./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 3e3b23830164ac928865389816d61d6dc5db2013 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 3e3b23830164ac928865389816d61d6dc5db2013 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:05:31,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:05:31,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:05:31,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:05:31,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:05:31,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:05:31,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:05:31,393 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:05:31,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:05:31,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:05:31,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:05:31,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:05:31,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:05:31,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:05:31,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:05:31,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:05:31,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:05:31,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:05:31,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:05:31,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:05:31,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:05:31,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:05:31,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:05:31,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:05:31,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:05:31,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:05:31,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:05:31,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:05:31,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:05:31,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:05:31,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:05:31,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:05:31,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:05:31,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:05:31,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:05:31,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:05:31,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:05:31,419 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:05:31,419 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:05:31,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:05:31,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:05:31,421 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:05:31,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:05:31,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:05:31,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:05:31,444 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:05:31,444 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:05:31,444 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:05:31,444 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:05:31,444 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:05:31,444 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:05:31,445 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:05:31,445 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:05:31,445 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:05:31,445 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:05:31,445 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:05:31,446 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:05:31,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:05:31,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:05:31,447 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:05:31,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:05:31,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:05:31,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:05:31,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:05:31,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:05:31,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:05:31,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:05:31,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:05:31,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:05:31,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:05:31,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:05:31,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:05:31,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:05:31,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:05:31,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:05:31,450 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e3b23830164ac928865389816d61d6dc5db2013 [2020-12-09 06:05:31,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:05:31,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:05:31,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:05:31,646 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:05:31,646 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:05:31,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2020-12-09 06:05:31,690 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/4e824ad5c/8bf76bc40b034f2288eb4f7fc0563dde/FLAG5af2778f1 [2020-12-09 06:05:32,113 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:05:32,114 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2020-12-09 06:05:32,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/4e824ad5c/8bf76bc40b034f2288eb4f7fc0563dde/FLAG5af2778f1 [2020-12-09 06:05:32,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/4e824ad5c/8bf76bc40b034f2288eb4f7fc0563dde [2020-12-09 06:05:32,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:05:32,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:05:32,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:05:32,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:05:32,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:05:32,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf65ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32, skipping insertion in model container [2020-12-09 06:05:32,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:05:32,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:05:32,323 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2020-12-09 06:05:32,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:05:32,481 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:05:32,504 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2020-12-09 06:05:32,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:05:32,583 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:05:32,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32 WrapperNode [2020-12-09 06:05:32,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:05:32,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:05:32,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:05:32,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:05:32,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:05:32,672 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:05:32,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:05:32,672 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:05:32,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... [2020-12-09 06:05:32,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:05:32,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:05:32,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:05:32,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:05:32,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:05:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:05:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:05:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:05:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:05:43,409 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:05:43,409 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 06:05:43,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:05:43 BoogieIcfgContainer [2020-12-09 06:05:43,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:05:43,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:05:43,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:05:43,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:05:43,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:05:32" (1/3) ... [2020-12-09 06:05:43,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a68be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:05:43, skipping insertion in model container [2020-12-09 06:05:43,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:05:32" (2/3) ... [2020-12-09 06:05:43,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a68be2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:05:43, skipping insertion in model container [2020-12-09 06:05:43,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:05:43" (3/3) ... [2020-12-09 06:05:43,417 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2020-12-09 06:05:43,427 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:05:43,430 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:05:43,437 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:05:43,453 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:05:43,453 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:05:43,453 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:05:43,453 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:05:43,453 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:05:43,453 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:05:43,454 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:05:43,454 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:05:43,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 06:05:43,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 06:05:43,465 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:05:43,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 06:05:43,466 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:05:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:05:43,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1037750863, now seen corresponding path program 1 times [2020-12-09 06:05:43,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:05:43,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109574116] [2020-12-09 06:05:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:05:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:05:43,608 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 06:05:43,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109574116] [2020-12-09 06:05:43,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:05:43,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:05:43,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901832511] [2020-12-09 06:05:43,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:05:43,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:05:43,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:05:43,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:05:43,623 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 06:05:43,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:05:43,683 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 06:05:43,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:05:43,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 06:05:43,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:05:43,690 INFO L225 Difference]: With dead ends: 23 [2020-12-09 06:05:43,690 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 06:05:43,692 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 06:05:43,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 06:05:43,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 06:05:43,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 06:05:43,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 06:05:43,713 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 06:05:43,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:05:43,713 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 06:05:43,713 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:05:43,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 06:05:43,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:05:43,714 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:05:43,714 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 06:05:43,714 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:05:43,714 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:05:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:05:43,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1705954001, now seen corresponding path program 1 times [2020-12-09 06:05:43,715 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:05:43,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931788097] [2020-12-09 06:05:43,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:05:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:05:44,001 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 06:05:44,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931788097] [2020-12-09 06:05:44,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124444907] [2020-12-09 06:05:44,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:05:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:05:44,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 06:05:44,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:05:44,399 WARN L197 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 1337 DAG size of output: 79 [2020-12-09 06:05:44,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,443 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,450 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,454 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,458 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,463 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,470 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,472 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,478 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,480 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,484 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,490 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,491 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,494 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,498 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,502 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,504 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,505 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,506 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,508 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,518 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,523 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,524 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,529 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,531 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,533 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,537 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,538 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,539 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,541 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,543 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,546 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,549 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,550 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,552 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,557 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,558 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,560 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,563 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,568 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,569 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,572 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,576 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,577 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,579 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,580 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,583 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,586 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,587 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,588 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,591 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,595 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,596 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:05:44,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 06:05:44,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 06:05:44,605 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 06:05:44,608 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:05:44,614 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 7, 5, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,614 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 06:05:44,615 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,615 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:05:44,616 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,616 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:05:44,617 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 5, 1] term [2020-12-09 06:05:44,617 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:05:44,618 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,618 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:05:44,618 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 7, 5, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,619 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 06:05:44,619 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,619 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:05:44,620 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,620 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:05:44,621 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 5, 1] term [2020-12-09 06:05:44,621 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:05:44,623 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 5, 5, 4, 5, 3, 5, 2, 5, 1] term [2020-12-09 06:05:44,623 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:05:44,697 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-12-09 06:05:44,697 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:05:44,699 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:05:44,713 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 06:05:44,713 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:05:45,048 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 2088 DAG size of output: 1607 [2020-12-09 06:05:45,071 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 06:05:45,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1735553011] [2020-12-09 06:05:45,087 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 06:05:45,088 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:05:45,091 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:05:45,095 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:05:45,095 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:05:45,260 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 46 [2020-12-09 06:05:46,550 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 46 [2020-12-09 06:05:48,175 WARN L197 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 2476 DAG size of output: 2335 [2020-12-09 06:06:04,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 06:06:04,859 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 06:06:04,871 INFO L168 Benchmark]: Toolchain (without parser) took 32726.05 ms. Allocated memory was 104.9 MB in the beginning and 960.5 MB in the end (delta: 855.6 MB). Free memory was 72.1 MB in the beginning and 351.6 MB in the end (delta: -279.5 MB). Peak memory consumption was 703.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,872 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 71.3 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:06:04,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 440.36 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 70.9 MB in the end (delta: 918.4 kB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,876 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.45 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 60.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,878 INFO L168 Benchmark]: Boogie Preprocessor took 56.83 ms. Allocated memory is still 104.9 MB. Free memory was 60.9 MB in the beginning and 54.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,881 INFO L168 Benchmark]: RCFGBuilder took 10681.75 ms. Allocated memory was 104.9 MB in the beginning and 385.9 MB in the end (delta: 281.0 MB). Free memory was 54.7 MB in the beginning and 218.7 MB in the end (delta: -164.0 MB). Peak memory consumption was 209.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,884 INFO L168 Benchmark]: TraceAbstraction took 21454.66 ms. Allocated memory was 385.9 MB in the beginning and 960.5 MB in the end (delta: 574.6 MB). Free memory was 218.7 MB in the beginning and 351.6 MB in the end (delta: -132.9 MB). Peak memory consumption was 567.6 MB. Max. memory is 16.1 GB. [2020-12-09 06:06:04,889 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 71.3 MB. Free memory is still 37.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 440.36 ms. Allocated memory is still 104.9 MB. Free memory was 71.8 MB in the beginning and 70.9 MB in the end (delta: 918.4 kB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.45 ms. Allocated memory is still 104.9 MB. Free memory was 70.9 MB in the beginning and 60.9 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.83 ms. Allocated memory is still 104.9 MB. Free memory was 60.9 MB in the beginning and 54.7 MB in the end (delta: 6.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10681.75 ms. Allocated memory was 104.9 MB in the beginning and 385.9 MB in the end (delta: 281.0 MB). Free memory was 54.7 MB in the beginning and 218.7 MB in the end (delta: -164.0 MB). Peak memory consumption was 209.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21454.66 ms. Allocated memory was 385.9 MB in the beginning and 960.5 MB in the end (delta: 574.6 MB). Free memory was 218.7 MB in the beginning and 351.6 MB in the end (delta: -132.9 MB). Peak memory consumption was 567.6 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 06:06:06,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:06:06,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:06:06,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:06:06,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:06:06,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:06:06,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:06:06,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:06:06,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:06:06,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:06:06,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:06:06,441 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:06:06,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:06:06,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:06:06,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:06:06,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:06:06,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:06:06,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:06:06,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:06:06,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:06:06,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:06:06,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:06:06,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:06:06,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:06:06,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:06:06,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:06:06,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:06:06,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:06:06,463 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:06:06,464 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:06:06,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:06:06,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:06:06,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:06:06,466 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:06:06,467 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:06:06,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:06:06,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:06:06,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:06:06,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:06:06,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:06:06,469 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:06:06,470 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:06:06,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:06:06,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:06:06,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:06:06,500 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:06:06,500 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:06:06,500 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:06:06,500 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:06:06,500 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:06:06,500 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:06:06,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:06:06,501 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:06:06,502 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:06:06,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:06:06,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:06:06,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:06:06,504 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:06:06,505 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:06:06,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:06:06,505 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:06:06,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:06:06,505 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e3b23830164ac928865389816d61d6dc5db2013 [2020-12-09 06:06:06,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:06:06,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:06:06,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:06:06,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:06:06,747 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:06:06,747 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2020-12-09 06:06:06,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/ca7e3b5df/02abb742dcda433599ebfc5fb16e41ca/FLAG6c20cb1f5 [2020-12-09 06:06:07,240 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:06:07,241 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c [2020-12-09 06:06:07,254 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/ca7e3b5df/02abb742dcda433599ebfc5fb16e41ca/FLAG6c20cb1f5 [2020-12-09 06:06:07,267 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/data/ca7e3b5df/02abb742dcda433599ebfc5fb16e41ca [2020-12-09 06:06:07,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:06:07,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:06:07,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:07,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:06:07,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:06:07,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4940b373 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07, skipping insertion in model container [2020-12-09 06:06:07,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:06:07,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:06:07,499 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2020-12-09 06:06:07,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:07,710 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:06:07,732 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_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/sv-benchmarks/c/eca-rers2012/Problem14_label03.c[5277,5290] [2020-12-09 06:06:07,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:06:07,837 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:06:07,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07 WrapperNode [2020-12-09 06:06:07,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:06:07,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:07,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:06:07,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:06:07,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,921 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:06:07,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:06:07,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:06:07,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:06:07,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,978 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... [2020-12-09 06:06:07,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:06:07,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:06:07,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:06:07,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:06:08,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:06:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:06:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:06:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:06:10,447 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:06:10,448 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 06:06:10,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:10 BoogieIcfgContainer [2020-12-09 06:06:10,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:06:10,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:06:10,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:06:10,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:06:10,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:06:07" (1/3) ... [2020-12-09 06:06:10,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285e48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:10, skipping insertion in model container [2020-12-09 06:06:10,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:06:07" (2/3) ... [2020-12-09 06:06:10,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@285e48d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:06:10, skipping insertion in model container [2020-12-09 06:06:10,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:10" (3/3) ... [2020-12-09 06:06:10,454 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label03.c [2020-12-09 06:06:10,463 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:06:10,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:06:10,473 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:06:10,490 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:06:10,490 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:06:10,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:06:10,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:06:10,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:06:10,490 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:06:10,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:06:10,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:06:10,503 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 06:06:10,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-09 06:06:10,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:10,508 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, 1, 1, 1, 1] [2020-12-09 06:06:10,509 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:10,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:10,513 INFO L82 PathProgramCache]: Analyzing trace with hash 2122806209, now seen corresponding path program 1 times [2020-12-09 06:06:10,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:10,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509221703] [2020-12-09 06:06:10,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:10,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:06:10,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:10,710 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 06:06:10,710 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:10,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509221703] [2020-12-09 06:06:10,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:10,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:06:10,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851480055] [2020-12-09 06:06:10,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:10,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:10,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:10,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:06:10,731 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 06:06:13,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:13,886 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 06:06:13,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:13,887 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-09 06:06:13,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:13,897 INFO L225 Difference]: With dead ends: 669 [2020-12-09 06:06:13,897 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 06:06:13,900 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 06:06:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 06:06:13,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 06:06:13,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 06:06:13,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 06:06:13,942 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 51 [2020-12-09 06:06:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:13,942 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 06:06:13,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 06:06:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-09 06:06:13,946 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:13,946 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, 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] [2020-12-09 06:06:14,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:06:14,148 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:14,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:14,151 INFO L82 PathProgramCache]: Analyzing trace with hash 233973617, now seen corresponding path program 1 times [2020-12-09 06:06:14,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:14,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [390727571] [2020-12-09 06:06:14,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:14,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:06:14,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:06:14,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:14,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [390727571] [2020-12-09 06:06:14,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:14,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:06:14,335 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998922530] [2020-12-09 06:06:14,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:14,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:14,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:14,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:06:14,337 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 06:06:17,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:17,437 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 06:06:17,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:17,438 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-09 06:06:17,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:17,442 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 06:06:17,442 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 06:06:17,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 06:06:17,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 06:06:17,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 06:06:17,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 06:06:17,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 06:06:17,467 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 117 [2020-12-09 06:06:17,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:17,467 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 06:06:17,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 06:06:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-09 06:06:17,469 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:17,469 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, 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] [2020-12-09 06:06:17,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:06:17,671 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:17,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:17,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1221588022, now seen corresponding path program 1 times [2020-12-09 06:06:17,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:17,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518734599] [2020-12-09 06:06:17,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:17,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:06:17,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:17,845 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:06:17,845 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:17,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518734599] [2020-12-09 06:06:17,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:17,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:06:17,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569606989] [2020-12-09 06:06:17,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:17,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:17,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:17,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:06:17,847 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 06:06:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:20,570 INFO L93 Difference]: Finished difference Result 1966 states and 2656 transitions. [2020-12-09 06:06:20,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:20,571 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-12-09 06:06:20,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:20,576 INFO L225 Difference]: With dead ends: 1966 [2020-12-09 06:06:20,576 INFO L226 Difference]: Without dead ends: 1252 [2020-12-09 06:06:20,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 117 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 06:06:20,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2020-12-09 06:06:20,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 1250. [2020-12-09 06:06:20,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 06:06:20,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1557 transitions. [2020-12-09 06:06:20,598 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1557 transitions. Word has length 119 [2020-12-09 06:06:20,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:20,598 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1557 transitions. [2020-12-09 06:06:20,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:20,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1557 transitions. [2020-12-09 06:06:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-09 06:06:20,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:20,600 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, 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] [2020-12-09 06:06:20,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 06:06:20,802 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:20,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:20,802 INFO L82 PathProgramCache]: Analyzing trace with hash 516842708, now seen corresponding path program 1 times [2020-12-09 06:06:20,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:20,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129734567] [2020-12-09 06:06:20,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:20,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:06:20,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:06:21,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:06:21,124 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:06:21,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129734567] [2020-12-09 06:06:21,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [319981956] [2020-12-09 06:06:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:06:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:21,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:06:21,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:06:21,341 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:21,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:06:21,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 9 [2020-12-09 06:06:21,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084118065] [2020-12-09 06:06:21,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:06:21,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:21,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:06:21,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-12-09 06:06:21,342 INFO L87 Difference]: Start difference. First operand 1250 states and 1557 transitions. Second operand 4 states. [2020-12-09 06:06:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:27,750 INFO L93 Difference]: Finished difference Result 2912 states and 3810 transitions. [2020-12-09 06:06:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:06:27,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2020-12-09 06:06:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:27,757 INFO L225 Difference]: With dead ends: 2912 [2020-12-09 06:06:27,758 INFO L226 Difference]: Without dead ends: 1842 [2020-12-09 06:06:27,759 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-12-09 06:06:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1842 states. [2020-12-09 06:06:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1842 to 1784. [2020-12-09 06:06:27,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2020-12-09 06:06:27,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2258 transitions. [2020-12-09 06:06:27,789 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2258 transitions. Word has length 131 [2020-12-09 06:06:27,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:27,790 INFO L481 AbstractCegarLoop]: Abstraction has 1784 states and 2258 transitions. [2020-12-09 06:06:27,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:06:27,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2258 transitions. [2020-12-09 06:06:27,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2020-12-09 06:06:27,794 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:27,794 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:28,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3,6 cvc4 --incremental --print-success --lang smt [2020-12-09 06:06:28,197 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:28,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:28,199 INFO L82 PathProgramCache]: Analyzing trace with hash 701718537, now seen corresponding path program 1 times [2020-12-09 06:06:28,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:28,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1546246691] [2020-12-09 06:06:28,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:28,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:06:28,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:28,552 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-09 06:06:28,552 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:28,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1546246691] [2020-12-09 06:06:28,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:28,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:06:28,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321518726] [2020-12-09 06:06:28,553 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:06:28,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:28,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:06:28,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:06:28,553 INFO L87 Difference]: Start difference. First operand 1784 states and 2258 transitions. Second operand 4 states. [2020-12-09 06:06:30,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:30,875 INFO L93 Difference]: Finished difference Result 3061 states and 3967 transitions. [2020-12-09 06:06:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:06:30,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 292 [2020-12-09 06:06:30,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:30,882 INFO L225 Difference]: With dead ends: 3061 [2020-12-09 06:06:30,882 INFO L226 Difference]: Without dead ends: 1606 [2020-12-09 06:06:30,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 289 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 06:06:30,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-09 06:06:30,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-09 06:06:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-09 06:06:30,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2047 transitions. [2020-12-09 06:06:30,906 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2047 transitions. Word has length 292 [2020-12-09 06:06:30,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:30,906 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 2047 transitions. [2020-12-09 06:06:30,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:06:30,906 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2047 transitions. [2020-12-09 06:06:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-12-09 06:06:30,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:30,911 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-12-09 06:06:31,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 06:06:31,113 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:31,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1392251547, now seen corresponding path program 1 times [2020-12-09 06:06:31,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:31,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750213002] [2020-12-09 06:06:31,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:31,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:06:31,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-12-09 06:06:31,744 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:31,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750213002] [2020-12-09 06:06:31,745 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:06:31,745 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:06:31,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20283686] [2020-12-09 06:06:31,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:31,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:31,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:31,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:06:31,746 INFO L87 Difference]: Start difference. First operand 1606 states and 2047 transitions. Second operand 3 states. [2020-12-09 06:06:33,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:33,765 INFO L93 Difference]: Finished difference Result 2854 states and 3727 transitions. [2020-12-09 06:06:33,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:33,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 387 [2020-12-09 06:06:33,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:33,771 INFO L225 Difference]: With dead ends: 2854 [2020-12-09 06:06:33,771 INFO L226 Difference]: Without dead ends: 1606 [2020-12-09 06:06:33,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 385 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 06:06:33,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2020-12-09 06:06:33,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2020-12-09 06:06:33,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1606 states. [2020-12-09 06:06:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2041 transitions. [2020-12-09 06:06:33,794 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2041 transitions. Word has length 387 [2020-12-09 06:06:33,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:33,795 INFO L481 AbstractCegarLoop]: Abstraction has 1606 states and 2041 transitions. [2020-12-09 06:06:33,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:33,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2041 transitions. [2020-12-09 06:06:33,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-12-09 06:06:33,802 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:33,803 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, 5, 5, 5, 5, 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, 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] [2020-12-09 06:06:34,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 06:06:34,005 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:34,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:34,006 INFO L82 PathProgramCache]: Analyzing trace with hash 838049388, now seen corresponding path program 1 times [2020-12-09 06:06:34,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:34,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746328459] [2020-12-09 06:06:34,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:34,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:06:34,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:34,659 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 424 proven. 135 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-09 06:06:34,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:06:35,483 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 559 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-09 06:06:35,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746328459] [2020-12-09 06:06:35,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:06:35,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 06:06:35,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760681065] [2020-12-09 06:06:35,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:35,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:35,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:35,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:06:35,485 INFO L87 Difference]: Start difference. First operand 1606 states and 2041 transitions. Second operand 3 states. [2020-12-09 06:06:41,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:41,945 INFO L93 Difference]: Finished difference Result 3388 states and 4477 transitions. [2020-12-09 06:06:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:41,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 491 [2020-12-09 06:06:41,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:41,953 INFO L225 Difference]: With dead ends: 3388 [2020-12-09 06:06:41,953 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 06:06:41,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 980 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:06:41,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 06:06:41,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 06:06:41,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 06:06:41,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2647 transitions. [2020-12-09 06:06:41,982 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2647 transitions. Word has length 491 [2020-12-09 06:06:41,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:41,982 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2647 transitions. [2020-12-09 06:06:41,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:41,982 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2647 transitions. [2020-12-09 06:06:41,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2020-12-09 06:06:41,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:41,986 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:42,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-12-09 06:06:42,186 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:42,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:42,187 INFO L82 PathProgramCache]: Analyzing trace with hash -963708402, now seen corresponding path program 1 times [2020-12-09 06:06:42,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:42,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1623383015] [2020-12-09 06:06:42,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 06:06:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:42,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:06:42,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:42,797 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 436 proven. 159 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-09 06:06:42,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:06:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-12-09 06:06:43,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1623383015] [2020-12-09 06:06:43,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:06:43,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 06:06:43,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509051559] [2020-12-09 06:06:43,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:43,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:43,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:43,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:06:43,846 INFO L87 Difference]: Start difference. First operand 2140 states and 2647 transitions. Second operand 3 states. [2020-12-09 06:06:49,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:49,579 INFO L93 Difference]: Finished difference Result 4990 states and 6343 transitions. [2020-12-09 06:06:49,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:06:49,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 503 [2020-12-09 06:06:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:49,591 INFO L225 Difference]: With dead ends: 4990 [2020-12-09 06:06:49,591 INFO L226 Difference]: Without dead ends: 3208 [2020-12-09 06:06:49,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1004 GetRequests, 1000 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 06:06:49,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-09 06:06:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 2852. [2020-12-09 06:06:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-09 06:06:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3545 transitions. [2020-12-09 06:06:49,632 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3545 transitions. Word has length 503 [2020-12-09 06:06:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:49,633 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3545 transitions. [2020-12-09 06:06:49,633 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:06:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3545 transitions. [2020-12-09 06:06:49,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 520 [2020-12-09 06:06:49,636 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:49,636 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, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:06:49,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 06:06:49,838 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:49,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1643069158, now seen corresponding path program 1 times [2020-12-09 06:06:49,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:49,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406413781] [2020-12-09 06:06:49,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:50,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:06:50,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:50,699 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 395 proven. 277 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-09 06:06:50,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:06:52,162 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 643 proven. 29 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-09 06:06:52,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406413781] [2020-12-09 06:06:52,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [226945738] [2020-12-09 06:06:52,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:52,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:06:52,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 501 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 06:06:52,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:06:52,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:06:52,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4] total 11 [2020-12-09 06:06:52,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479955371] [2020-12-09 06:06:52,977 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:06:52,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:52,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:06:52,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-09 06:06:52,978 INFO L87 Difference]: Start difference. First operand 2852 states and 3545 transitions. Second operand 6 states. [2020-12-09 06:06:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:06:55,884 INFO L93 Difference]: Finished difference Result 5470 states and 6853 transitions. [2020-12-09 06:06:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:06:55,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 519 [2020-12-09 06:06:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:06:55,893 INFO L225 Difference]: With dead ends: 5470 [2020-12-09 06:06:55,893 INFO L226 Difference]: Without dead ends: 2852 [2020-12-09 06:06:55,895 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1554 GetRequests, 1544 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-12-09 06:06:55,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2852 states. [2020-12-09 06:06:55,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2852 to 2852. [2020-12-09 06:06:55,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2852 states. [2020-12-09 06:06:55,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2852 states to 2852 states and 3103 transitions. [2020-12-09 06:06:55,925 INFO L78 Accepts]: Start accepts. Automaton has 2852 states and 3103 transitions. Word has length 519 [2020-12-09 06:06:55,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:06:55,925 INFO L481 AbstractCegarLoop]: Abstraction has 2852 states and 3103 transitions. [2020-12-09 06:06:55,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:06:55,926 INFO L276 IsEmpty]: Start isEmpty. Operand 2852 states and 3103 transitions. [2020-12-09 06:06:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 841 [2020-12-09 06:06:55,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:06:55,932 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:06:56,333 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 06:06:56,335 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:06:56,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:06:56,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1603204639, now seen corresponding path program 1 times [2020-12-09 06:06:56,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:06:56,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [245915515] [2020-12-09 06:06:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:06:56,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:06:56,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 06:06:56,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:06:57,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 1099 proven. 420 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-12-09 06:06:57,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:06:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1995 backedges. 1519 proven. 0 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2020-12-09 06:06:59,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [245915515] [2020-12-09 06:06:59,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:06:59,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 06:06:59,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629178323] [2020-12-09 06:06:59,839 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:06:59,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:06:59,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:06:59,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:06:59,839 INFO L87 Difference]: Start difference. First operand 2852 states and 3103 transitions. Second operand 3 states. [2020-12-09 06:07:02,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:02,340 INFO L93 Difference]: Finished difference Result 5702 states and 6259 transitions. [2020-12-09 06:07:02,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:07:02,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 840 [2020-12-09 06:07:02,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:02,351 INFO L225 Difference]: With dead ends: 5702 [2020-12-09 06:07:02,351 INFO L226 Difference]: Without dead ends: 3208 [2020-12-09 06:07:02,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1678 GetRequests, 1674 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:07:02,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3208 states. [2020-12-09 06:07:02,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3208 to 3208. [2020-12-09 06:07:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-12-09 06:07:02,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3502 transitions. [2020-12-09 06:07:02,389 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3502 transitions. Word has length 840 [2020-12-09 06:07:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:02,390 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3502 transitions. [2020-12-09 06:07:02,390 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:07:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3502 transitions. [2020-12-09 06:07:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2020-12-09 06:07:02,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:02,400 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, 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, 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, 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, 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] [2020-12-09 06:07:02,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-12-09 06:07:02,602 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:02,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1621063681, now seen corresponding path program 1 times [2020-12-09 06:07:02,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:02,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307513235] [2020-12-09 06:07:02,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:02,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:07:02,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:03,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2527 backedges. 1631 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2020-12-09 06:07:03,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:03,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307513235] [2020-12-09 06:07:03,599 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:07:03,599 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:07:03,599 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600118367] [2020-12-09 06:07:03,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:07:03,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:03,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:07:03,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:07:03,600 INFO L87 Difference]: Start difference. First operand 3208 states and 3502 transitions. Second operand 3 states. [2020-12-09 06:07:05,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:05,388 INFO L93 Difference]: Finished difference Result 6948 states and 7656 transitions. [2020-12-09 06:07:05,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:07:05,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 938 [2020-12-09 06:07:05,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:05,403 INFO L225 Difference]: With dead ends: 6948 [2020-12-09 06:07:05,403 INFO L226 Difference]: Without dead ends: 4098 [2020-12-09 06:07:05,405 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 937 GetRequests, 936 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 06:07:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4098 states. [2020-12-09 06:07:05,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4098 to 4098. [2020-12-09 06:07:05,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4098 states. [2020-12-09 06:07:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4399 transitions. [2020-12-09 06:07:05,455 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4399 transitions. Word has length 938 [2020-12-09 06:07:05,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:05,456 INFO L481 AbstractCegarLoop]: Abstraction has 4098 states and 4399 transitions. [2020-12-09 06:07:05,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:07:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4399 transitions. [2020-12-09 06:07:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2020-12-09 06:07:05,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:05,464 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, 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, 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, 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, 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] [2020-12-09 06:07:05,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-12-09 06:07:05,666 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:05,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:05,668 INFO L82 PathProgramCache]: Analyzing trace with hash -767219674, now seen corresponding path program 1 times [2020-12-09 06:07:05,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:05,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516965278] [2020-12-09 06:07:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:06,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:06,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 06:07:06,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 1865 proven. 420 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2020-12-09 06:07:09,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:10,824 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 06:07:10,824 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:07:13,880 WARN L197 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 19 DAG size of output: 7 [2020-12-09 06:07:16,877 INFO L134 CoverageAnalysis]: Checked inductivity of 3121 backedges. 2285 proven. 0 refuted. 0 times theorem prover too weak. 836 trivial. 0 not checked. [2020-12-09 06:07:16,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516965278] [2020-12-09 06:07:16,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:07:16,878 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [10] total 19 [2020-12-09 06:07:16,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751998152] [2020-12-09 06:07:16,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-09 06:07:16,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:16,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-09 06:07:16,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 06:07:16,879 INFO L87 Difference]: Start difference. First operand 4098 states and 4399 transitions. Second operand 11 states. [2020-12-09 06:07:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:19,914 INFO L93 Difference]: Finished difference Result 8002 states and 8604 transitions. [2020-12-09 06:07:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 06:07:19,915 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 1031 [2020-12-09 06:07:19,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:19,928 INFO L225 Difference]: With dead ends: 8002 [2020-12-09 06:07:19,928 INFO L226 Difference]: Without dead ends: 4253 [2020-12-09 06:07:19,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2060 GetRequests, 2006 SyntacticMatches, 36 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2020-12-09 06:07:19,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-12-09 06:07:19,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-12-09 06:07:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-12-09 06:07:19,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 4555 transitions. [2020-12-09 06:07:19,969 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 4555 transitions. Word has length 1031 [2020-12-09 06:07:19,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:19,970 INFO L481 AbstractCegarLoop]: Abstraction has 4253 states and 4555 transitions. [2020-12-09 06:07:19,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-09 06:07:19,970 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 4555 transitions. [2020-12-09 06:07:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1109 [2020-12-09 06:07:19,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:19,979 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, 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, 8, 8, 8, 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, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:07:20,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-12-09 06:07:20,181 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:20,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:20,183 INFO L82 PathProgramCache]: Analyzing trace with hash -124584833, now seen corresponding path program 1 times [2020-12-09 06:07:20,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:20,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [919529996] [2020-12-09 06:07:20,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:20,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:20,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:20,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:22,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 1260 proven. 2098 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-12-09 06:07:22,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:23,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 2710 proven. 75 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-12-09 06:07:23,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [919529996] [2020-12-09 06:07:23,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [779270710] [2020-12-09 06:07:23,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:24,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:24,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3778 backedges. 1309 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2020-12-09 06:07:25,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:25,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:07:25,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 12 [2020-12-09 06:07:25,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479201873] [2020-12-09 06:07:25,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:07:25,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:25,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:07:25,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2020-12-09 06:07:25,751 INFO L87 Difference]: Start difference. First operand 4253 states and 4555 transitions. Second operand 4 states. [2020-12-09 06:07:28,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:28,187 INFO L93 Difference]: Finished difference Result 8392 states and 9037 transitions. [2020-12-09 06:07:28,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:07:28,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1108 [2020-12-09 06:07:28,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:28,201 INFO L225 Difference]: With dead ends: 8392 [2020-12-09 06:07:28,201 INFO L226 Difference]: Without dead ends: 4497 [2020-12-09 06:07:28,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3323 GetRequests, 3311 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-12-09 06:07:28,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4497 states. [2020-12-09 06:07:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4497 to 4431. [2020-12-09 06:07:28,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4431 states. [2020-12-09 06:07:28,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 4739 transitions. [2020-12-09 06:07:28,240 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 4739 transitions. Word has length 1108 [2020-12-09 06:07:28,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:28,240 INFO L481 AbstractCegarLoop]: Abstraction has 4431 states and 4739 transitions. [2020-12-09 06:07:28,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:07:28,240 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 4739 transitions. [2020-12-09 06:07:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2020-12-09 06:07:28,249 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:28,250 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, 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, 8, 8, 8, 8, 8, 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, 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, 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 06:07:28,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3,17 cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:28,652 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:28,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:28,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1471014467, now seen corresponding path program 1 times [2020-12-09 06:07:28,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:28,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1664934689] [2020-12-09 06:07:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-12-09 06:07:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:29,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:29,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:30,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 1267 proven. 2135 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-12-09 06:07:30,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:32,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 2747 proven. 82 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-12-09 06:07:32,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1664934689] [2020-12-09 06:07:32,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1861507165] [2020-12-09 06:07:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 19 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:32,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:32,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:07:32,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3822 backedges. 1314 proven. 0 refuted. 0 times theorem prover too weak. 2508 trivial. 0 not checked. [2020-12-09 06:07:34,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:34,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:07:34,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 14 [2020-12-09 06:07:34,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438756641] [2020-12-09 06:07:34,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:07:34,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:34,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:07:34,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:34,070 INFO L87 Difference]: Start difference. First operand 4431 states and 4739 transitions. Second operand 6 states. [2020-12-09 06:07:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:35,571 INFO L93 Difference]: Finished difference Result 8598 states and 9211 transitions. [2020-12-09 06:07:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:07:35,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1115 [2020-12-09 06:07:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:35,578 INFO L225 Difference]: With dead ends: 8598 [2020-12-09 06:07:35,578 INFO L226 Difference]: Without dead ends: 4431 [2020-12-09 06:07:35,581 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3342 GetRequests, 3329 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:35,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4431 states. [2020-12-09 06:07:35,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4431 to 4431. [2020-12-09 06:07:35,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4431 states. [2020-12-09 06:07:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4431 states to 4431 states and 4725 transitions. [2020-12-09 06:07:35,617 INFO L78 Accepts]: Start accepts. Automaton has 4431 states and 4725 transitions. Word has length 1115 [2020-12-09 06:07:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:35,618 INFO L481 AbstractCegarLoop]: Abstraction has 4431 states and 4725 transitions. [2020-12-09 06:07:35,618 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:07:35,618 INFO L276 IsEmpty]: Start isEmpty. Operand 4431 states and 4725 transitions. [2020-12-09 06:07:35,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1122 [2020-12-09 06:07:35,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:35,627 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, 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, 8, 8, 8, 8, 8, 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, 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, 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 06:07:36,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3,19 cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:36,030 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:36,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:36,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1007732366, now seen corresponding path program 1 times [2020-12-09 06:07:36,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:36,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106444607] [2020-12-09 06:07:36,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-12-09 06:07:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:36,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:36,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3858 backedges. 1273 proven. 2165 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-12-09 06:07:37,849 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3858 backedges. 2777 proven. 88 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-12-09 06:07:39,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106444607] [2020-12-09 06:07:39,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1097745786] [2020-12-09 06:07:39,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:40,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:07:40,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:41,443 INFO L134 CoverageAnalysis]: Checked inductivity of 3858 backedges. 1322 proven. 0 refuted. 0 times theorem prover too weak. 2536 trivial. 0 not checked. [2020-12-09 06:07:41,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:41,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:07:41,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 14 [2020-12-09 06:07:41,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038005668] [2020-12-09 06:07:41,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:07:41,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:41,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:07:41,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:41,446 INFO L87 Difference]: Start difference. First operand 4431 states and 4725 transitions. Second operand 6 states. [2020-12-09 06:07:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:42,872 INFO L93 Difference]: Finished difference Result 8485 states and 9026 transitions. [2020-12-09 06:07:42,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:07:42,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1121 [2020-12-09 06:07:42,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:42,878 INFO L225 Difference]: With dead ends: 8485 [2020-12-09 06:07:42,878 INFO L226 Difference]: Without dead ends: 4253 [2020-12-09 06:07:42,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3360 GetRequests, 3347 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:42,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-12-09 06:07:42,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-12-09 06:07:42,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-12-09 06:07:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 4491 transitions. [2020-12-09 06:07:42,920 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 4491 transitions. Word has length 1121 [2020-12-09 06:07:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:42,920 INFO L481 AbstractCegarLoop]: Abstraction has 4253 states and 4491 transitions. [2020-12-09 06:07:42,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:07:42,920 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 4491 transitions. [2020-12-09 06:07:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2020-12-09 06:07:42,929 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:42,930 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, 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, 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, 6, 6, 6, 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, 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 06:07:43,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3,21 cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:43,332 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:43,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1601119432, now seen corresponding path program 1 times [2020-12-09 06:07:43,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:43,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001335213] [2020-12-09 06:07:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:43,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:43,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:43,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:45,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3912 backedges. 1282 proven. 2210 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-12-09 06:07:45,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3912 backedges. 2822 proven. 97 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-12-09 06:07:47,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001335213] [2020-12-09 06:07:47,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1256973434] [2020-12-09 06:07:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:07:47,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:47,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:07:47,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:49,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3912 backedges. 1331 proven. 0 refuted. 0 times theorem prover too weak. 2581 trivial. 0 not checked. [2020-12-09 06:07:49,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:49,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:07:49,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 5] total 14 [2020-12-09 06:07:49,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648867765] [2020-12-09 06:07:49,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:07:49,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:49,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:07:49,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:49,123 INFO L87 Difference]: Start difference. First operand 4253 states and 4491 transitions. Second operand 6 states. [2020-12-09 06:07:51,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:51,009 INFO L93 Difference]: Finished difference Result 8271 states and 8744 transitions. [2020-12-09 06:07:51,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:07:51,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1130 [2020-12-09 06:07:51,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:51,016 INFO L225 Difference]: With dead ends: 8271 [2020-12-09 06:07:51,016 INFO L226 Difference]: Without dead ends: 4253 [2020-12-09 06:07:51,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3387 GetRequests, 3374 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-12-09 06:07:51,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-12-09 06:07:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-12-09 06:07:51,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-12-09 06:07:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 4476 transitions. [2020-12-09 06:07:51,058 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 4476 transitions. Word has length 1130 [2020-12-09 06:07:51,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:51,059 INFO L481 AbstractCegarLoop]: Abstraction has 4253 states and 4476 transitions. [2020-12-09 06:07:51,059 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:07:51,059 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 4476 transitions. [2020-12-09 06:07:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1134 [2020-12-09 06:07:51,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:51,068 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, 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, 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, 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 06:07:51,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 cvc4 --incremental --print-success --lang smt,22 mathsat -unsat_core_generation=3 [2020-12-09 06:07:51,471 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:51,473 INFO L82 PathProgramCache]: Analyzing trace with hash -453397456, now seen corresponding path program 1 times [2020-12-09 06:07:51,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:51,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071725642] [2020-12-09 06:07:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-12-09 06:07:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:51,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:51,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:53,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 1285 proven. 2225 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-12-09 06:07:53,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:07:55,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 2837 proven. 100 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2020-12-09 06:07:55,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1071725642] [2020-12-09 06:07:55,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [849125894] [2020-12-09 06:07:55,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 25 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:07:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:55,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:07:55,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:07:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3930 backedges. 1307 proven. 0 refuted. 0 times theorem prover too weak. 2623 trivial. 0 not checked. [2020-12-09 06:07:56,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:07:56,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:07:56,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5] total 11 [2020-12-09 06:07:56,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005837555] [2020-12-09 06:07:56,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:07:56,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:07:56,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:07:56,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-12-09 06:07:56,865 INFO L87 Difference]: Start difference. First operand 4253 states and 4476 transitions. Second operand 3 states. [2020-12-09 06:07:57,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:07:57,908 INFO L93 Difference]: Finished difference Result 8170 states and 8613 transitions. [2020-12-09 06:07:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:07:57,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1133 [2020-12-09 06:07:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:07:57,915 INFO L225 Difference]: With dead ends: 8170 [2020-12-09 06:07:57,915 INFO L226 Difference]: Without dead ends: 4253 [2020-12-09 06:07:57,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3396 GetRequests, 3386 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-12-09 06:07:57,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4253 states. [2020-12-09 06:07:57,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4253 to 4253. [2020-12-09 06:07:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2020-12-09 06:07:57,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 4469 transitions. [2020-12-09 06:07:57,964 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 4469 transitions. Word has length 1133 [2020-12-09 06:07:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:07:57,965 INFO L481 AbstractCegarLoop]: Abstraction has 4253 states and 4469 transitions. [2020-12-09 06:07:57,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:07:57,965 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 4469 transitions. [2020-12-09 06:07:57,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1148 [2020-12-09 06:07:57,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:07:57,975 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 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, 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 06:07:58,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 cvc4 --incremental --print-success --lang smt,24 mathsat -unsat_core_generation=3 [2020-12-09 06:07:58,377 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:07:58,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:07:58,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1029444461, now seen corresponding path program 1 times [2020-12-09 06:07:58,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:07:58,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1567546582] [2020-12-09 06:07:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 26 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with mathsat -unsat_core_generation=3 [2020-12-09 06:07:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:07:58,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 06:07:58,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 3996 backedges. 794 proven. 3021 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2020-12-09 06:08:03,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:08:04,175 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 3, 1] term [2020-12-09 06:08:04,175 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:08:09,962 WARN L197 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 06:08:13,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3996 backedges. 3088 proven. 364 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-12-09 06:08:13,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1567546582] [2020-12-09 06:08:13,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1668434744] [2020-12-09 06:08:13,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 27 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:08:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:08:14,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:08:14,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:16,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3996 backedges. 1966 proven. 82 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 06:08:16,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:08:17,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3996 backedges. 1348 proven. 0 refuted. 0 times theorem prover too weak. 2648 trivial. 0 not checked. [2020-12-09 06:08:17,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:08:17,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14, 13, 6] total 30 [2020-12-09 06:08:17,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235682049] [2020-12-09 06:08:17,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:08:17,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:08:17,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:08:17,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2020-12-09 06:08:17,972 INFO L87 Difference]: Start difference. First operand 4253 states and 4469 transitions. Second operand 3 states. [2020-12-09 06:08:19,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:08:19,922 INFO L93 Difference]: Finished difference Result 8860 states and 9363 transitions. [2020-12-09 06:08:19,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:08:19,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1147 [2020-12-09 06:08:19,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:08:19,935 INFO L225 Difference]: With dead ends: 8860 [2020-12-09 06:08:19,935 INFO L226 Difference]: Without dead ends: 4965 [2020-12-09 06:08:19,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4584 GetRequests, 4517 SyntacticMatches, 39 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=234, Invalid=636, Unknown=0, NotChecked=0, Total=870 [2020-12-09 06:08:19,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4965 states. [2020-12-09 06:08:19,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4965 to 4965. [2020-12-09 06:08:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4965 states. [2020-12-09 06:08:19,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4965 states to 4965 states and 5210 transitions. [2020-12-09 06:08:19,979 INFO L78 Accepts]: Start accepts. Automaton has 4965 states and 5210 transitions. Word has length 1147 [2020-12-09 06:08:19,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:08:19,980 INFO L481 AbstractCegarLoop]: Abstraction has 4965 states and 5210 transitions. [2020-12-09 06:08:19,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:08:19,980 INFO L276 IsEmpty]: Start isEmpty. Operand 4965 states and 5210 transitions. [2020-12-09 06:08:19,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1157 [2020-12-09 06:08:19,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:08:19,990 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 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, 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 06:08:20,391 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 cvc4 --incremental --print-success --lang smt,26 mathsat -unsat_core_generation=3 [2020-12-09 06:08:20,392 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:08:20,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:08:20,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1737863161, now seen corresponding path program 1 times [2020-12-09 06:08:20,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:08:20,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801808039] [2020-12-09 06:08:20,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/mathsat Starting monitored process 28 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with mathsat -unsat_core_generation=3 [2020-12-09 06:08:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:08:20,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 06:08:20,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:21,822 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 06:08:21,822 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 06:08:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4023 backedges. 1498 proven. 2295 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-12-09 06:08:24,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:08:25,307 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 1] term [2020-12-09 06:08:25,307 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:08:28,509 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 06:08:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4023 backedges. 3244 proven. 186 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2020-12-09 06:08:31,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801808039] [2020-12-09 06:08:31,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [421147395] [2020-12-09 06:08:31,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/cvc4 Starting monitored process 29 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:08:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:08:31,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 06:08:31,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:34,164 INFO L134 CoverageAnalysis]: Checked inductivity of 4023 backedges. 2056 proven. 19 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2020-12-09 06:08:34,165 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:08:36,717 INFO L134 CoverageAnalysis]: Checked inductivity of 4023 backedges. 1357 proven. 0 refuted. 0 times theorem prover too weak. 2666 trivial. 0 not checked. [2020-12-09 06:08:36,717 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:08:36,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14, 13, 7] total 32 [2020-12-09 06:08:36,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203765139] [2020-12-09 06:08:36,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:08:36,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:08:36,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:08:36,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2020-12-09 06:08:36,720 INFO L87 Difference]: Start difference. First operand 4965 states and 5210 transitions. Second operand 4 states. [2020-12-09 06:08:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:08:38,452 INFO L93 Difference]: Finished difference Result 9750 states and 10247 transitions. [2020-12-09 06:08:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:08:38,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1156 [2020-12-09 06:08:38,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:08:38,458 INFO L225 Difference]: With dead ends: 9750 [2020-12-09 06:08:38,458 INFO L226 Difference]: Without dead ends: 5143 [2020-12-09 06:08:38,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4620 GetRequests, 4587 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=223, Invalid=769, Unknown=0, NotChecked=0, Total=992 [2020-12-09 06:08:38,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5143 states. [2020-12-09 06:08:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5143 to 4787. [2020-12-09 06:08:38,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4787 states. [2020-12-09 06:08:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4787 states to 4787 states and 5014 transitions. [2020-12-09 06:08:38,504 INFO L78 Accepts]: Start accepts. Automaton has 4787 states and 5014 transitions. Word has length 1156 [2020-12-09 06:08:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:08:38,505 INFO L481 AbstractCegarLoop]: Abstraction has 4787 states and 5014 transitions. [2020-12-09 06:08:38,505 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:08:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4787 states and 5014 transitions. [2020-12-09 06:08:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1210 [2020-12-09 06:08:38,516 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:08:38,516 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, 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, 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:08:38,917 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 cvc4 --incremental --print-success --lang smt,28 mathsat -unsat_core_generation=3 [2020-12-09 06:08:38,919 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:08:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:08:38,921 INFO L82 PathProgramCache]: Analyzing trace with hash -1145141966, now seen corresponding path program 1 times [2020-12-09 06:08:38,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:08:38,926 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516441930] [2020-12-09 06:08:38,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:08:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:08:39,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 06:08:39,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:40,337 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 06:08:40,337 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 06:08:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 1536 proven. 2397 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2020-12-09 06:08:43,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:08:43,982 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 1] term [2020-12-09 06:08:43,983 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:08:47,367 WARN L197 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 06:08:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 3282 proven. 288 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2020-12-09 06:08:50,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516441930] [2020-12-09 06:08:50,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1973017857] [2020-12-09 06:08:50,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/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 06:08:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:08:50,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 1323 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:08:50,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:08:52,154 INFO L134 CoverageAnalysis]: Checked inductivity of 4163 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 3723 trivial. 0 not checked. [2020-12-09 06:08:52,155 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:08:52,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:08:52,156 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14, 13] total 27 [2020-12-09 06:08:52,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138308757] [2020-12-09 06:08:52,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:08:52,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:08:52,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:08:52,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=544, Unknown=0, NotChecked=0, Total=702 [2020-12-09 06:08:52,157 INFO L87 Difference]: Start difference. First operand 4787 states and 5014 transitions. Second operand 4 states. [2020-12-09 06:08:54,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:08:54,917 INFO L93 Difference]: Finished difference Result 9399 states and 9873 transitions. [2020-12-09 06:08:54,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:08:54,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1209 [2020-12-09 06:08:54,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:08:54,918 INFO L225 Difference]: With dead ends: 9399 [2020-12-09 06:08:54,918 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:08:54,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3626 GetRequests, 3597 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=162, Invalid=594, Unknown=0, NotChecked=0, Total=756 [2020-12-09 06:08:54,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:08:54,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:08:54,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:08:54,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:08:54,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1209 [2020-12-09 06:08:54,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:08:54,923 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:08:54,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:08:54,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:08:54,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:08:55,325 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 06:08:55,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:08:55,495 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 126 [2020-12-09 06:08:55,925 WARN L197 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 59 [2020-12-09 06:08:56,256 WARN L197 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 59 [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 06:08:56,259 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 06:08:56,260 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 06:08:56,261 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 06:08:56,262 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 06:08:56,263 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 06:08:56,264 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 167) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 06:08:56,265 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 06:08:56,266 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 06:08:56,267 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:08:56,268 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a24~0))) (let ((.cse6 (= (_ bv6 32) ~a21~0)) (.cse12 (not (bvslt (_ bv80 32) ~a12~0))) (.cse11 (not (= (_ bv9 32) ~a15~0))) (.cse10 (not (= (_ bv2 32) ~a24~0))) (.cse9 (not (= (_ bv5 32) ~a15~0))) (.cse13 (not .cse0))) (let ((.cse3 (or .cse9 .cse13)) (.cse7 (or .cse9 .cse10)) (.cse5 (not (bvslt (_ bv11 32) ~a12~0))) (.cse1 (or .cse11 (not (= (_ bv10 32) ~a21~0)) .cse13)) (.cse8 (or (not (= (_ bv8 32) ~a15~0)) .cse12)) (.cse4 (or (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967295 32)))) (and (or .cse9 (not .cse6) .cse10) (or .cse11 .cse12)))) (.cse2 (not (bvsle ~a12~0 (_ bv4294967253 32))))) (or (and .cse0 .cse1 .cse2) (and .cse3 (= (_ bv8 32) ~a21~0)) (and .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse5) (and .cse7 (= (_ bv9 32) ~a21~0) .cse5) (and .cse8 .cse1 .cse2) (and .cse8 .cse4 .cse2))))) [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 06:08:56,269 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 06:08:56,270 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a24~0))) (let ((.cse6 (= (_ bv6 32) ~a21~0)) (.cse12 (not (bvslt (_ bv80 32) ~a12~0))) (.cse11 (not (= (_ bv9 32) ~a15~0))) (.cse10 (not (= (_ bv2 32) ~a24~0))) (.cse9 (not (= (_ bv5 32) ~a15~0))) (.cse13 (not .cse0))) (let ((.cse3 (or .cse9 .cse13)) (.cse7 (or .cse9 .cse10)) (.cse5 (not (bvslt (_ bv11 32) ~a12~0))) (.cse1 (or .cse11 (not (= (_ bv10 32) ~a21~0)) .cse13)) (.cse8 (or (not (= (_ bv8 32) ~a15~0)) .cse12)) (.cse4 (or (not (= (_ bv0 32) (bvadd ULTIMATE.start_calculate_output_~input (_ bv4294967295 32)))) (and (or .cse9 (not .cse6) .cse10) (or .cse11 .cse12)))) (.cse2 (not (bvsle ~a12~0 (_ bv4294967253 32))))) (or (and .cse0 .cse1 .cse2) (and .cse3 (= (_ bv8 32) ~a21~0)) (and .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse5) (and .cse7 (= (_ bv9 32) ~a21~0) .cse5) (and .cse8 .cse1 .cse2) (and .cse8 .cse4 .cse2))))) [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 06:08:56,271 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 06:08:56,272 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 06:08:56,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:08:56 BoogieIcfgContainer [2020-12-09 06:08:56,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:08:56,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:08:56,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:08:56,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:08:56,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:06:10" (3/4) ... [2020-12-09 06:08:56,290 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:08:56,307 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 06:08:56,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 06:08:56,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:08:56,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:08:56,398 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ccd746f8-8108-4b54-acb1-f4a1d6a4df77/bin/utaipan/witness.graphml [2020-12-09 06:08:56,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:08:56,399 INFO L168 Benchmark]: Toolchain (without parser) took 169128.86 ms. Allocated memory was 56.6 MB in the beginning and 1.0 GB in the end (delta: 947.9 MB). Free memory was 33.7 MB in the beginning and 754.6 MB in the end (delta: -720.9 MB). Peak memory consumption was 226.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,399 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:08:56,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.92 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.5 MB in the beginning and 33.8 MB in the end (delta: -261.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.83 ms. Allocated memory is still 69.2 MB. Free memory was 33.8 MB in the beginning and 45.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,400 INFO L168 Benchmark]: Boogie Preprocessor took 76.53 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 40.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,401 INFO L168 Benchmark]: RCFGBuilder took 2450.47 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 40.5 MB in the beginning and 45.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,401 INFO L168 Benchmark]: TraceAbstraction took 165837.21 ms. Allocated memory was 83.9 MB in the beginning and 1.0 GB in the end (delta: 920.6 MB). Free memory was 44.5 MB in the beginning and 773.4 MB in the end (delta: -728.9 MB). Peak memory consumption was 709.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,401 INFO L168 Benchmark]: Witness Printer took 110.91 ms. Allocated memory is still 1.0 GB. Free memory was 773.4 MB in the beginning and 754.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:08:56,403 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 56.6 MB. Free memory is still 39.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.92 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.5 MB in the beginning and 33.8 MB in the end (delta: -261.0 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.83 ms. Allocated memory is still 69.2 MB. Free memory was 33.8 MB in the beginning and 45.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.53 ms. Allocated memory is still 69.2 MB. Free memory was 45.7 MB in the beginning and 40.5 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2450.47 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 40.5 MB in the beginning and 45.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 165837.21 ms. Allocated memory was 83.9 MB in the beginning and 1.0 GB in the end (delta: 920.6 MB). Free memory was 44.5 MB in the beginning and 773.4 MB in the end (delta: -728.9 MB). Peak memory consumption was 709.3 MB. Max. memory is 16.1 GB. * Witness Printer took 110.91 ms. Allocated memory is still 1.0 GB. Free memory was 773.4 MB in the beginning and 754.6 MB in the end (delta: 18.9 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: 167]: 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: (((((((1bv32 == a24 && ((!(9bv32 == a15) || !(10bv32 == a21)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) || ((!(5bv32 == a15) || !(1bv32 == a24)) && 8bv32 == a21)) || (((!(0bv32 == ~bvadd64(input, 4294967295bv32)) || (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) && (!(9bv32 == a15) || !~bvslt32(80bv32, a12)))) && !~bvslt32(11bv32, a12)) && 6bv32 == a21)) || (((!(5bv32 == a15) || !(2bv32 == a24)) && (!(5bv32 == a15) || !(1bv32 == a24))) && !~bvslt32(11bv32, a12))) || (((!(5bv32 == a15) || !(2bv32 == a24)) && 9bv32 == a21) && !~bvslt32(11bv32, a12))) || (((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && ((!(9bv32 == a15) || !(10bv32 == a21)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32))) || (((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) && (!(9bv32 == a15) || !~bvslt32(80bv32, a12))))) && !~bvsle32(a12, 4294967253bv32)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((1bv32 == a24 && ((!(9bv32 == a15) || !(10bv32 == a21)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32)) || ((!(5bv32 == a15) || !(1bv32 == a24)) && 8bv32 == a21)) || (((!(0bv32 == ~bvadd64(input, 4294967295bv32)) || (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) && (!(9bv32 == a15) || !~bvslt32(80bv32, a12)))) && !~bvslt32(11bv32, a12)) && 6bv32 == a21)) || (((!(5bv32 == a15) || !(2bv32 == a24)) && (!(5bv32 == a15) || !(1bv32 == a24))) && !~bvslt32(11bv32, a12))) || (((!(5bv32 == a15) || !(2bv32 == a24)) && 9bv32 == a21) && !~bvslt32(11bv32, a12))) || (((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && ((!(9bv32 == a15) || !(10bv32 == a21)) || !(1bv32 == a24))) && !~bvsle32(a12, 4294967253bv32))) || (((!(8bv32 == a15) || !~bvslt32(80bv32, a12)) && (!(0bv32 == ~bvadd64(input, 4294967295bv32)) || (((!(5bv32 == a15) || !(6bv32 == a21)) || !(2bv32 == a24)) && (!(9bv32 == a15) || !~bvslt32(80bv32, a12))))) && !~bvsle32(a12, 4294967253bv32)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 164.8s, OverallIterations: 20, TraceHistogramMax: 10, AutomataDifference: 57.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2645 SDtfs, 2701 SDslu, 234 SDs, 0 SdLazy, 11785 SolverSat, 1431 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39204 GetRequests, 38923 SyntacticMatches, 90 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1006 ImplicationChecksByTransitivity, 26.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4965occurred in iteration=18, 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, 20 MinimizatonAttempts, 838 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 89 NumberOfFragments, 369 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8306 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2830 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.9s SsaConstructionTime, 7.5s SatisfiabilityAnalysisTime, 91.3s InterpolantComputationTime, 24307 NumberOfCodeBlocks, 24307 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 39198 ConstructedInterpolants, 0 QuantifiedInterpolants, 231570428 SizeOfPredicates, 77 NumberOfNonLiveVariables, 27050 ConjunctsInSsa, 202 ConjunctsInUnsatCore, 46 InterpolantComputations, 20 PerfectInterpolantSequences, 99929/121336 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...