:34,769 INFO L225 Difference]: With dead ends: 5524 [2020-12-09 20:11:34,769 INFO L226 Difference]: Without dead ends: 3208 [2020-12-09 20:11:34,770 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1348 GetRequests, 1344 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:11:34,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-09 20:11:34,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-12-09 20:11:34,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-09 20:11:34,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3507 transitions. [2020-12-09 20:11:34,807 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3507 transitions. Word has length 675 [2020-12-09 20:11:34,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:34,808 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3507 transitions. [2020-12-09 20:11:34,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:34,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3507 transitions. [2020-12-09 20:11:34,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 774 [2020-12-09 20:11:34,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:34,815 INFO L422 BasicCegarLoop]: trace histogram [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, 7, 7, 7, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:11:35,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-12-09 20:11:35,017 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:35,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:35,019 INFO L82 PathProgramCache]: Analyzing trace with hash -290829556, now seen corresponding path program 1 times [2020-12-09 20:11:35,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:35,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [4458273] [2020-12-09 20:11:35,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:35,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:11:35,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:35,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1743 backedges. 1061 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2020-12-09 20:11:35,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:11:35,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [4458273] [2020-12-09 20:11:35,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:11:35,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:11:35,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590862203] [2020-12-09 20:11:35,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:11:35,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:35,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:11:35,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:11:35,831 INFO L87 Difference]: Start difference. First operand 3208 states and 3507 transitions. Second operand 3 states. [2020-12-09 20:11:37,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:37,776 INFO L93 Difference]: Finished difference Result 6948 states and 7669 transitions. [2020-12-09 20:11:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:11:37,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 773 [2020-12-09 20:11:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:37,795 INFO L225 Difference]: With dead ends: 6948 [2020-12-09 20:11:37,795 INFO L226 Difference]: Without dead ends: 4098 [2020-12-09 20:11:37,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:11:37,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-09 20:11:37,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2020-12-09 20:11:37,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-09 20:11:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4403 transitions. [2020-12-09 20:11:37,849 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4403 transitions. Word has length 773 [2020-12-09 20:11:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:37,850 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4403 transitions. [2020-12-09 20:11:37,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:11:37,850 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4403 transitions. [2020-12-09 20:11:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 867 [2020-12-09 20:11:37,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:37,857 INFO L422 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, 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, 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, 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] [2020-12-09 20:11:38,058 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-12-09 20:11:38,059 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:38,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:38,061 INFO L82 PathProgramCache]: Analyzing trace with hash -875670649, now seen corresponding path program 1 times [2020-12-09 20:11:38,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:38,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019406027] [2020-12-09 20:11:38,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:38,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 20:11:38,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2252 backedges. 1365 proven. 420 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2020-12-09 20:11:41,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:42,560 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 20:11:42,560 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:11:45,730 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 19 DAG size of output: 7 [2020-12-09 20:11:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2252 backedges. 1785 proven. 0 refuted. 0 times theorem prover too weak. 467 trivial. 0 not checked. [2020-12-09 20:11:48,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019406027] [2020-12-09 20:11:48,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 20:11:48,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2020-12-09 20:11:48,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611125648] [2020-12-09 20:11:48,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 20:11:48,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:11:48,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 20:11:48,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 20:11:48,173 INFO L87 Difference]: Start difference. First operand 4098 states and 4403 transitions. Second operand 11 states. [2020-12-09 20:11:52,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:11:52,113 INFO L93 Difference]: Finished difference Result 8002 states and 8612 transitions. [2020-12-09 20:11:52,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 20:11:52,118 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 866 [2020-12-09 20:11:52,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:11:52,132 INFO L225 Difference]: With dead ends: 8002 [2020-12-09 20:11:52,132 INFO L226 Difference]: Without dead ends: 4253 [2020-12-09 20:11:52,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1730 GetRequests, 1676 SyntacticMatches, 36 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 20:11:52,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-12-09 20:11:52,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-12-09 20:11:52,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-12-09 20:11:52,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 4559 transitions. [2020-12-09 20:11:52,176 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 4559 transitions. Word has length 866 [2020-12-09 20:11:52,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:11:52,176 INFO L481 AbstractCegarLoop]: Abstraction has 4253 states and 4559 transitions. [2020-12-09 20:11:52,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 20:11:52,176 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 4559 transitions. [2020-12-09 20:11:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2020-12-09 20:11:52,184 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:11:52,184 INFO L422 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, 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, 7, 7, 7, 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] [2020-12-09 20:11:52,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-12-09 20:11:52,386 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:11:52,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:11:52,388 INFO L82 PathProgramCache]: Analyzing trace with hash 2048542798, now seen corresponding path program 1 times [2020-12-09 20:11:52,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:11:52,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163368189] [2020-12-09 20:11:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-12-09 20:11:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:52,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 20:11:52,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 359 proven. 2098 refuted. 0 times theorem prover too weak. 371 trivial. 0 not checked. [2020-12-09 20:11:53,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:55,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 1809 proven. 75 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2020-12-09 20:11:55,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163368189] [2020-12-09 20:11:55,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1960339858] [2020-12-09 20:11:55,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 17 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:11:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:55,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 20:11:55,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 836 proven. 44 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 20:11:56,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:11:57,658 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 836 proven. 44 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 20:11:57,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286072332] [2020-12-09 20:11:57,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:11:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:11:57,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 20:11:57,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:11:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 308 proven. 572 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 20:11:59,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:12:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2828 backedges. 308 proven. 572 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 20:12:00,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 20:12:00,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5, 5] total 17 [2020-12-09 20:12:00,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857744916] [2020-12-09 20:12:00,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 20:12:00,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:12:00,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 20:12:00,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-12-09 20:12:00,399 INFO L87 Difference]: Start difference. First operand 4253 states and 4559 transitions. Second operand 17 states. [2020-12-09 20:12:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:12:24,760 INFO L93 Difference]: Finished difference Result 11329 states and 12246 transitions. [2020-12-09 20:12:24,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 20:12:24,760 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 943 [2020-12-09 20:12:24,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:12:24,782 INFO L225 Difference]: With dead ends: 11329 [2020-12-09 20:12:24,782 INFO L226 Difference]: Without dead ends: 7434 [2020-12-09 20:12:24,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5680 GetRequests, 5650 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2020-12-09 20:12:24,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2020-12-09 20:12:24,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 7000. [2020-12-09 20:12:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7000 states. [2020-12-09 20:12:24,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7000 states to 7000 states and 7429 transitions. [2020-12-09 20:12:24,843 INFO L78 Accepts]: Start accepts. Automaton has 7000 states and 7429 transitions. Word has length 943 [2020-12-09 20:12:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:12:24,843 INFO L481 AbstractCegarLoop]: Abstraction has 7000 states and 7429 transitions. [2020-12-09 20:12:24,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 20:12:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 7000 states and 7429 transitions. [2020-12-09 20:12:24,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1055 [2020-12-09 20:12:24,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:12:24,853 INFO L422 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, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:12:25,455 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,17 cvc4 --incremental --print-success --lang smt [2020-12-09 20:12:25,457 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:12:25,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:12:25,458 INFO L82 PathProgramCache]: Analyzing trace with hash 21003526, now seen corresponding path program 1 times [2020-12-09 20:12:25,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:12:25,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449393655] [2020-12-09 20:12:25,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-12-09 20:12:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:12:25,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 20:12:25,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:12:29,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 1766 proven. 1115 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2020-12-09 20:12:29,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:12:30,148 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 20:12:30,148 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:12:30,858 WARN L197 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 20:12:31,394 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 20:12:41,374 WARN L197 SmtUtils]: Spent 2.51 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 20:12:45,555 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 2308 proven. 0 refuted. 573 times theorem prover too weak. 387 trivial. 0 not checked. [2020-12-09 20:12:45,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449393655] [2020-12-09 20:12:45,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [936833446] [2020-12-09 20:12:45,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 20 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:12:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:12:45,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 20:12:45,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:12:47,389 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:12:47,390 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:12:47,391 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:12:47,394 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:12:47,395 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:12:47,397 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:12:49,023 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 1832 proven. 302 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2020-12-09 20:12:49,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:12:50,169 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:12:50,169 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:12:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 1933 proven. 201 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2020-12-09 20:12:51,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411400481] [2020-12-09 20:12:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:12:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:12:51,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 1161 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:12:51,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:12:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3268 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2020-12-09 20:12:52,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:12:52,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 20:12:52,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11, 11, 9, 9] total 34 [2020-12-09 20:12:52,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954088093] [2020-12-09 20:12:52,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:12:52,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:12:52,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:12:52,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=828, Unknown=2, NotChecked=0, Total=1122 [2020-12-09 20:12:52,908 INFO L87 Difference]: Start difference. First operand 7000 states and 7429 transitions. Second operand 3 states. [2020-12-09 20:12:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:12:56,813 INFO L93 Difference]: Finished difference Result 12497 states and 13334 transitions. [2020-12-09 20:12:56,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:12:56,820 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1054 [2020-12-09 20:12:56,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:12:56,828 INFO L225 Difference]: With dead ends: 12497 [2020-12-09 20:12:56,829 INFO L226 Difference]: Without dead ends: 7000 [2020-12-09 20:12:56,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5265 GetRequests, 5205 SyntacticMatches, 28 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=292, Invalid=828, Unknown=2, NotChecked=0, Total=1122 [2020-12-09 20:12:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7000 states. [2020-12-09 20:12:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7000 to 6644. [2020-12-09 20:12:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6644 states. [2020-12-09 20:12:56,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6644 states to 6644 states and 6960 transitions. [2020-12-09 20:12:56,891 INFO L78 Accepts]: Start accepts. Automaton has 6644 states and 6960 transitions. Word has length 1054 [2020-12-09 20:12:56,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:12:56,892 INFO L481 AbstractCegarLoop]: Abstraction has 6644 states and 6960 transitions. [2020-12-09 20:12:56,892 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:12:56,892 INFO L276 IsEmpty]: Start isEmpty. Operand 6644 states and 6960 transitions. [2020-12-09 20:12:56,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1239 [2020-12-09 20:12:56,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:12:56,907 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 7, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:12:57,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3,21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 cvc4 --incremental --print-success --lang smt [2020-12-09 20:12:57,511 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:12:57,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:12:57,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1696557312, now seen corresponding path program 1 times [2020-12-09 20:12:57,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:12:57,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460237682] [2020-12-09 20:12:57,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-12-09 20:12:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:12:57,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 20:12:57,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:13:01,915 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 2539 proven. 1115 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2020-12-09 20:13:01,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:13:02,804 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 20:13:02,804 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:13:03,428 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2020-12-09 20:13:04,041 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 20:13:14,482 WARN L197 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 20:13:19,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 3081 proven. 0 refuted. 573 times theorem prover too weak. 755 trivial. 0 not checked. [2020-12-09 20:13:19,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460237682] [2020-12-09 20:13:19,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2144226808] [2020-12-09 20:13:19,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 23 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:13:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:13:19,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 20:13:19,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:13:21,454 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:13:21,454 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:13:21,455 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:13:21,457 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:13:21,458 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:13:21,460 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:13:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 3017 proven. 280 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2020-12-09 20:13:23,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:13:24,668 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:13:24,669 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:13:26,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 3141 proven. 156 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2020-12-09 20:13:26,457 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133111133] [2020-12-09 20:13:26,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:13:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:13:26,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 1353 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 20:13:26,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:13:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 2621 proven. 73 refuted. 0 times theorem prover too weak. 1715 trivial. 0 not checked. [2020-12-09 20:13:33,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:13:33,576 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:13:33,576 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 20:13:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4409 backedges. 2621 proven. 73 refuted. 0 times theorem prover too weak. 1715 trivial. 0 not checked. [2020-12-09 20:13:36,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 20:13:36,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 9, 9, 4, 4] total 36 [2020-12-09 20:13:36,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674924813] [2020-12-09 20:13:36,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-12-09 20:13:36,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:13:36,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-12-09 20:13:36,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=940, Unknown=3, NotChecked=0, Total=1260 [2020-12-09 20:13:36,168 INFO L87 Difference]: Start difference. First operand 6644 states and 6960 transitions. Second operand 36 states. [2020-12-09 20:13:49,769 WARN L197 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 44 DAG size of output: 30 [2020-12-09 20:13:57,803 WARN L197 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 20:14:27,998 WARN L197 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2020-12-09 20:14:33,045 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2020-12-09 20:14:35,637 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 20:14:42,154 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 20:14:43,510 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2020-12-09 20:15:43,317 WARN L197 SmtUtils]: Spent 2.55 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 20:16:27,625 WARN L197 SmtUtils]: Spent 6.30 s on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-09 20:16:37,372 WARN L197 SmtUtils]: Spent 2.69 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 20:17:06,129 WARN L197 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2020-12-09 20:17:15,452 WARN L197 SmtUtils]: Spent 5.58 s on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2020-12-09 20:17:37,878 WARN L197 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-09 20:17:53,806 WARN L197 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-09 20:19:15,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:19:15,696 INFO L93 Difference]: Finished difference Result 15065 states and 15790 transitions. [2020-12-09 20:19:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-12-09 20:19:15,697 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 1238 [2020-12-09 20:19:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:19:15,709 INFO L225 Difference]: With dead ends: 15065 [2020-12-09 20:19:15,709 INFO L226 Difference]: Without dead ends: 8391 [2020-12-09 20:19:15,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7471 GetRequests, 7387 SyntacticMatches, 20 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1294 ImplicationChecksByTransitivity, 125.9s TimeCoverageRelationStatistics Valid=894, Invalid=3380, Unknown=16, NotChecked=0, Total=4290 [2020-12-09 20:19:15,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2020-12-09 20:19:15,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 6966. [2020-12-09 20:19:15,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6966 states. [2020-12-09 20:19:15,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 7291 transitions. [2020-12-09 20:19:15,788 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 7291 transitions. Word has length 1238 [2020-12-09 20:19:15,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:19:15,789 INFO L481 AbstractCegarLoop]: Abstraction has 6966 states and 7291 transitions. [2020-12-09 20:19:15,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-12-09 20:19:15,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 7291 transitions. [2020-12-09 20:19:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1400 [2020-12-09 20:19:15,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:19:15,806 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:19:16,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt,22 mathsat -unsat_core_generation=3,24 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:19:16,408 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:19:16,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:19:16,410 INFO L82 PathProgramCache]: Analyzing trace with hash -143975263, now seen corresponding path program 1 times [2020-12-09 20:19:16,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:19:16,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129048512] [2020-12-09 20:19:16,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-12-09 20:19:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:19:16,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 20:19:16,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:19:18,357 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2020-12-09 20:19:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 5577 backedges. 3011 proven. 1545 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2020-12-09 20:19:23,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:19:24,120 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-09 20:19:24,309 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-09 20:19:24,484 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-12-09 20:19:25,168 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 3, 1] term [2020-12-09 20:19:25,168 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:19:25,680 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 20:19:26,812 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 20:19:38,322 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 26 DAG size of output: 7 [2020-12-09 20:19:45,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5577 backedges. 3851 proven. 705 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2020-12-09 20:19:45,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129048512] [2020-12-09 20:19:45,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1969726326] [2020-12-09 20:19:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 26 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:19:46,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:19:46,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1527 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 20:19:46,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:19:49,247 INFO L134 CoverageAnalysis]: Checked inductivity of 5577 backedges. 2473 proven. 19 refuted. 0 times theorem prover too weak. 3085 trivial. 0 not checked. [2020-12-09 20:19:49,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:19:52,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5577 backedges. 1605 proven. 0 refuted. 0 times theorem prover too weak. 3972 trivial. 0 not checked. [2020-12-09 20:19:52,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 20:19:52,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11, 11, 7] total 29 [2020-12-09 20:19:52,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245943722] [2020-12-09 20:19:52,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:19:52,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:19:52,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:19:52,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2020-12-09 20:19:52,504 INFO L87 Difference]: Start difference. First operand 6966 states and 7291 transitions. Second operand 4 states. [2020-12-09 20:19:55,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:19:55,007 INFO L93 Difference]: Finished difference Result 12891 states and 13573 transitions. [2020-12-09 20:19:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:19:55,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1399 [2020-12-09 20:19:55,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:19:55,018 INFO L225 Difference]: With dead ends: 12891 [2020-12-09 20:19:55,018 INFO L226 Difference]: Without dead ends: 7322 [2020-12-09 20:19:55,022 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5592 GetRequests, 5522 SyntacticMatches, 43 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=239, Invalid=573, Unknown=0, NotChecked=0, Total=812 [2020-12-09 20:19:55,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2020-12-09 20:19:55,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 6966. [2020-12-09 20:19:55,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6966 states. [2020-12-09 20:19:55,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 7299 transitions. [2020-12-09 20:19:55,093 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 7299 transitions. Word has length 1399 [2020-12-09 20:19:55,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:19:55,094 INFO L481 AbstractCegarLoop]: Abstraction has 6966 states and 7299 transitions. [2020-12-09 20:19:55,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:19:55,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 7299 transitions. [2020-12-09 20:19:55,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1462 [2020-12-09 20:19:55,112 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:19:55,113 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:19:55,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 cvc4 --incremental --print-success --lang smt,25 mathsat -unsat_core_generation=3 [2020-12-09 20:19:55,515 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:19:55,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:19:55,517 INFO L82 PathProgramCache]: Analyzing trace with hash 285077585, now seen corresponding path program 1 times [2020-12-09 20:19:55,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:19:55,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2020517130] [2020-12-09 20:19:55,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 27 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with mathsat -unsat_core_generation=3 [2020-12-09 20:19:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:19:55,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 20:19:55,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:19:57,870 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-09 20:19:58,053 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-09 20:19:58,270 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-09 20:19:58,484 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-09 20:19:58,664 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 20:19:58,664 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 20:20:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 494 proven. 4778 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2020-12-09 20:20:03,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:20:04,538 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-09 20:20:05,140 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 3, 1] term [2020-12-09 20:20:05,140 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:20:05,711 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 20:20:16,111 WARN L197 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 23 DAG size of output: 3 [2020-12-09 20:20:23,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 1355 proven. 3912 refuted. 5 times theorem prover too weak. 1173 trivial. 0 not checked. [2020-12-09 20:20:23,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2020517130] [2020-12-09 20:20:23,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1491138702] [2020-12-09 20:20:23,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 28 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:20:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:20:23,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 20:20:23,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:20:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 2378 proven. 44 refuted. 0 times theorem prover too weak. 4023 trivial. 0 not checked. [2020-12-09 20:20:25,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:20:26,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 2378 proven. 44 refuted. 0 times theorem prover too weak. 4023 trivial. 0 not checked. [2020-12-09 20:20:26,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389972382] [2020-12-09 20:20:26,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/z3 Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:20:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:20:27,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 20:20:27,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:20:29,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6445 backedges. 2422 proven. 0 refuted. 0 times theorem prover too weak. 4023 trivial. 0 not checked. [2020-12-09 20:20:29,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:20:29,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 20:20:29,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12, 12, 4, 4] total 26 [2020-12-09 20:20:29,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854250181] [2020-12-09 20:20:29,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:20:29,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:20:29,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:20:29,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=500, Unknown=1, NotChecked=0, Total=650 [2020-12-09 20:20:29,606 INFO L87 Difference]: Start difference. First operand 6966 states and 7299 transitions. Second operand 4 states. [2020-12-09 20:20:31,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:20:31,655 INFO L93 Difference]: Finished difference Result 12379 states and 13016 transitions. [2020-12-09 20:20:31,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:20:31,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1461 [2020-12-09 20:20:31,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:20:31,665 INFO L225 Difference]: With dead ends: 12379 [2020-12-09 20:20:31,666 INFO L226 Difference]: Without dead ends: 6788 [2020-12-09 20:20:31,670 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7300 GetRequests, 7223 SyntacticMatches, 53 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=149, Invalid=500, Unknown=1, NotChecked=0, Total=650 [2020-12-09 20:20:31,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6788 states. [2020-12-09 20:20:31,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6788 to 6788. [2020-12-09 20:20:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6788 states. [2020-12-09 20:20:31,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6788 states to 6788 states and 7093 transitions. [2020-12-09 20:20:31,736 INFO L78 Accepts]: Start accepts. Automaton has 6788 states and 7093 transitions. Word has length 1461 [2020-12-09 20:20:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:20:31,736 INFO L481 AbstractCegarLoop]: Abstraction has 6788 states and 7093 transitions. [2020-12-09 20:20:31,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:20:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 6788 states and 7093 transitions. [2020-12-09 20:20:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1485 [2020-12-09 20:20:31,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:20:31,755 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:20:32,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 cvc4 --incremental --print-success --lang smt,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true,27 mathsat -unsat_core_generation=3 [2020-12-09 20:20:32,358 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:20:32,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:20:32,360 INFO L82 PathProgramCache]: Analyzing trace with hash 135658694, now seen corresponding path program 1 times [2020-12-09 20:20:32,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:20:32,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154199610] [2020-12-09 20:20:32,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/mathsat Starting monitored process 30 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with mathsat -unsat_core_generation=3 [2020-12-09 20:20:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:20:32,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 20:20:32,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:20:34,376 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-09 20:20:34,570 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-09 20:20:34,777 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-09 20:20:34,965 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-09 20:20:35,100 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 20:20:35,100 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 20:20:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 6605 backedges. 1588 proven. 4173 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2020-12-09 20:20:39,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:20:40,937 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-09 20:20:41,560 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 3, 1] term [2020-12-09 20:20:41,560 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 20:20:42,142 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 20:20:43,176 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-12-09 20:20:52,603 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 23 DAG size of output: 3 [2020-12-09 20:20:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 6605 backedges. 2454 proven. 3307 refuted. 0 times theorem prover too weak. 844 trivial. 0 not checked. [2020-12-09 20:20:59,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154199610] [2020-12-09 20:20:59,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2123579468] [2020-12-09 20:20:59,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/cvc4 Starting monitored process 31 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:21:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:21:00,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 1622 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:21:00,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:21:02,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6605 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 6111 trivial. 0 not checked. [2020-12-09 20:21:02,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:21:02,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 20:21:02,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12, 12] total 27 [2020-12-09 20:21:02,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527660554] [2020-12-09 20:21:02,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:21:02,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:21:02,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:21:02,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-12-09 20:21:02,320 INFO L87 Difference]: Start difference. First operand 6788 states and 7093 transitions. Second operand 6 states. [2020-12-09 20:21:08,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:21:08,629 INFO L93 Difference]: Finished difference Result 13972 states and 14598 transitions. [2020-12-09 20:21:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:21:08,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1484 [2020-12-09 20:21:08,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:21:08,635 INFO L225 Difference]: With dead ends: 13972 [2020-12-09 20:21:08,635 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:21:08,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4451 GetRequests, 4373 SyntacticMatches, 52 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=180, Invalid=576, Unknown=0, NotChecked=0, Total=756 [2020-12-09 20:21:08,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:21:08,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:21:08,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:21:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:21:08,642 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1484 [2020-12-09 20:21:08,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:21:08,643 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:21:08,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:21:08,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:21:08,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:21:09,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 cvc4 --incremental --print-success --lang smt,30 mathsat -unsat_core_generation=3 [2020-12-09 20:21:09,049 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:21:09,319 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 230 [2020-12-09 20:21:09,505 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 230 [2020-12-09 20:21:22,844 WARN L197 SmtUtils]: Spent 13.34 s on a formula simplification. DAG size of input: 203 DAG size of output: 79 [2020-12-09 20:21:36,990 WARN L197 SmtUtils]: Spent 14.15 s on a formula simplification. DAG size of input: 203 DAG size of output: 79 [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,993 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 20:21:36,994 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 20:21:36,995 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,996 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 20:21:36,997 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 20:21:36,998 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 20:21:36,999 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,000 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,001 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 20:21:37,002 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 20:21:37,003 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,004 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 20:21:37,005 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,006 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) ~a24~0)) (.cse11 (= (_ bv5 32) ~a15~0))) (let ((.cse8 (= (_ bv10 32) ~a21~0)) (.cse12 (= (_ bv6 32) ~a21~0)) (.cse20 (not (= (_ bv9 32) ~a15~0))) (.cse5 (not (bvsle ~a12~0 (_ bv4294967253 32)))) (.cse14 (bvslt (_ bv11 32) ~a12~0)) (.cse18 (not (= (_ bv8 32) ~a15~0))) (.cse15 (not (bvslt (_ bv80 32) ~a12~0))) (.cse7 (not .cse11)) (.cse19 (not .cse1))) (let ((.cse4 (or .cse7 (not (bvslt (_ bv4294967253 32) ~a12~0)) .cse19)) (.cse0 (or .cse18 .cse15)) (.cse13 (= (_ bv7 32) ~a21~0)) (.cse9 (not .cse14)) (.cse10 (or .cse20 .cse5)) (.cse16 (or (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967295 32)))) (and (or .cse20 (not .cse8) .cse15 .cse19) (or .cse7 (not .cse12) (not (= (_ bv2 32) ~a24~0)) .cse5)))) (.cse2 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32))))) (.cse17 (= (_ bv8 32) ~a21~0)) (.cse3 (= (_ bv9 32) ~a21~0)) (.cse6 (or .cse18 .cse19 (not (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967292 32)) (_ bv0 32)))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse7 .cse8 .cse9) (and .cse1 .cse2 .cse4 .cse3 .cse9 .cse10 .cse6) (and .cse1 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse7 .cse13 .cse5) (and .cse1 .cse13 .cse14 .cse15) (and .cse2 .cse9 .cse12 .cse16 .cse10) (and .cse1 .cse2 .cse7 .cse13 .cse15 .cse10) (and .cse1 .cse14 .cse15 .cse17) (and .cse1 .cse8 .cse5 .cse9) (and .cse1 .cse2 .cse12 .cse10) (and .cse1 .cse2 .cse8 .cse14 .cse16) (and .cse1 .cse2 .cse7 .cse17) (and .cse1 .cse3 .cse14 .cse15 .cse6))))) [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 20:21:37,007 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 20:21:37,008 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 20:21:37,009 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (= (_ bv1 32) ~a24~0)) (.cse11 (= (_ bv5 32) ~a15~0))) (let ((.cse8 (= (_ bv10 32) ~a21~0)) (.cse12 (= (_ bv6 32) ~a21~0)) (.cse20 (not (= (_ bv9 32) ~a15~0))) (.cse5 (not (bvsle ~a12~0 (_ bv4294967253 32)))) (.cse14 (bvslt (_ bv11 32) ~a12~0)) (.cse18 (not (= (_ bv8 32) ~a15~0))) (.cse15 (not (bvslt (_ bv80 32) ~a12~0))) (.cse7 (not .cse11)) (.cse19 (not .cse1))) (let ((.cse4 (or .cse7 (not (bvslt (_ bv4294967253 32) ~a12~0)) .cse19)) (.cse0 (or .cse18 .cse15)) (.cse13 (= (_ bv7 32) ~a21~0)) (.cse9 (not .cse14)) (.cse10 (or .cse20 .cse5)) (.cse16 (or (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967295 32)))) (and (or .cse20 (not .cse8) .cse15 .cse19) (or .cse7 (not .cse12) (not (= (_ bv2 32) ~a24~0)) .cse5)))) (.cse2 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32))))) (.cse17 (= (_ bv8 32) ~a21~0)) (.cse3 (= (_ bv9 32) ~a21~0)) (.cse6 (or .cse18 .cse19 (not (= (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967292 32)) (_ bv0 32)))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse1 .cse2 .cse7 .cse8 .cse9) (and .cse1 .cse2 .cse4 .cse3 .cse9 .cse10 .cse6) (and .cse1 .cse11 .cse12) (and .cse0 .cse1 .cse2 .cse7 .cse13 .cse5) (and .cse1 .cse13 .cse14 .cse15) (and .cse2 .cse9 .cse12 .cse16 .cse10) (and .cse1 .cse2 .cse7 .cse13 .cse15 .cse10) (and .cse1 .cse14 .cse15 .cse17) (and .cse1 .cse8 .cse5 .cse9) (and .cse1 .cse2 .cse12 .cse10) (and .cse1 .cse2 .cse8 .cse14 .cse16) (and .cse1 .cse2 .cse7 .cse17) (and .cse1 .cse3 .cse14 .cse15 .cse6))))) [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 20:21:37,010 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 20:21:37,011 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 20:21:37,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:21:37 BoogieIcfgContainer [2020-12-09 20:21:37,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:21:37,038 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:21:37,038 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:21:37,038 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:21:37,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:10:40" (3/4) ... [2020-12-09 20:21:37,041 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:21:37,063 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 20:21:37,064 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 20:21:37,066 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:21:37,067 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:21:37,171 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac88ebed-7d0f-4f69-b233-dd45f940190c/bin/utaipan/witness.graphml [2020-12-09 20:21:37,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:21:37,172 INFO L168 Benchmark]: Toolchain (without parser) took 659499.56 ms. Allocated memory was 60.8 MB in the beginning and 960.5 MB in the end (delta: 899.7 MB). Free memory was 40.0 MB in the beginning and 371.2 MB in the end (delta: -331.2 MB). Peak memory consumption was 566.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,172 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 43.3 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:21:37,172 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.07 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.7 MB in the beginning and 53.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 77.6 MB. Free memory was 53.0 MB in the beginning and 46.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,173 INFO L168 Benchmark]: Boogie Preprocessor took 47.84 ms. Allocated memory is still 77.6 MB. Free memory was 46.7 MB in the beginning and 41.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,173 INFO L168 Benchmark]: RCFGBuilder took 2439.77 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.1 MB in the beginning and 56.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,173 INFO L168 Benchmark]: TraceAbstraction took 656347.69 ms. Allocated memory was 94.4 MB in the beginning and 960.5 MB in the end (delta: 866.1 MB). Free memory was 56.3 MB in the beginning and 391.1 MB in the end (delta: -334.8 MB). Peak memory consumption was 695.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,174 INFO L168 Benchmark]: Witness Printer took 133.15 ms. Allocated memory is still 960.5 MB. Free memory was 391.1 MB in the beginning and 371.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 20:21:37,176 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.4 MB in the beginning and 43.3 MB in the end (delta: 84.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.07 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 39.7 MB in the beginning and 53.0 MB in the end (delta: -13.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.12 ms. Allocated memory is still 77.6 MB. Free memory was 53.0 MB in the beginning and 46.7 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.84 ms. Allocated memory is still 77.6 MB. Free memory was 46.7 MB in the beginning and 41.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2439.77 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 41.1 MB in the beginning and 56.9 MB in the end (delta: -15.8 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 656347.69 ms. Allocated memory was 94.4 MB in the beginning and 960.5 MB in the end (delta: 866.1 MB). Free memory was 56.3 MB in the beginning and 391.1 MB in the end (delta: -334.8 MB). Peak memory consumption was 695.2 MB. Max. memory is 16.1 GB. * Witness Printer took 133.15 ms. Allocated memory is still 960.5 MB. Free memory was 391.1 MB in the beginning and 371.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 155]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && 1bv32 == a24) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 9bv32 == a21) && ((!(5bv32 == a15) || !~bvslt32(4294967253bv32, a12)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32))) || ((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 10bv32 == a21) && !~bvslt32(11bv32, a12))) || ((((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && ((!(5bv32 == a15) || !~bvslt32(4294967253bv32, a12)) || !(1bv32 == a24))) && 9bv32 == a21) && !~bvslt32(11bv32, a12)) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32))) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && 1bv32 == a24) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 7bv32 == a21) && !~bvsle32(a12, 4294967253bv32))) || (((1bv32 == a24 && 7bv32 == a21) && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12))) || ((((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || ((((!(9bv32 == a15) || !(10bv32 == a21)) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)) && (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) || !~bvsle32(a12, 4294967253bv32))))) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || (((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 7bv32 == a21) && !~bvslt32(80bv32, a12)) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || (((1bv32 == a24 && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12)) && 8bv32 == a21)) || (((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || (((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 6bv32 == a21) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || ((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 10bv32 == a21) && ~bvslt32(11bv32, a12)) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || ((((!(9bv32 == a15) || !(10bv32 == a21)) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)) && (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) || !~bvsle32(a12, 4294967253bv32)))))) || (((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 8bv32 == a21)) || ((((1bv32 == a24 && 9bv32 == a21) && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12)) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && 1bv32 == a24) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 9bv32 == a21) && ((!(5bv32 == a15) || !~bvslt32(4294967253bv32, a12)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32))) || ((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 10bv32 == a21) && !~bvslt32(11bv32, a12))) || ((((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && ((!(5bv32 == a15) || !~bvslt32(4294967253bv32, a12)) || !(1bv32 == a24))) && 9bv32 == a21) && !~bvslt32(11bv32, a12)) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32))) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32)))) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && 1bv32 == a24) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 7bv32 == a21) && !~bvsle32(a12, 4294967253bv32))) || (((1bv32 == a24 && 7bv32 == a21) && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12))) || ((((!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || ((((!(9bv32 == a15) || !(10bv32 == a21)) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)) && (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) || !~bvsle32(a12, 4294967253bv32))))) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || (((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 7bv32 == a21) && !~bvslt32(80bv32, a12)) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || (((1bv32 == a24 && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12)) && 8bv32 == a21)) || (((1bv32 == a24 && 10bv32 == a21) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(11bv32, a12))) || (((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 6bv32 == a21) && (!(9bv32 == a15) || !~bvsle32(a12, 4294967253bv32)))) || ((((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && 10bv32 == a21) && ~bvslt32(11bv32, a12)) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || ((((!(9bv32 == a15) || !(10bv32 == a21)) || !~bvslt32(80bv32, a12)) || !(1bv32 == a24)) && (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) || !~bvsle32(a12, 4294967253bv32)))))) || (((1bv32 == a24 && !~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32))) && !(5bv32 == a15)) && 8bv32 == a21)) || ((((1bv32 == a24 && 9bv32 == a21) && ~bvslt32(11bv32, a12)) && !~bvslt32(80bv32, a12)) && ((!(8bv32 == a15) || !(1bv32 == a24)) || !(~bvadd64(input, 4294967292bv32) == 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 628.3s, OverallIterations: 18, TraceHistogramMax: 12, AutomataDifference: 420.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 27.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2102 SDtfs, 11914 SDslu, 492 SDs, 0 SdLazy, 35400 SolverSat, 2278 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 280.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44098 GetRequests, 43608 SyntacticMatches, 237 SemanticMatches, 253 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2590 ImplicationChecksByTransitivity, 196.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7000occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 18 MinimizatonAttempts, 2927 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 105 NumberOfFragments, 869 HoareAnnotationTreeSize, 3 FomulaSimplifications, 13864 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 5374 FormulaSimplificationTreeSizeReductionInter, 27.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 6.8s SatisfiabilityAnalysisTime, 192.2s InterpolantComputationTime, 25235 NumberOfCodeBlocks, 25235 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 44019 ConstructedInterpolants, 0 QuantifiedInterpolants, 450160000 SizeOfPredicates, 112 NumberOfNonLiveVariables, 28076 ConjunctsInSsa, 213 ConjunctsInUnsatCore, 49 InterpolantComputations, 16 PerfectInterpolantSequences, 120302/148514 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...