./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-data/process_queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/heap-data/process_queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH --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 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 03:53:33,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 03:53:33,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 03:53:33,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 03:53:33,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 03:53:33,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 03:53:33,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 03:53:33,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 03:53:33,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 03:53:33,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 03:53:33,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 03:53:33,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 03:53:33,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 03:53:33,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 03:53:33,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 03:53:33,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 03:53:33,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 03:53:33,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 03:53:33,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 03:53:33,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 03:53:33,811 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 03:53:33,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 03:53:33,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 03:53:33,815 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 03:53:33,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 03:53:33,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 03:53:33,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 03:53:33,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 03:53:33,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 03:53:33,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 03:53:33,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 03:53:33,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 03:53:33,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 03:53:33,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 03:53:33,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 03:53:33,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 03:53:33,831 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 03:53:33,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 03:53:33,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 03:53:33,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 03:53:33,834 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 03:53:33,835 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 03:53:33,863 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 03:53:33,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 03:53:33,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 03:53:33,864 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 03:53:33,864 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 03:53:33,865 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 03:53:33,865 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 03:53:33,865 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 03:53:33,865 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 03:53:33,866 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 03:53:33,866 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 03:53:33,866 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 03:53:33,866 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 03:53:33,867 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 03:53:33,867 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 03:53:33,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 03:53:33,868 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 03:53:33,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 03:53:33,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 03:53:33,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 03:53:33,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 03:53:33,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 03:53:33,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 03:53:33,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 03:53:33,870 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 03:53:33,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 03:53:33,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 03:53:33,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 03:53:33,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 03:53:33,871 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 03:53:33,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:33,871 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 03:53:33,872 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 03:53:33,872 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 03:53:33,872 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 03:53:33,872 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 03:53:33,873 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 03:53:33,873 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 03:53:33,873 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 03:53:33,873 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ad9f94c1d10f7bc5f4235ca7c5dc51413b43a0e6c48b9e48da5d2e3e751252c [2021-11-03 03:53:34,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 03:53:34,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 03:53:34,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 03:53:34,155 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 03:53:34,156 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 03:53:34,157 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/heap-data/process_queue.i [2021-11-03 03:53:34,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/data/a6f2fa4ca/dab7f721d9184ec9848be76338b209b4/FLAG578103868 [2021-11-03 03:53:34,821 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 03:53:34,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/sv-benchmarks/c/heap-data/process_queue.i [2021-11-03 03:53:34,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/data/a6f2fa4ca/dab7f721d9184ec9848be76338b209b4/FLAG578103868 [2021-11-03 03:53:35,119 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/data/a6f2fa4ca/dab7f721d9184ec9848be76338b209b4 [2021-11-03 03:53:35,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 03:53:35,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 03:53:35,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:35,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 03:53:35,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 03:53:35,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69533cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35, skipping insertion in model container [2021-11-03 03:53:35,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 03:53:35,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 03:53:35,583 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/sv-benchmarks/c/heap-data/process_queue.i[23979,23992] [2021-11-03 03:53:35,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:35,598 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 03:53:35,633 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/sv-benchmarks/c/heap-data/process_queue.i[23979,23992] [2021-11-03 03:53:35,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 03:53:35,665 INFO L208 MainTranslator]: Completed translation [2021-11-03 03:53:35,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35 WrapperNode [2021-11-03 03:53:35,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 03:53:35,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:35,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 03:53:35,667 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 03:53:35,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 03:53:35,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 03:53:35,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 03:53:35,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 03:53:35,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 03:53:35,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 03:53:35,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 03:53:35,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 03:53:35,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (1/1) ... [2021-11-03 03:53:35,767 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 03:53:35,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:35,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 03:53:35,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 03:53:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 03:53:35,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 03:53:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 03:53:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 03:53:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 03:53:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 03:53:35,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 03:53:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 03:53:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 03:53:35,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 03:53:35,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 03:53:36,523 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 03:53:36,523 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2021-11-03 03:53:36,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:36 BoogieIcfgContainer [2021-11-03 03:53:36,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 03:53:36,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 03:53:36,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 03:53:36,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 03:53:36,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:53:35" (1/3) ... [2021-11-03 03:53:36,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c4425c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:36, skipping insertion in model container [2021-11-03 03:53:36,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:53:35" (2/3) ... [2021-11-03 03:53:36,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c4425c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:53:36, skipping insertion in model container [2021-11-03 03:53:36,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:53:36" (3/3) ... [2021-11-03 03:53:36,535 INFO L111 eAbstractionObserver]: Analyzing ICFG process_queue.i [2021-11-03 03:53:36,540 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 03:53:36,540 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 03:53:36,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 03:53:36,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 03:53:36,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 03:53:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:36,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 03:53:36,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:36,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:36,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:36,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:36,659 INFO L85 PathProgramCache]: Analyzing trace with hash 124092486, now seen corresponding path program 1 times [2021-11-03 03:53:36,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:36,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446878695] [2021-11-03 03:53:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:36,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:37,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:37,084 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:37,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446878695] [2021-11-03 03:53:37,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446878695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:37,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:37,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-03 03:53:37,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102151013] [2021-11-03 03:53:37,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 03:53:37,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:53:37,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 03:53:37,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-03 03:53:37,114 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:37,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:37,720 INFO L93 Difference]: Finished difference Result 84 states and 130 transitions. [2021-11-03 03:53:37,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:53:37,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 03:53:37,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:37,744 INFO L225 Difference]: With dead ends: 84 [2021-11-03 03:53:37,745 INFO L226 Difference]: Without dead ends: 63 [2021-11-03 03:53:37,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-03 03:53:37,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-11-03 03:53:37,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2021-11-03 03:53:37,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.5) internal successors, (60), 40 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 60 transitions. [2021-11-03 03:53:37,811 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 60 transitions. Word has length 8 [2021-11-03 03:53:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:37,812 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 60 transitions. [2021-11-03 03:53:37,813 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2021-11-03 03:53:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 03:53:37,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:37,824 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:37,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 03:53:37,825 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:37,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:37,834 INFO L85 PathProgramCache]: Analyzing trace with hash -364300988, now seen corresponding path program 1 times [2021-11-03 03:53:37,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:37,834 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541665972] [2021-11-03 03:53:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:37,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:37,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:37,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541665972] [2021-11-03 03:53:37,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541665972] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:37,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:37,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 03:53:37,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530045974] [2021-11-03 03:53:37,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:53:37,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:53:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:53:37,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:53:37,934 INFO L87 Difference]: Start difference. First operand 41 states and 60 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:38,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:38,142 INFO L93 Difference]: Finished difference Result 96 states and 141 transitions. [2021-11-03 03:53:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 03:53:38,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 03:53:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:38,144 INFO L225 Difference]: With dead ends: 96 [2021-11-03 03:53:38,144 INFO L226 Difference]: Without dead ends: 56 [2021-11-03 03:53:38,145 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:53:38,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-11-03 03:53:38,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 46. [2021-11-03 03:53:38,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4666666666666666) internal successors, (66), 45 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:38,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 66 transitions. [2021-11-03 03:53:38,155 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 66 transitions. Word has length 9 [2021-11-03 03:53:38,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:38,155 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 66 transitions. [2021-11-03 03:53:38,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:38,156 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2021-11-03 03:53:38,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:53:38,157 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:38,157 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:38,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 03:53:38,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:38,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1123679777, now seen corresponding path program 1 times [2021-11-03 03:53:38,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:38,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328024808] [2021-11-03 03:53:38,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:38,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:38,373 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:38,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328024808] [2021-11-03 03:53:38,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328024808] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:53:38,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346486461] [2021-11-03 03:53:38,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:38,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:38,377 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:53:38,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 03:53:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:38,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-03 03:53:38,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:38,625 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-03 03:53:38,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-03 03:53:39,375 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:39,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-11-03 03:53:39,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:39,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-11-03 03:53:39,737 INFO L354 Elim1Store]: treesize reduction 501, result has 16.6 percent of original size [2021-11-03 03:53:39,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 381 treesize of output 313 [2021-11-03 03:53:39,869 INFO L354 Elim1Store]: treesize reduction 44, result has 45.7 percent of original size [2021-11-03 03:53:39,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 361 treesize of output 387 [2021-11-03 03:53:39,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:39,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 363 [2021-11-03 03:53:39,982 INFO L354 Elim1Store]: treesize reduction 92, result has 14.0 percent of original size [2021-11-03 03:53:39,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 363 treesize of output 351 [2021-11-03 03:53:40,017 INFO L354 Elim1Store]: treesize reduction 43, result has 23.2 percent of original size [2021-11-03 03:53:40,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 341 treesize of output 310 [2021-11-03 03:53:40,021 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:53:40,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:40,120 INFO L354 Elim1Store]: treesize reduction 17, result has 45.2 percent of original size [2021-11-03 03:53:40,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 128 treesize of output 90 [2021-11-03 03:53:40,246 INFO L354 Elim1Store]: treesize reduction 27, result has 34.1 percent of original size [2021-11-03 03:53:40,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 69 [2021-11-03 03:53:40,436 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-03 03:53:40,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 40 [2021-11-03 03:53:40,444 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-03 03:53:40,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 19 [2021-11-03 03:53:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:40,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:40,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-11-03 03:53:40,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,577 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 176 [2021-11-03 03:53:40,581 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,583 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-03 03:53:40,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:40,592 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 182 [2021-11-03 03:53:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:42,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346486461] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 03:53:42,962 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1534321562] [2021-11-03 03:53:42,994 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-11-03 03:53:42,994 INFO L166 IcfgInterpreter]: Building call graph [2021-11-03 03:53:43,007 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-03 03:53:43,012 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-03 03:53:43,013 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-03 03:53:43,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,051 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-03 03:53:43,054 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,057 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-03 03:53:43,059 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-03 03:53:43,069 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 21=[|v_#valid_28|]} [2021-11-03 03:53:43,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-03 03:53:43,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:53:43,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-03 03:53:43,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-03 03:53:43,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:53:43,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:53:43,140 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,159 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-03 03:53:43,162 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,163 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-11-03 03:53:43,174 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,178 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-03 03:53:43,203 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 141 [2021-11-03 03:53:43,217 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,224 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 03:53:43,227 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,228 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,228 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,229 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,229 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:53:43,230 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:53:43,230 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,233 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-03 03:53:43,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 03:53:43,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,238 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,239 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,240 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:53:43,241 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 03:53:43,241 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 03:53:43,251 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,253 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-11-03 03:53:43,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 03:53:43,255 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,257 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,257 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,258 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-03 03:53:43,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:53:43,259 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,261 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,262 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-03 03:53:43,263 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-03 03:53:43,264 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,265 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-03 03:53:43,266 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,267 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,267 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:53:43,269 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,271 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,272 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:53:43,273 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 03:53:43,273 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,276 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,277 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-11-03 03:53:43,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-11-03 03:53:43,279 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,279 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,280 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-03 03:53:43,281 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-11-03 03:53:43,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,282 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-11-03 03:53:43,289 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 395 [2021-11-03 03:53:43,300 INFO L446 ElimStorePlain]: Different costs {6=[|v_#length_16|], 15=[|v_#valid_29|]} [2021-11-03 03:53:43,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,449 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-03 03:53:43,457 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-03 03:53:43,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 30 [2021-11-03 03:53:43,460 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:53:43,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,463 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-03 03:53:43,463 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,475 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-03 03:53:43,596 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-03 03:53:43,601 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,602 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-03 03:53:43,603 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,620 INFO L446 ElimStorePlain]: Different costs {2=[|v_#memory_int_8|, |v_#memory_$Pointer$.base_8|, |v_#memory_$Pointer$.offset_37|, |v_#memory_$Pointer$.offset_9|, |v_#memory_$Pointer$.base_37|], 10=[|v_#memory_$Pointer$.base_9|, |v_#memory_$Pointer$.offset_8|], 14=[|v_#memory_int_38|]} [2021-11-03 03:53:43,633 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,634 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:53:43,634 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,635 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,635 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:53:43,636 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-03 03:53:43,637 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,637 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,638 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-03 03:53:43,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-03 03:53:43,639 INFO L550 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-11-03 03:53:43,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,652 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 03:53:43,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 03:53:43,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:53:43,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,670 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:43,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-03 03:53:43,671 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-11-03 03:53:43,672 INFO L550 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-11-03 03:53:43,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-11-03 03:53:43,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,716 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-03 03:53:43,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-03 03:53:43,717 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-03 03:53:43,761 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,762 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-03 03:53:43,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-03 03:53:43,764 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 18 [2021-11-03 03:53:43,815 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,816 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:53:43,816 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,817 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-03 03:53:43,817 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 30 [2021-11-03 03:53:43,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,855 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 03:53:43,856 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,856 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-11-03 03:53:43,857 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,868 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 20 [2021-11-03 03:53:43,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:53:43,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-03 03:53:43,888 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 03:53:43,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 9 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 50 [2021-11-03 03:53:43,941 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-03 03:53:43,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-11-03 03:53:43,944 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:43,959 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,967 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,974 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-11-03 03:53:43,975 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-03 03:53:43,976 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 11 variables, input treesize:385, output treesize:205 [2021-11-03 03:53:43,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:43,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 255 [2021-11-03 03:53:44,012 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-11-03 03:53:44,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-03 03:53:44,144 INFO L180 QuantifierPusher]: treesize reduction 42, result has 69.1 percent of original size [2021-11-03 03:53:44,152 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 03:53:44,155 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,157 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,158 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,160 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,162 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,162 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,163 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-03 03:53:44,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:53:44,164 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,165 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,166 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:53:44,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,167 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,168 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,169 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,169 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-11-03 03:53:44,172 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-03 03:53:44,173 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,173 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,174 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-03 03:53:44,175 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-11-03 03:53:44,176 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-03 03:53:44,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:44,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-03 03:53:44,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 110 [2021-11-03 03:53:44,197 INFO L180 QuantifierPusher]: treesize reduction 43, result has 68.6 percent of original size [2021-11-03 03:53:44,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 03:53:44,208 INFO L180 QuantifierPusher]: treesize reduction 42, result has 69.1 percent of original size [2021-11-03 03:53:44,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 90 [2021-11-03 03:53:44,211 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-03 03:53:45,683 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 03:53:45,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-11-03 03:53:45,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2021-11-03 03:53:45,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212758281] [2021-11-03 03:53:45,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 03:53:45,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:53:45,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 03:53:45,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2021-11-03 03:53:45,686 INFO L87 Difference]: Start difference. First operand 46 states and 66 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:47,219 INFO L93 Difference]: Finished difference Result 138 states and 199 transitions. [2021-11-03 03:53:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 03:53:47,220 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 03:53:47,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:47,222 INFO L225 Difference]: With dead ends: 138 [2021-11-03 03:53:47,222 INFO L226 Difference]: Without dead ends: 106 [2021-11-03 03:53:47,223 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650 [2021-11-03 03:53:47,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-03 03:53:47,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 75. [2021-11-03 03:53:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.445945945945946) internal successors, (107), 74 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 107 transitions. [2021-11-03 03:53:47,237 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 107 transitions. Word has length 11 [2021-11-03 03:53:47,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:47,237 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 107 transitions. [2021-11-03 03:53:47,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2021-11-03 03:53:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-03 03:53:47,238 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:47,238 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:47,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 03:53:47,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:47,453 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:47,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:47,454 INFO L85 PathProgramCache]: Analyzing trace with hash 749890301, now seen corresponding path program 1 times [2021-11-03 03:53:47,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:47,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933674446] [2021-11-03 03:53:47,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:47,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 03:53:47,488 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:47,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933674446] [2021-11-03 03:53:47,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933674446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:47,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:47,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 03:53:47,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829988340] [2021-11-03 03:53:47,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 03:53:47,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:53:47,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 03:53:47,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 03:53:47,497 INFO L87 Difference]: Start difference. First operand 75 states and 107 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:47,526 INFO L93 Difference]: Finished difference Result 155 states and 220 transitions. [2021-11-03 03:53:47,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 03:53:47,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-03 03:53:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:47,528 INFO L225 Difference]: With dead ends: 155 [2021-11-03 03:53:47,528 INFO L226 Difference]: Without dead ends: 106 [2021-11-03 03:53:47,529 INFO L786 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 [2021-11-03 03:53:47,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-03 03:53:47,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2021-11-03 03:53:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3786407766990292) internal successors, (142), 103 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 142 transitions. [2021-11-03 03:53:47,557 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 142 transitions. Word has length 11 [2021-11-03 03:53:47,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:47,557 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 142 transitions. [2021-11-03 03:53:47,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,558 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 142 transitions. [2021-11-03 03:53:47,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 03:53:47,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:47,559 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-03 03:53:47,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-03 03:53:47,559 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:47,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash 2142460868, now seen corresponding path program 1 times [2021-11-03 03:53:47,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:47,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837703816] [2021-11-03 03:53:47,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:47,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:47,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 03:53:47,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:47,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837703816] [2021-11-03 03:53:47,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837703816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 03:53:47,602 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 03:53:47,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 03:53:47,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683777745] [2021-11-03 03:53:47,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 03:53:47,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 03:53:47,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 03:53:47,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 03:53:47,604 INFO L87 Difference]: Start difference. First operand 104 states and 142 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 03:53:47,736 INFO L93 Difference]: Finished difference Result 227 states and 311 transitions. [2021-11-03 03:53:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 03:53:47,739 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 03:53:47,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 03:53:47,741 INFO L225 Difference]: With dead ends: 227 [2021-11-03 03:53:47,741 INFO L226 Difference]: Without dead ends: 135 [2021-11-03 03:53:47,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 03:53:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-03 03:53:47,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 123. [2021-11-03 03:53:47,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 122 states have (on average 1.319672131147541) internal successors, (161), 122 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 161 transitions. [2021-11-03 03:53:47,759 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 161 transitions. Word has length 16 [2021-11-03 03:53:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 03:53:47,760 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 161 transitions. [2021-11-03 03:53:47,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 03:53:47,760 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 161 transitions. [2021-11-03 03:53:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 03:53:47,761 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 03:53:47,761 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2021-11-03 03:53:47,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-03 03:53:47,762 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 03:53:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 03:53:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1373031331, now seen corresponding path program 2 times [2021-11-03 03:53:47,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 03:53:47,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032235945] [2021-11-03 03:53:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 03:53:47,763 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 03:53:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 03:53:48,159 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 03:53:48,160 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 03:53:48,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032235945] [2021-11-03 03:53:48,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032235945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-03 03:53:48,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271416105] [2021-11-03 03:53:48,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 03:53:48,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 03:53:48,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 03:53:48,162 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 03:53:48,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f9fdf98-0106-469a-bcee-30cc8f85c98a/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 03:53:48,314 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 03:53:48,314 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 03:53:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-03 03:53:48,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 03:53:48,389 INFO L354 Elim1Store]: treesize reduction 83, result has 23.9 percent of original size [2021-11-03 03:53:48,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 31 [2021-11-03 03:53:48,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 132 [2021-11-03 03:53:48,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 143 [2021-11-03 03:53:48,980 INFO L354 Elim1Store]: treesize reduction 152, result has 25.9 percent of original size [2021-11-03 03:53:48,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 127 treesize of output 164 [2021-11-03 03:53:48,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 119 [2021-11-03 03:53:48,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 96 [2021-11-03 03:53:49,001 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:53:51,458 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-03 03:53:51,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 267 treesize of output 235 [2021-11-03 03:53:51,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 220 [2021-11-03 03:53:51,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 237 treesize of output 192 [2021-11-03 03:53:51,533 INFO L354 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2021-11-03 03:53:51,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 286 treesize of output 278 [2021-11-03 03:53:51,701 INFO L354 Elim1Store]: treesize reduction 108, result has 40.3 percent of original size [2021-11-03 03:53:51,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 251 treesize of output 299 [2021-11-03 03:53:51,725 INFO L883 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. [2021-11-03 03:53:51,749 INFO L354 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2021-11-03 03:53:51,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 284 treesize of output 260 [2021-11-03 03:53:51,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 233 [2021-11-03 03:53:51,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 193 [2021-11-03 03:53:51,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 178 [2021-11-03 03:53:52,885 INFO L354 Elim1Store]: treesize reduction 30, result has 9.1 percent of original size [2021-11-03 03:53:52,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 105 treesize of output 57 [2021-11-03 03:53:52,895 INFO L354 Elim1Store]: treesize reduction 18, result has 14.3 percent of original size [2021-11-03 03:53:52,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 38 [2021-11-03 03:53:52,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-03 03:53:52,920 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 03:53:52,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 03:53:53,023 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,024 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-11-03 03:53:53,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-03 03:53:53,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-11-03 03:53:53,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-11-03 03:53:53,042 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-03 03:53:53,047 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-03 03:53:53,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 781 [2021-11-03 03:53:53,748 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 03:53:53,750 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 885 [2021-11-03 03:53:54,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89360169705 treesize of output 89187678953