./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label16.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_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 f33fbcbeea92375203458d523a51a600f74086f3 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label16.c -s /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 f33fbcbeea92375203458d523a51a600f74086f3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:40:47,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:40:47,631 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:40:47,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:40:47,660 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:40:47,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:40:47,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:40:47,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:40:47,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:40:47,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:40:47,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:40:47,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:40:47,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:40:47,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:40:47,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:40:47,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:40:47,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:40:47,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:40:47,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:40:47,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:40:47,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:40:47,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:40:47,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:40:47,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:40:47,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:40:47,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:40:47,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:40:47,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:40:47,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:40:47,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:40:47,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:40:47,696 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:40:47,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:40:47,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:40:47,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:40:47,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:40:47,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:40:47,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:40:47,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:40:47,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:40:47,701 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:40:47,701 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 06:40:47,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:40:47,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:40:47,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:40:47,720 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:40:47,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:40:47,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:40:47,721 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:40:47,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:40:47,721 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:40:47,721 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:40:47,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:40:47,722 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:40:47,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:40:47,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:40:47,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:40:47,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:40:47,724 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_36869648-436a-40c0-bdcd-25e51610ba4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f33fbcbeea92375203458d523a51a600f74086f3 [2020-12-09 06:40:47,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:40:47,918 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:40:47,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:40:47,921 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:40:47,921 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:40:47,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-09 06:40:47,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/88d106fc8/dc7419cbe03d4e8297601f6957c9ab18/FLAG3f663b88e [2020-12-09 06:40:48,398 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:40:48,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-09 06:40:48,409 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/88d106fc8/dc7419cbe03d4e8297601f6957c9ab18/FLAG3f663b88e [2020-12-09 06:40:48,419 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/88d106fc8/dc7419cbe03d4e8297601f6957c9ab18 [2020-12-09 06:40:48,420 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:40:48,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:40:48,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:40:48,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:40:48,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:40:48,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:48,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5394be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48, skipping insertion in model container [2020-12-09 06:40:48,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:48,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:40:48,480 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:40:48,616 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_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c[4807,4820] [2020-12-09 06:40:48,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:40:48,780 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:40:48,803 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_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c[4807,4820] [2020-12-09 06:40:48,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:40:48,893 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:40:48,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48 WrapperNode [2020-12-09 06:40:48,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:40:48,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:40:48,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:40:48,895 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:40:48,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:48,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:48,990 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:40:48,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:40:48,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:40:48,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:40:48,997 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:48,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,001 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,021 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... [2020-12-09 06:40:49,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:40:49,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:40:49,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:40:49,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:40:49,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:40:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:40:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:40:49,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:40:49,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:41:00,107 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:41:00,107 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 06:41:00,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:00 BoogieIcfgContainer [2020-12-09 06:41:00,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:41:00,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:41:00,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:41:00,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:41:00,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:40:48" (1/3) ... [2020-12-09 06:41:00,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eaa4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:00, skipping insertion in model container [2020-12-09 06:41:00,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:48" (2/3) ... [2020-12-09 06:41:00,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51eaa4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:00, skipping insertion in model container [2020-12-09 06:41:00,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:00" (3/3) ... [2020-12-09 06:41:00,114 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2020-12-09 06:41:00,124 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:41:00,126 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:41:00,134 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:41:00,149 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:41:00,149 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:41:00,149 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:41:00,149 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:41:00,149 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:41:00,149 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:41:00,149 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:41:00,149 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:41:00,157 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 06:41:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 06:41:00,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:00,161 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 06:41:00,161 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:00,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:00,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1037749583, now seen corresponding path program 1 times [2020-12-09 06:41:00,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:41:00,171 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055321864] [2020-12-09 06:41:00,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:41:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:00,300 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 06:41:00,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055321864] [2020-12-09 06:41:00,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:00,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:41:00,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92918440] [2020-12-09 06:41:00,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:00,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:41:00,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:00,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:41:00,315 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 06:41:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:00,387 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 06:41:00,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:00,389 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 06:41:00,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:00,396 INFO L225 Difference]: With dead ends: 23 [2020-12-09 06:41:00,396 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 06:41:00,398 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 06:41:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 06:41:00,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 06:41:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 06:41:00,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 06:41:00,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 06:41:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:00,425 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 06:41:00,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 06:41:00,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:41:00,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:00,425 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 06:41:00,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:41:00,425 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:00,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:00,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1443845975, now seen corresponding path program 1 times [2020-12-09 06:41:00,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:41:00,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42080896] [2020-12-09 06:41:00,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:41:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:00,728 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 06:41:00,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42080896] [2020-12-09 06:41:00,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [704774913] [2020-12-09 06:41:00,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:00,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:41:00,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:01,051 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1339 DAG size of output: 83 [2020-12-09 06:41:01,116 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,119 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,120 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,123 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,124 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,127 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,128 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,133 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,134 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,136 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,139 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,141 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,147 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,148 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,149 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,150 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,152 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,156 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,158 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,162 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,163 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,164 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,168 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,171 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,180 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,181 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,182 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,185 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,188 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,190 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,195 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,196 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,200 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,204 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,205 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:41:01,206 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,207 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,211 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,216 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,218 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,219 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,223 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,227 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,228 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,228 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,229 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,230 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,231 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,232 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,233 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,239 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,242 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,243 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,244 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,248 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,249 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,255 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,256 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,256 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,257 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,258 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:41:01,263 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,265 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,266 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,267 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,271 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,278 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:41:01,279 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 06:41:01,279 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,280 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,281 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,282 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,284 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 06:41:01,286 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,289 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:41:01,289 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,290 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,292 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,295 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 06:41:01,296 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 06:41:01,296 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,297 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,300 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 06:41:01,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 06:41:01,304 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 06:41:01,304 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 06:41:01,306 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 06:41:01,315 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 14, 4, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,315 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 06:41:01,316 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,316 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,317 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,317 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,318 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,318 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,319 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-09 06:41:01,319 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,320 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,320 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,321 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,321 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,322 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,322 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,322 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 06:41:01,323 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,324 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 06:41:01,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,327 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,327 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,328 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,328 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,331 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,333 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,334 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,335 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,338 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,342 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,343 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,345 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,349 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,349 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,352 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,353 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,358 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,358 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,362 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,362 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,364 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,366 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,368 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 06:41:01,368 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,369 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,369 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,371 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,372 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 06:41:01,373 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,373 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,375 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,375 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,382 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 06:41:01,382 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,383 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,384 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,385 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,387 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,389 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,391 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,391 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,394 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,395 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,395 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,398 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,398 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,400 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,403 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 06:41:01,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,405 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,405 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,406 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,409 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,410 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,410 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,413 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,414 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,416 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,416 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,421 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,423 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,424 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,429 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,430 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 06:41:01,430 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,432 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,433 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,433 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,436 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,439 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,439 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,440 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,442 INFO L639 QuantifierPusher]: Distributing 18 conjuncts over 2 disjuncts [2020-12-09 06:41:01,443 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 06:41:01,444 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,446 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,448 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 06:41:01,448 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,451 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,451 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,453 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,453 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,455 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,458 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 06:41:01,459 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 06:41:01,460 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,460 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,462 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,463 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 06:41:01,464 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,465 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,466 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,466 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,468 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,468 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,471 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,471 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,474 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,475 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,476 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 06:41:01,477 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,477 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,479 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,480 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,481 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,482 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,483 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,485 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,485 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,487 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,489 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,489 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,491 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,492 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,493 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,495 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,497 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,497 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,499 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,501 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,501 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,503 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,504 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,504 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,505 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,508 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,508 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,510 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 06:41:01,511 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,514 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,516 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,516 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,519 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 3 disjuncts [2020-12-09 06:41:01,519 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 06:41:01,520 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,520 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,522 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,523 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 06:41:01,524 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,525 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,526 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,527 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,528 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,530 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,530 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,532 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,533 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,533 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,536 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 06:41:01,536 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,537 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,538 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,540 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,542 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,543 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 06:41:01,543 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,544 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,545 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,547 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,547 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,549 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,549 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,551 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,551 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,553 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,555 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 06:41:01,555 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,557 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,557 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,559 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,561 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,563 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,563 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,565 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,567 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,567 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,569 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,570 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 06:41:01,570 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,571 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,573 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,573 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,574 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,577 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,577 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,580 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 06:41:01,581 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,582 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:41:01,585 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,585 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,587 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 06:41:01,589 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 06:41:01,589 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,592 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:01,594 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,594 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,597 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 06:41:01,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,599 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 06:41:01,600 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,602 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,604 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,605 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,606 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,609 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 06:41:01,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,611 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,611 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,613 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,616 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,617 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,618 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,619 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,620 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,623 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,639 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,640 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,642 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,643 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,644 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 06:41:01,646 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,646 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,648 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 06:41:01,648 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,649 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 06:41:01,650 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,652 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,652 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,655 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,656 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:01,656 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:01,668 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 06:41:01,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:41:02,025 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 2658 DAG size of output: 2498 [2020-12-09 06:41:02,047 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 06:41:02,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1118407512] [2020-12-09 06:41:02,064 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 06:41:02,065 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:41:02,068 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:41:02,071 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:41:02,072 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:41:02,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 41 [2020-12-09 06:41:02,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 41 [2020-12-09 06:41:03,898 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 2481 DAG size of output: 2340 [2020-12-09 06:41:18,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 06:41:18,600 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 06:41:18,608 INFO L168 Benchmark]: Toolchain (without parser) took 30183.87 ms. Allocated memory was 98.6 MB in the beginning and 625.0 MB in the end (delta: 526.4 MB). Free memory was 56.4 MB in the beginning and 362.2 MB in the end (delta: -305.8 MB). Peak memory consumption was 468.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,609 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 74.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:41:18,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 471.50 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 49.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.00 ms. Allocated memory is still 98.6 MB. Free memory was 49.5 MB in the beginning and 71.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,610 INFO L168 Benchmark]: Boogie Preprocessor took 57.91 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 65.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,611 INFO L168 Benchmark]: RCFGBuilder took 11060.10 ms. Allocated memory was 98.6 MB in the beginning and 341.8 MB in the end (delta: 243.3 MB). Free memory was 65.2 MB in the beginning and 131.5 MB in the end (delta: -66.3 MB). Peak memory consumption was 255.1 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,612 INFO L168 Benchmark]: TraceAbstraction took 18494.91 ms. Allocated memory was 341.8 MB in the beginning and 625.0 MB in the end (delta: 283.1 MB). Free memory was 130.4 MB in the beginning and 362.2 MB in the end (delta: -231.8 MB). Peak memory consumption was 297.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:41:18,616 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 98.6 MB. Free memory was 74.7 MB in the beginning and 74.6 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 471.50 ms. Allocated memory is still 98.6 MB. Free memory was 56.1 MB in the beginning and 49.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.00 ms. Allocated memory is still 98.6 MB. Free memory was 49.5 MB in the beginning and 71.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.91 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 65.2 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11060.10 ms. Allocated memory was 98.6 MB in the beginning and 341.8 MB in the end (delta: 243.3 MB). Free memory was 65.2 MB in the beginning and 131.5 MB in the end (delta: -66.3 MB). Peak memory consumption was 255.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18494.91 ms. Allocated memory was 341.8 MB in the beginning and 625.0 MB in the end (delta: 283.1 MB). Free memory was 130.4 MB in the beginning and 362.2 MB in the end (delta: -231.8 MB). Peak memory consumption was 297.8 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 06:41:20,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:41:20,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:41:20,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:41:20,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:41:20,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:41:20,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:41:20,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:41:20,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:41:20,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:41:20,225 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:41:20,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:41:20,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:41:20,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:41:20,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:41:20,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:41:20,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:41:20,255 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:41:20,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:41:20,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:41:20,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:41:20,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:41:20,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:41:20,262 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:41:20,265 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:41:20,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:41:20,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:41:20,266 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:41:20,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:41:20,268 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:41:20,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:41:20,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:41:20,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:41:20,270 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:41:20,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:41:20,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:41:20,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:41:20,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:41:20,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:41:20,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:41:20,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:41:20,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 06:41:20,292 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:41:20,293 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:41:20,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:41:20,294 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:41:20,294 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:41:20,294 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:41:20,294 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:41:20,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:41:20,294 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:41:20,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:41:20,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:41:20,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 06:41:20,296 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:41:20,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 06:41:20,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:41:20,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:41:20,298 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:41:20,299 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:41:20,299 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_36869648-436a-40c0-bdcd-25e51610ba4e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f33fbcbeea92375203458d523a51a600f74086f3 [2020-12-09 06:41:20,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:41:20,545 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:41:20,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:41:20,548 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:41:20,549 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:41:20,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-09 06:41:20,593 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/3e896d99a/1d07e8175ca04bd2959f93a7c03b79d8/FLAG6d5979eeb [2020-12-09 06:41:21,032 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:41:21,032 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c [2020-12-09 06:41:21,043 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/3e896d99a/1d07e8175ca04bd2959f93a7c03b79d8/FLAG6d5979eeb [2020-12-09 06:41:21,056 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/data/3e896d99a/1d07e8175ca04bd2959f93a7c03b79d8 [2020-12-09 06:41:21,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:41:21,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:41:21,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:41:21,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:41:21,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:41:21,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d703237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21, skipping insertion in model container [2020-12-09 06:41:21,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:41:21,120 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:41:21,274 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_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c[4807,4820] [2020-12-09 06:41:21,421 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:41:21,429 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:41:21,447 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_36869648-436a-40c0-bdcd-25e51610ba4e/sv-benchmarks/c/eca-rers2012/Problem14_label16.c[4807,4820] [2020-12-09 06:41:21,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:41:21,539 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:41:21,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21 WrapperNode [2020-12-09 06:41:21,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:41:21,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:41:21,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:41:21,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:41:21,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:41:21,598 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:41:21,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:41:21,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:41:21,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,645 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... [2020-12-09 06:41:21,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:41:21,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:41:21,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:41:21,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:41:21,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 06:41:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:41:21,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:41:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:41:24,162 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:41:24,163 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 06:41:24,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:24 BoogieIcfgContainer [2020-12-09 06:41:24,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:41:24,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:41:24,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:41:24,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:41:24,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:41:21" (1/3) ... [2020-12-09 06:41:24,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5fcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:24, skipping insertion in model container [2020-12-09 06:41:24,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:41:21" (2/3) ... [2020-12-09 06:41:24,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d5fcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:41:24, skipping insertion in model container [2020-12-09 06:41:24,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:24" (3/3) ... [2020-12-09 06:41:24,171 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label16.c [2020-12-09 06:41:24,182 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:41:24,185 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 06:41:24,192 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 06:41:24,209 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:41:24,210 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:41:24,210 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:41:24,210 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:41:24,210 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:41:24,210 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:41:24,210 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:41:24,210 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:41:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 06:41:24,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-09 06:41:24,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:24,233 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] [2020-12-09 06:41:24,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:24,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:24,237 INFO L82 PathProgramCache]: Analyzing trace with hash 291089130, now seen corresponding path program 1 times [2020-12-09 06:41:24,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:24,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2066185855] [2020-12-09 06:41:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:24,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:41:24,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:24,400 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 06:41:24,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:41:24,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2066185855] [2020-12-09 06:41:24,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:24,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:41:24,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800726435] [2020-12-09 06:41:24,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:24,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:24,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:24,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:41:24,422 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 06:41:27,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:27,440 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 06:41:27,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:27,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-12-09 06:41:27,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:27,451 INFO L225 Difference]: With dead ends: 669 [2020-12-09 06:41:27,451 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 06:41:27,454 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 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 06:41:27,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 06:41:27,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 06:41:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 06:41:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 06:41:27,496 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 46 [2020-12-09 06:41:27,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:27,497 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 06:41:27,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 06:41:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-12-09 06:41:27,500 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:27,500 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, 1, 1, 1, 1, 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 06:41:27,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 06:41:27,702 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:27,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:27,705 INFO L82 PathProgramCache]: Analyzing trace with hash -518462119, now seen corresponding path program 1 times [2020-12-09 06:41:27,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:27,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351586904] [2020-12-09 06:41:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:27,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:41:27,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:41:27,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:41:27,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351586904] [2020-12-09 06:41:27,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:27,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:41:27,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786966350] [2020-12-09 06:41:27,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:27,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:27,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:27,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:41:27,929 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 06:41:31,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:31,181 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 06:41:31,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:31,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-12-09 06:41:31,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:31,185 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 06:41:31,185 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 06:41:31,186 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 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 06:41:31,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 06:41:31,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 06:41:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 06:41:31,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 06:41:31,209 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 112 [2020-12-09 06:41:31,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:31,209 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 06:41:31,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:31,210 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 06:41:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-09 06:41:31,211 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:31,211 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, 1, 1, 1, 1, 1, 1, 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 06:41:31,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 06:41:31,413 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:31,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:31,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1951851956, now seen corresponding path program 1 times [2020-12-09 06:41:31,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:31,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439252051] [2020-12-09 06:41:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:31,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:41:31,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:41:31,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:41:31,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439252051] [2020-12-09 06:41:31,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:31,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:41:31,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417090021] [2020-12-09 06:41:31,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:31,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:31,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:31,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:41:31,587 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 06:41:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:34,373 INFO L93 Difference]: Finished difference Result 1964 states and 2655 transitions. [2020-12-09 06:41:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:34,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-12-09 06:41:34,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:34,380 INFO L225 Difference]: With dead ends: 1964 [2020-12-09 06:41:34,380 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 06:41:34,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 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 06:41:34,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 06:41:34,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-09 06:41:34,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 06:41:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1556 transitions. [2020-12-09 06:41:34,413 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1556 transitions. Word has length 114 [2020-12-09 06:41:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:34,414 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1556 transitions. [2020-12-09 06:41:34,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1556 transitions. [2020-12-09 06:41:34,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-12-09 06:41:34,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:34,419 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:41:34,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 06:41:34,623 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:34,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:34,625 INFO L82 PathProgramCache]: Analyzing trace with hash 102630666, now seen corresponding path program 1 times [2020-12-09 06:41:34,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:34,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1102850973] [2020-12-09 06:41:34,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:34,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:41:34,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:34,937 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-09 06:41:34,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:41:34,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1102850973] [2020-12-09 06:41:34,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:34,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:41:34,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571794958] [2020-12-09 06:41:34,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:41:34,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:34,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:41:34,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:41:34,940 INFO L87 Difference]: Start difference. First operand 1250 states and 1556 transitions. Second operand 4 states. [2020-12-09 06:41:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:37,436 INFO L93 Difference]: Finished difference Result 2171 states and 2741 transitions. [2020-12-09 06:41:37,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:41:37,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2020-12-09 06:41:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:37,441 INFO L225 Difference]: With dead ends: 2171 [2020-12-09 06:41:37,441 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 06:41:37,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 192 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 06:41:37,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 06:41:37,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 06:41:37,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 06:41:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1327 transitions. [2020-12-09 06:41:37,457 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1327 transitions. Word has length 195 [2020-12-09 06:41:37,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:37,457 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1327 transitions. [2020-12-09 06:41:37,457 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:41:37,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1327 transitions. [2020-12-09 06:41:37,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-12-09 06:41:37,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:37,461 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, 2, 2, 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] [2020-12-09 06:41:37,661 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 06:41:37,662 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:37,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:37,663 INFO L82 PathProgramCache]: Analyzing trace with hash 885278667, now seen corresponding path program 1 times [2020-12-09 06:41:37,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:37,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465026376] [2020-12-09 06:41:37,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 06:41:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:37,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:41:37,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-09 06:41:38,125 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:41:38,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465026376] [2020-12-09 06:41:38,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:41:38,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:41:38,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63711264] [2020-12-09 06:41:38,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:38,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:38,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:38,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:41:38,127 INFO L87 Difference]: Start difference. First operand 1072 states and 1327 transitions. Second operand 3 states. [2020-12-09 06:41:40,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:40,303 INFO L93 Difference]: Finished difference Result 1786 states and 2287 transitions. [2020-12-09 06:41:40,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:40,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-12-09 06:41:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:40,308 INFO L225 Difference]: With dead ends: 1786 [2020-12-09 06:41:40,308 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 06:41:40,309 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 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 06:41:40,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 06:41:40,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 06:41:40,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 06:41:40,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1321 transitions. [2020-12-09 06:41:40,324 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1321 transitions. Word has length 221 [2020-12-09 06:41:40,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:40,324 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1321 transitions. [2020-12-09 06:41:40,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:40,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1321 transitions. [2020-12-09 06:41:40,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2020-12-09 06:41:40,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:40,328 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:41:40,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 06:41:40,528 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:40,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:40,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1889841477, now seen corresponding path program 1 times [2020-12-09 06:41:40,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:40,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092746295] [2020-12-09 06:41:40,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:40,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:41:40,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 131 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 06:41:40,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:41:41,477 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 266 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 06:41:41,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092746295] [2020-12-09 06:41:41,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:41:41,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 06:41:41,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025608239] [2020-12-09 06:41:41,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:41,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:41,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:41,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:41:41,479 INFO L87 Difference]: Start difference. First operand 1072 states and 1321 transitions. Second operand 3 states. [2020-12-09 06:41:47,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:47,859 INFO L93 Difference]: Finished difference Result 2142 states and 2812 transitions. [2020-12-09 06:41:47,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:47,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 325 [2020-12-09 06:41:47,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:47,865 INFO L225 Difference]: With dead ends: 2142 [2020-12-09 06:41:47,865 INFO L226 Difference]: Without dead ends: 1428 [2020-12-09 06:41:47,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 644 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:41:47,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-09 06:41:47,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-09 06:41:47,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-09 06:41:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1767 transitions. [2020-12-09 06:41:47,883 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1767 transitions. Word has length 325 [2020-12-09 06:41:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:47,884 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1767 transitions. [2020-12-09 06:41:47,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1767 transitions. [2020-12-09 06:41:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-12-09 06:41:47,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:47,891 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:41:48,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 06:41:48,092 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:48,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:48,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1537841512, now seen corresponding path program 1 times [2020-12-09 06:41:48,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:48,101 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [197011246] [2020-12-09 06:41:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:48,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:48,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 06:41:48,287 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 408 proven. 159 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-12-09 06:41:48,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:41:49,425 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 567 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-12-09 06:41:49,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [197011246] [2020-12-09 06:41:49,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:41:49,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 06:41:49,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896932797] [2020-12-09 06:41:49,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:41:49,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:41:49,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:41:49,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:41:49,427 INFO L87 Difference]: Start difference. First operand 1428 states and 1767 transitions. Second operand 3 states. [2020-12-09 06:41:55,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:41:55,576 INFO L93 Difference]: Finished difference Result 3210 states and 4150 transitions. [2020-12-09 06:41:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:41:55,577 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2020-12-09 06:41:55,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:41:55,585 INFO L225 Difference]: With dead ends: 3210 [2020-12-09 06:41:55,585 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 06:41:55,586 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 866 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 06:41:55,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 06:41:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 06:41:55,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 06:41:55,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2666 transitions. [2020-12-09 06:41:55,613 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2666 transitions. Word has length 436 [2020-12-09 06:41:55,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:41:55,614 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2666 transitions. [2020-12-09 06:41:55,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:41:55,614 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2666 transitions. [2020-12-09 06:41:55,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2020-12-09 06:41:55,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:41:55,616 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:41:55,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 06:41:55,818 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:41:55,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:41:55,820 INFO L82 PathProgramCache]: Analyzing trace with hash 1867510464, now seen corresponding path program 1 times [2020-12-09 06:41:55,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:41:55,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894171402] [2020-12-09 06:41:55,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:41:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:56,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:41:56,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 367 proven. 277 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-12-09 06:41:56,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:41:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 615 proven. 29 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2020-12-09 06:41:58,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894171402] [2020-12-09 06:41:58,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [99019674] [2020-12-09 06:41:58,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:41:58,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:58,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 06:41:58,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:41:58,922 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:41:58,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:58,923 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:58,927 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:58,930 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:58,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:58,933 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:41:58,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:58,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:41:59,179 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 424 proven. 44 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 06:41:59,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:41:59,406 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 06:41:59,407 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 06:41:59,719 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 444 proven. 24 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 06:41:59,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235612742] [2020-12-09 06:41:59,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:41:59,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:41:59,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:41:59,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:42:00,409 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 324 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 06:42:00,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:42:00,876 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 324 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 06:42:00,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 06:42:00,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 7, 4, 4] total 18 [2020-12-09 06:42:00,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696402032] [2020-12-09 06:42:00,879 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 06:42:00,879 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:42:00,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 06:42:00,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2020-12-09 06:42:00,880 INFO L87 Difference]: Start difference. First operand 2140 states and 2666 transitions. Second operand 18 states. [2020-12-09 06:42:02,966 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 06:42:04,791 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 06:42:16,186 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 06:42:16,807 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 06:42:34,104 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 06:42:37,993 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-09 06:42:38,897 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-12-09 06:43:05,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:43:05,949 INFO L93 Difference]: Finished difference Result 5963 states and 7554 transitions. [2020-12-09 06:43:05,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 06:43:05,953 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 452 [2020-12-09 06:43:05,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:43:05,965 INFO L225 Difference]: With dead ends: 5963 [2020-12-09 06:43:05,965 INFO L226 Difference]: Without dead ends: 3922 [2020-12-09 06:43:05,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2723 GetRequests, 2693 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2020-12-09 06:43:05,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2020-12-09 06:43:06,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3564. [2020-12-09 06:43:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-09 06:43:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3861 transitions. [2020-12-09 06:43:06,034 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3861 transitions. Word has length 452 [2020-12-09 06:43:06,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:43:06,034 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3861 transitions. [2020-12-09 06:43:06,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 06:43:06,035 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3861 transitions. [2020-12-09 06:43:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2020-12-09 06:43:06,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:43:06,041 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:43:06,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:43:06,643 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:43:06,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:43:06,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1983408847, now seen corresponding path program 1 times [2020-12-09 06:43:06,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:43:06,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1704139622] [2020-12-09 06:43:06,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 06:43:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:06,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:43:06,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:09,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 219 proven. 898 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 06:43:09,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:43:10,468 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:43:10,468 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:43:13,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 849 proven. 268 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 06:43:13,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1704139622] [2020-12-09 06:43:13,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [257830647] [2020-12-09 06:43:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:43:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:13,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 781 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 06:43:13,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:14,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 219 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-09 06:43:14,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:43:14,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:43:14,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10, 10] total 20 [2020-12-09 06:43:14,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632688175] [2020-12-09 06:43:14,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:43:14,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:43:14,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:43:14,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-09 06:43:14,463 INFO L87 Difference]: Start difference. First operand 3564 states and 3861 transitions. Second operand 3 states. [2020-12-09 06:43:16,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:43:16,183 INFO L93 Difference]: Finished difference Result 7660 states and 8458 transitions. [2020-12-09 06:43:16,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:43:16,184 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 700 [2020-12-09 06:43:16,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:43:16,199 INFO L225 Difference]: With dead ends: 7660 [2020-12-09 06:43:16,199 INFO L226 Difference]: Without dead ends: 4810 [2020-12-09 06:43:16,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2097 GetRequests, 2065 SyntacticMatches, 14 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-09 06:43:16,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2020-12-09 06:43:16,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4810. [2020-12-09 06:43:16,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4810 states. [2020-12-09 06:43:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 5277 transitions. [2020-12-09 06:43:16,253 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 5277 transitions. Word has length 700 [2020-12-09 06:43:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:43:16,254 INFO L481 AbstractCegarLoop]: Abstraction has 4810 states and 5277 transitions. [2020-12-09 06:43:16,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:43:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 5277 transitions. [2020-12-09 06:43:16,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2020-12-09 06:43:16,259 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:43:16,259 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:43:16,660 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 06:43:16,662 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:43:16,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:43:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1397089740, now seen corresponding path program 1 times [2020-12-09 06:43:16,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:43:16,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [515993912] [2020-12-09 06:43:16,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:16,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:43:16,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:18,172 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-09 06:43:18,222 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 06:43:18,222 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 06:43:20,149 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1466 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:20,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:43:21,077 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:43:21,077 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:43:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 858 proven. 608 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:23,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [515993912] [2020-12-09 06:43:23,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [805670680] [2020-12-09 06:43:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2020-12-09 06:43:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:24,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:43:24,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:24,758 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 06:43:24,758 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:24,760 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 1464 trivial. 0 not checked. [2020-12-09 06:43:25,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:43:25,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:43:25,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11, 11] total 24 [2020-12-09 06:43:25,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653340334] [2020-12-09 06:43:25,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:43:25,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:43:25,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:43:25,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2020-12-09 06:43:25,111 INFO L87 Difference]: Start difference. First operand 4810 states and 5277 transitions. Second operand 6 states. [2020-12-09 06:43:28,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:43:28,481 INFO L93 Difference]: Finished difference Result 10191 states and 11299 transitions. [2020-12-09 06:43:28,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:43:28,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 770 [2020-12-09 06:43:28,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:43:28,501 INFO L225 Difference]: With dead ends: 10191 [2020-12-09 06:43:28,501 INFO L226 Difference]: Without dead ends: 5878 [2020-12-09 06:43:28,504 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2307 GetRequests, 2267 SyntacticMatches, 18 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2020-12-09 06:43:28,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2020-12-09 06:43:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5878. [2020-12-09 06:43:28,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5878 states. [2020-12-09 06:43:28,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5878 states to 5878 states and 6416 transitions. [2020-12-09 06:43:28,565 INFO L78 Accepts]: Start accepts. Automaton has 5878 states and 6416 transitions. Word has length 770 [2020-12-09 06:43:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:43:28,566 INFO L481 AbstractCegarLoop]: Abstraction has 5878 states and 6416 transitions. [2020-12-09 06:43:28,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:43:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 5878 states and 6416 transitions. [2020-12-09 06:43:28,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 783 [2020-12-09 06:43:28,571 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:43:28,571 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:43:28,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 06:43:28,973 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:43:28,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:43:28,975 INFO L82 PathProgramCache]: Analyzing trace with hash -2044608298, now seen corresponding path program 1 times [2020-12-09 06:43:28,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:43:28,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967298084] [2020-12-09 06:43:28,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:29,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:43:29,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:32,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 628 proven. 898 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:32,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:43:33,025 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:43:33,026 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:43:36,384 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 1258 proven. 268 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:36,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967298084] [2020-12-09 06:43:36,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [440944823] [2020-12-09 06:43:36,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:36,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:36,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:43:36,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:37,200 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:43:37,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:37,201 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:37,203 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:37,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:37,207 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:37,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:37,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:37,212 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:37,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1787 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2020-12-09 06:43:37,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:43:37,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:43:37,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10] total 23 [2020-12-09 06:43:37,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857846754] [2020-12-09 06:43:37,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:43:37,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:43:37,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:43:37,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2020-12-09 06:43:37,589 INFO L87 Difference]: Start difference. First operand 5878 states and 6416 transitions. Second operand 6 states. [2020-12-09 06:43:40,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:43:40,566 INFO L93 Difference]: Finished difference Result 13586 states and 14930 transitions. [2020-12-09 06:43:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:43:40,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 782 [2020-12-09 06:43:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:43:40,595 INFO L225 Difference]: With dead ends: 13586 [2020-12-09 06:43:40,595 INFO L226 Difference]: Without dead ends: 7124 [2020-12-09 06:43:40,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2343 GetRequests, 2307 SyntacticMatches, 15 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2020-12-09 06:43:40,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7124 states. [2020-12-09 06:43:40,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7124 to 6768. [2020-12-09 06:43:40,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6768 states. [2020-12-09 06:43:40,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 7305 transitions. [2020-12-09 06:43:40,666 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 7305 transitions. Word has length 782 [2020-12-09 06:43:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:43:40,667 INFO L481 AbstractCegarLoop]: Abstraction has 6768 states and 7305 transitions. [2020-12-09 06:43:40,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:43:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 7305 transitions. [2020-12-09 06:43:40,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2020-12-09 06:43:40,671 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:43:40,672 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:43:41,073 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 06:43:41,074 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:43:41,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:43:41,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1610701273, now seen corresponding path program 1 times [2020-12-09 06:43:41,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:43:41,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1845587267] [2020-12-09 06:43:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:41,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:43:41,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:44,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 658 proven. 898 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:44,077 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:43:45,103 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:43:45,104 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:43:48,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 1288 proven. 268 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:48,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1845587267] [2020-12-09 06:43:48,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [718431553] [2020-12-09 06:43:48,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:48,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 879 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 06:43:48,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:49,195 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 06:43:49,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:49,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:49,198 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:49,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:49,200 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 06:43:49,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:49,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:49,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 06:43:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2020-12-09 06:43:49,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:43:49,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:43:49,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 10] total 23 [2020-12-09 06:43:49,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527605550] [2020-12-09 06:43:49,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 06:43:49,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:43:49,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 06:43:49,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2020-12-09 06:43:49,555 INFO L87 Difference]: Start difference. First operand 6768 states and 7305 transitions. Second operand 6 states. [2020-12-09 06:43:52,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:43:52,504 INFO L93 Difference]: Finished difference Result 14294 states and 15583 transitions. [2020-12-09 06:43:52,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 06:43:52,505 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 788 [2020-12-09 06:43:52,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:43:52,515 INFO L225 Difference]: With dead ends: 14294 [2020-12-09 06:43:52,515 INFO L226 Difference]: Without dead ends: 7302 [2020-12-09 06:43:52,520 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2361 GetRequests, 2321 SyntacticMatches, 19 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2020-12-09 06:43:52,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2020-12-09 06:43:52,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 7302. [2020-12-09 06:43:52,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7302 states. [2020-12-09 06:43:52,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7811 transitions. [2020-12-09 06:43:52,588 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7811 transitions. Word has length 788 [2020-12-09 06:43:52,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:43:52,588 INFO L481 AbstractCegarLoop]: Abstraction has 7302 states and 7811 transitions. [2020-12-09 06:43:52,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 06:43:52,588 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7811 transitions. [2020-12-09 06:43:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 791 [2020-12-09 06:43:52,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:43:52,594 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:43:52,994 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 06:43:52,995 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:43:52,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:43:52,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1017836866, now seen corresponding path program 1 times [2020-12-09 06:43:53,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:43:53,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355107326] [2020-12-09 06:43:53,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:43:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:43:53,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:43:53,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:43:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1827 backedges. 668 proven. 898 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:43:55,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:43:56,982 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:43:56,982 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:44:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1827 backedges. 1298 proven. 268 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:44:00,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355107326] [2020-12-09 06:44:00,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1142921050] [2020-12-09 06:44:00,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:44:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:44:00,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:44:00,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:44:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1827 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-12-09 06:44:01,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:44:01,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:44:01,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 06:44:01,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585923318] [2020-12-09 06:44:01,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:44:01,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:44:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:44:01,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2020-12-09 06:44:01,361 INFO L87 Difference]: Start difference. First operand 7302 states and 7811 transitions. Second operand 4 states. [2020-12-09 06:44:04,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:44:04,345 INFO L93 Difference]: Finished difference Result 13911 states and 14956 transitions. [2020-12-09 06:44:04,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:44:04,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 790 [2020-12-09 06:44:04,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:44:04,354 INFO L225 Difference]: With dead ends: 13911 [2020-12-09 06:44:04,354 INFO L226 Difference]: Without dead ends: 7302 [2020-12-09 06:44:04,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2369 GetRequests, 2332 SyntacticMatches, 17 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2020-12-09 06:44:04,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7302 states. [2020-12-09 06:44:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7302 to 7302. [2020-12-09 06:44:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7302 states. [2020-12-09 06:44:04,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7302 states to 7302 states and 7796 transitions. [2020-12-09 06:44:04,427 INFO L78 Accepts]: Start accepts. Automaton has 7302 states and 7796 transitions. Word has length 790 [2020-12-09 06:44:04,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:44:04,427 INFO L481 AbstractCegarLoop]: Abstraction has 7302 states and 7796 transitions. [2020-12-09 06:44:04,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:44:04,427 INFO L276 IsEmpty]: Start isEmpty. Operand 7302 states and 7796 transitions. [2020-12-09 06:44:04,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2020-12-09 06:44:04,432 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:44:04,432 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:44:04,834 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 06:44:04,834 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 06:44:04,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:44:04,836 INFO L82 PathProgramCache]: Analyzing trace with hash -172807184, now seen corresponding path program 1 times [2020-12-09 06:44:04,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 06:44:04,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691899811] [2020-12-09 06:44:04,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:44:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:44:05,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 06:44:05,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:44:07,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1852 backedges. 693 proven. 898 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:44:07,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:44:08,787 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 06:44:08,787 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 06:44:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1852 backedges. 1323 proven. 268 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2020-12-09 06:44:12,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691899811] [2020-12-09 06:44:12,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1557886242] [2020-12-09 06:44:12,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/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 06:44:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:44:12,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 06:44:12,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:44:13,576 INFO L134 CoverageAnalysis]: Checked inductivity of 1852 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 1589 trivial. 0 not checked. [2020-12-09 06:44:13,577 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 06:44:13,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 06:44:13,578 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10, 10] total 21 [2020-12-09 06:44:13,578 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513015273] [2020-12-09 06:44:13,578 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:44:13,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 06:44:13,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:44:13,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2020-12-09 06:44:13,579 INFO L87 Difference]: Start difference. First operand 7302 states and 7796 transitions. Second operand 4 states. [2020-12-09 06:44:15,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:44:15,878 INFO L93 Difference]: Finished difference Result 14441 states and 15482 transitions. [2020-12-09 06:44:15,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 06:44:15,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 795 [2020-12-09 06:44:15,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:44:15,880 INFO L225 Difference]: With dead ends: 14441 [2020-12-09 06:44:15,880 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 06:44:15,887 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2384 GetRequests, 2345 SyntacticMatches, 19 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2020-12-09 06:44:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 06:44:15,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 06:44:15,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 06:44:15,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 06:44:15,887 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 795 [2020-12-09 06:44:15,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:44:15,888 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 06:44:15,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:44:15,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 06:44:15,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 06:44:16,288 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 06:44:16,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 06:44:16,456 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 48 [2020-12-09 06:44:16,711 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-12-09 06:44:16,935 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 06:44:16,938 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 06:44:16,939 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,940 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 06:44:16,941 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 06:44:16,942 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,943 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 06:44:16,944 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 152) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,945 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 06:44:16,946 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 06:44:16,947 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 06:44:16,948 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,949 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse1 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse2 (= (_ bv5 32) ~a15~0))) (or (and .cse0 (bvsge (_ bv80 32) ~a12~0) (not (bvsle ~a12~0 (_ bv4294967253 32))) .cse1) (and .cse2 (not (bvslt (_ bv11 32) ~a12~0)) (= (_ bv6 32) ~a21~0) .cse1) (and .cse0 (or (not .cse2) (not (= (_ bv8 32) ~a21~0)))))) [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 06:44:16,950 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,951 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse1 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0)))) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse2 (= (_ bv5 32) ~a15~0))) (or (and .cse0 (bvsge (_ bv80 32) ~a12~0) (not (bvsle ~a12~0 (_ bv4294967253 32))) .cse1) (and .cse2 (not (bvslt (_ bv11 32) ~a12~0)) (= (_ bv6 32) ~a21~0) .cse1) (and .cse0 (or (not .cse2) (not (= (_ bv8 32) ~a21~0)))))) [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 06:44:16,952 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 06:44:16,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:44:16 BoogieIcfgContainer [2020-12-09 06:44:16,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 06:44:16,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 06:44:16,965 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 06:44:16,965 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 06:44:16,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:41:24" (3/4) ... [2020-12-09 06:44:16,968 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 06:44:16,983 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 06:44:16,985 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 06:44:16,986 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:44:16,987 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 06:44:17,069 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_36869648-436a-40c0-bdcd-25e51610ba4e/bin/utaipan/witness.graphml [2020-12-09 06:44:17,070 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 06:44:17,070 INFO L168 Benchmark]: Toolchain (without parser) took 176010.22 ms. Allocated memory was 54.5 MB in the beginning and 671.1 MB in the end (delta: 616.6 MB). Free memory was 30.1 MB in the beginning and 316.5 MB in the end (delta: -286.4 MB). Peak memory consumption was 328.7 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,070 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.6 MB in the end (delta: 85.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 06:44:17,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 478.50 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 29.8 MB in the beginning and 76.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.00 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 70.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,071 INFO L168 Benchmark]: Boogie Preprocessor took 53.33 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 65.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,071 INFO L168 Benchmark]: RCFGBuilder took 2512.93 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.8 MB in the beginning and 68.9 MB in the end (delta: -4.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,072 INFO L168 Benchmark]: TraceAbstraction took 172798.74 ms. Allocated memory was 119.5 MB in the beginning and 671.1 MB in the end (delta: 551.6 MB). Free memory was 67.7 MB in the beginning and 335.3 MB in the end (delta: -267.6 MB). Peak memory consumption was 282.8 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,072 INFO L168 Benchmark]: Witness Printer took 104.28 ms. Allocated memory is still 671.1 MB. Free memory was 335.3 MB in the beginning and 316.5 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 06:44:17,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 36.6 MB in the end (delta: 85.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 478.50 ms. Allocated memory was 54.5 MB in the beginning and 98.6 MB in the end (delta: 44.0 MB). Free memory was 29.8 MB in the beginning and 76.8 MB in the end (delta: -47.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.00 ms. Allocated memory is still 98.6 MB. Free memory was 76.8 MB in the beginning and 70.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.33 ms. Allocated memory is still 98.6 MB. Free memory was 70.5 MB in the beginning and 65.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2512.93 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.8 MB in the beginning and 68.9 MB in the end (delta: -4.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 172798.74 ms. Allocated memory was 119.5 MB in the beginning and 671.1 MB in the end (delta: 551.6 MB). Free memory was 67.7 MB in the beginning and 335.3 MB in the end (delta: -267.6 MB). Peak memory consumption was 282.8 MB. Max. memory is 16.1 GB. * Witness Printer took 104.28 ms. Allocated memory is still 671.1 MB. Free memory was 335.3 MB in the beginning and 316.5 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: 152]: 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 && ~bvsge32(80bv32, a12)) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && (!(5bv32 == a15) || !(8bv32 == a21))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((1bv32 == a24 && ~bvsge32(80bv32, a12)) && !~bvsle32(a12, 4294967253bv32)) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) || (((5bv32 == a15 && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && (!(5bv32 == a15) || !(8bv32 == a21))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 172.0s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 107.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1811 SDtfs, 5446 SDslu, 212 SDs, 0 SdLazy, 14000 SolverSat, 2022 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18785 GetRequests, 18517 SyntacticMatches, 107 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 872 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7302occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 714 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 153 NumberOfFragments, 109 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6002 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 86 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 54.2s InterpolantComputationTime, 12055 NumberOfCodeBlocks, 12055 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 18764 ConstructedInterpolants, 0 QuantifiedInterpolants, 170656827 SizeOfPredicates, 87 NumberOfNonLiveVariables, 13710 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 33 InterpolantComputations, 13 PerfectInterpolantSequences, 29316/38176 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...