./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0220.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0220.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1080615baa8f6ab055f34c400ddd3cb1288c5bcfd5f3427bea182230e940eff7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:01,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:01,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:01,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:01,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:01,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:01,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:01,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:01,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:01,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:01,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:01,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:01,603 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:01,606 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:01,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:01,613 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:01,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:01,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:01,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:01,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:01,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:01,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:01,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:01,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:01,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:01,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:01,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:01,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:01,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:01,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:01,652 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:01,653 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:01,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:01,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:01,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:01,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:01,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:01,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:01,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:01,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:01,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:01,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-13 02:41:01,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:01,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:01,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:01,711 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:01,711 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:01,717 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:01,718 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:01,718 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-13 02:41:01,718 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:01,718 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:01,719 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-13 02:41:01,720 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-13 02:41:01,720 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:01,720 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-13 02:41:01,721 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-13 02:41:01,721 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-13 02:41:01,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:41:01,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:41:01,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:01,723 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:41:01,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:41:01,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:41:01,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:41:01,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:01,724 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:41:01,725 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:41:01,726 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:41:01,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:01,727 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:01,727 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:41:01,727 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:01,728 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:01,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:01,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:01,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:01,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:01,729 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-13 02:41:01,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 02:41:01,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:01,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:01,730 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_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1080615baa8f6ab055f34c400ddd3cb1288c5bcfd5f3427bea182230e940eff7 [2021-11-13 02:41:02,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:02,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:02,062 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:02,064 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:02,065 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:02,066 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/memsafety/test-0220.i [2021-11-13 02:41:02,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/709aceef5/d561de0eff314c469dcefa89bcadd289/FLAGb6376efca [2021-11-13 02:41:02,712 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:02,713 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/sv-benchmarks/c/memsafety/test-0220.i [2021-11-13 02:41:02,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/709aceef5/d561de0eff314c469dcefa89bcadd289/FLAGb6376efca [2021-11-13 02:41:02,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/709aceef5/d561de0eff314c469dcefa89bcadd289 [2021-11-13 02:41:02,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:02,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:02,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:02,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:02,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:03,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:02" (1/1) ... [2021-11-13 02:41:03,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d014bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03, skipping insertion in model container [2021-11-13 02:41:03,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:02" (1/1) ... [2021-11-13 02:41:03,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:03,077 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:03,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:03,527 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:41:03,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:03,654 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:41:03,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03 WrapperNode [2021-11-13 02:41:03,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:03,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:03,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:41:03,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:41:03,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:03,710 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:41:03,710 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:41:03,710 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:41:03,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:41:03,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:41:03,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:41:03,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:41:03,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (1/1) ... [2021-11-13 02:41:03,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:03,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:03,785 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:41:03,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:41:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-11-13 02:41:03,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-11-13 02:41:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:41:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:41:03,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:41:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:41:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:41:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:41:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 02:41:03,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:41:03,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:41:04,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:41:04,458 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 02:41:04,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04 BoogieIcfgContainer [2021-11-13 02:41:04,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:41:04,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:41:04,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:41:04,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:41:04,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:41:02" (1/3) ... [2021-11-13 02:41:04,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276f1a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:04, skipping insertion in model container [2021-11-13 02:41:04,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:03" (2/3) ... [2021-11-13 02:41:04,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276f1a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:04, skipping insertion in model container [2021-11-13 02:41:04,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04" (3/3) ... [2021-11-13 02:41:04,469 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0220.i [2021-11-13 02:41:04,480 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:41:04,480 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-13 02:41:04,540 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:41:04,549 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-13 02:41:04,549 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-13 02:41:04,567 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 41 states have (on average 2.341463414634146) internal successors, (96), 87 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:04,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-13 02:41:04,576 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:04,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-13 02:41:04,578 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:04,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:04,585 INFO L85 PathProgramCache]: Analyzing trace with hash 204439, now seen corresponding path program 1 times [2021-11-13 02:41:04,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:04,613 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637250066] [2021-11-13 02:41:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:04,614 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:04,746 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:04,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637250066] [2021-11-13 02:41:04,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637250066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:04,747 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:04,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-13 02:41:04,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48439810] [2021-11-13 02:41:04,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:04,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:41:04,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:04,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:41:04,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:04,784 INFO L87 Difference]: Start difference. First operand has 91 states, 41 states have (on average 2.341463414634146) internal successors, (96), 87 states have internal predecessors, (96), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-13 02:41:04,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:04,833 INFO L93 Difference]: Finished difference Result 91 states and 96 transitions. [2021-11-13 02:41:04,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:41:04,836 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-13 02:41:04,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:04,844 INFO L225 Difference]: With dead ends: 91 [2021-11-13 02:41:04,844 INFO L226 Difference]: Without dead ends: 90 [2021-11-13 02:41:04,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:04,850 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.55ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.51ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:04,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 14 Unknown, 0 Unchecked, 1.55ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 27.51ms Time] [2021-11-13 02:41:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-13 02:41:04,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-13 02:41:04,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 41 states have (on average 2.2195121951219514) internal successors, (91), 86 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:04,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 95 transitions. [2021-11-13 02:41:04,892 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 95 transitions. Word has length 3 [2021-11-13 02:41:04,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:04,893 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 95 transitions. [2021-11-13 02:41:04,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2021-11-13 02:41:04,894 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 95 transitions. [2021-11-13 02:41:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 02:41:04,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:04,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-13 02:41:04,895 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 02:41:04,895 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:04,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:04,896 INFO L85 PathProgramCache]: Analyzing trace with hash 194289498, now seen corresponding path program 1 times [2021-11-13 02:41:04,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:04,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127263412] [2021-11-13 02:41:04,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:04,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:04,917 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:04,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [404742705] [2021-11-13 02:41:04,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:04,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:04,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:04,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:04,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 02:41:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:05,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-13 02:41:05,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:05,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:05,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:05,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:05,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127263412] [2021-11-13 02:41:05,157 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:05,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404742705] [2021-11-13 02:41:05,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [404742705] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:05,163 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:05,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:41:05,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444800221] [2021-11-13 02:41:05,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:05,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:41:05,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:05,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:41:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:05,169 INFO L87 Difference]: Start difference. First operand 90 states and 95 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:05,303 INFO L93 Difference]: Finished difference Result 89 states and 94 transitions. [2021-11-13 02:41:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:05,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-13 02:41:05,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:05,306 INFO L225 Difference]: With dead ends: 89 [2021-11-13 02:41:05,306 INFO L226 Difference]: Without dead ends: 89 [2021-11-13 02:41:05,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:05,307 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 5 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.50ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:05,308 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 119 Invalid, 63 Unknown, 0 Unchecked, 4.75ms Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 103.50ms Time] [2021-11-13 02:41:05,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-13 02:41:05,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-13 02:41:05,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 41 states have (on average 2.1951219512195124) internal successors, (90), 85 states have internal predecessors, (90), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:05,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 94 transitions. [2021-11-13 02:41:05,320 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 94 transitions. Word has length 5 [2021-11-13 02:41:05,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:05,320 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 94 transitions. [2021-11-13 02:41:05,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:05,321 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 94 transitions. [2021-11-13 02:41:05,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 02:41:05,322 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:05,322 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 02:41:05,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:05,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:05,538 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:05,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:05,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1728007335, now seen corresponding path program 1 times [2021-11-13 02:41:05,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:05,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852551673] [2021-11-13 02:41:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:05,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:05,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:05,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878248361] [2021-11-13 02:41:05,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:05,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:05,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:05,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:05,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-13 02:41:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:05,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-13 02:41:05,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:05,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2021-11-13 02:41:05,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:05,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:05,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:05,869 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:05,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852551673] [2021-11-13 02:41:05,870 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:05,870 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878248361] [2021-11-13 02:41:05,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878248361] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:05,870 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:05,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-13 02:41:05,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422772045] [2021-11-13 02:41:05,871 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:05,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 02:41:05,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:05,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 02:41:05,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 02:41:05,872 INFO L87 Difference]: Start difference. First operand 89 states and 94 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:06,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:06,018 INFO L93 Difference]: Finished difference Result 88 states and 93 transitions. [2021-11-13 02:41:06,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:06,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 02:41:06,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:06,024 INFO L225 Difference]: With dead ends: 88 [2021-11-13 02:41:06,024 INFO L226 Difference]: Without dead ends: 88 [2021-11-13 02:41:06,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:06,028 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 6 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.75ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 39 IncrementalHoareTripleChecker+Unchecked, 93.95ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:06,030 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 175 Invalid, 94 Unknown, 0 Unchecked, 4.75ms Time], IncrementalHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 39 Unchecked, 93.95ms Time] [2021-11-13 02:41:06,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-13 02:41:06,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-13 02:41:06,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 41 states have (on average 2.1707317073170733) internal successors, (89), 84 states have internal predecessors, (89), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:06,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-11-13 02:41:06,048 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 6 [2021-11-13 02:41:06,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:06,049 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-11-13 02:41:06,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:06,049 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-11-13 02:41:06,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 02:41:06,050 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:06,051 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:06,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:06,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:06,278 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:06,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:06,279 INFO L85 PathProgramCache]: Analyzing trace with hash -566005971, now seen corresponding path program 1 times [2021-11-13 02:41:06,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:06,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089413799] [2021-11-13 02:41:06,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:06,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:06,311 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:06,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441197695] [2021-11-13 02:41:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:06,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:06,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:06,313 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:06,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-13 02:41:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:06,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-13 02:41:06,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:06,479 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:41:06,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-13 02:41:06,503 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:06,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:06,675 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-13 02:41:06,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 26 [2021-11-13 02:41:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:06,700 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:06,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089413799] [2021-11-13 02:41:06,700 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:06,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441197695] [2021-11-13 02:41:06,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441197695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:06,701 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:06,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:41:06,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893882374] [2021-11-13 02:41:06,701 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:06,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:41:06,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:06,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:41:06,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-13 02:41:06,704 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:06,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:06,817 INFO L93 Difference]: Finished difference Result 87 states and 92 transitions. [2021-11-13 02:41:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-13 02:41:06,818 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-11-13 02:41:06,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:06,819 INFO L225 Difference]: With dead ends: 87 [2021-11-13 02:41:06,819 INFO L226 Difference]: Without dead ends: 87 [2021-11-13 02:41:06,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:41:06,821 INFO L933 BasicCegarLoop]: 75 mSDtfsCounter, 6 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.38ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 194 IncrementalHoareTripleChecker+Unchecked, 82.11ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:06,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 388 Invalid, 265 Unknown, 0 Unchecked, 3.38ms Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 194 Unchecked, 82.11ms Time] [2021-11-13 02:41:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-13 02:41:06,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-13 02:41:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 41 states have (on average 2.1463414634146343) internal successors, (88), 83 states have internal predecessors, (88), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 92 transitions. [2021-11-13 02:41:06,835 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 92 transitions. Word has length 18 [2021-11-13 02:41:06,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:06,837 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 92 transitions. [2021-11-13 02:41:06,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:06,843 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 92 transitions. [2021-11-13 02:41:06,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-13 02:41:06,844 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:06,845 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:06,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:07,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:07,066 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:07,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:07,067 INFO L85 PathProgramCache]: Analyzing trace with hash -566005970, now seen corresponding path program 1 times [2021-11-13 02:41:07,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:07,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432046545] [2021-11-13 02:41:07,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:07,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:07,080 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:07,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2104494183] [2021-11-13 02:41:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:07,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:07,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:07,087 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:07,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-13 02:41:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:07,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-13 02:41:07,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:14,007 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:41:14,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 62 treesize of output 64 [2021-11-13 02:41:14,021 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:41:14,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2021-11-13 02:41:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:15,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:16,426 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:16,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2021-11-13 02:41:16,825 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 02:41:16,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 41 [2021-11-13 02:41:16,991 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:16,991 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:16,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432046545] [2021-11-13 02:41:16,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:16,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104494183] [2021-11-13 02:41:16,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104494183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:16,992 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:16,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2021-11-13 02:41:16,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412643021] [2021-11-13 02:41:16,993 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:16,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-13 02:41:16,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:16,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-13 02:41:16,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-11-13 02:41:16,996 INFO L87 Difference]: Start difference. First operand 87 states and 92 transitions. Second operand has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:19,919 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2021-11-13 02:41:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:41:19,920 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2021-11-13 02:41:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:19,921 INFO L225 Difference]: With dead ends: 94 [2021-11-13 02:41:19,922 INFO L226 Difference]: Without dead ends: 94 [2021-11-13 02:41:19,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2021-11-13 02:41:19,923 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 74 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 84.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.06ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 520 IncrementalHoareTripleChecker+Unchecked, 110.47ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:19,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 377 Invalid, 601 Unknown, 0 Unchecked, 4.06ms Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 520 Unchecked, 110.47ms Time] [2021-11-13 02:41:19,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-13 02:41:19,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-13 02:41:19,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 44 states have (on average 2.090909090909091) internal successors, (92), 86 states have internal predecessors, (92), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 02:41:19,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2021-11-13 02:41:19,940 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 18 [2021-11-13 02:41:19,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:19,940 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2021-11-13 02:41:19,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 12 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2021-11-13 02:41:19,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:41:19,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:19,941 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:19,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-13 02:41:20,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:20,142 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:20,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:20,142 INFO L85 PathProgramCache]: Analyzing trace with hash -382682369, now seen corresponding path program 1 times [2021-11-13 02:41:20,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:20,143 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249844122] [2021-11-13 02:41:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:20,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:20,155 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:20,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1222586327] [2021-11-13 02:41:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:20,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:20,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:20,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:20,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-13 02:41:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:20,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-13 02:41:20,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:20,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:41:20,579 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:41:20,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 39 [2021-11-13 02:41:20,587 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:41:20,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2021-11-13 02:41:20,683 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:41:20,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:21,082 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 02:41:21,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-11-13 02:41:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:41:21,176 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:21,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249844122] [2021-11-13 02:41:21,176 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:21,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222586327] [2021-11-13 02:41:21,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222586327] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:21,177 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:21,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:41:21,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359991594] [2021-11-13 02:41:21,178 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:21,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:41:21,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:21,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:41:21,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:41:21,180 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:21,506 INFO L93 Difference]: Finished difference Result 93 states and 102 transitions. [2021-11-13 02:41:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:41:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19 [2021-11-13 02:41:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:21,508 INFO L225 Difference]: With dead ends: 93 [2021-11-13 02:41:21,508 INFO L226 Difference]: Without dead ends: 93 [2021-11-13 02:41:21,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2021-11-13 02:41:21,510 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 82 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 123.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.63ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 354 IncrementalHoareTripleChecker+Unchecked, 153.68ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:21,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 273 Invalid, 475 Unknown, 0 Unchecked, 3.63ms Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 354 Unchecked, 153.68ms Time] [2021-11-13 02:41:21,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-13 02:41:21,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 86. [2021-11-13 02:41:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 41 states have (on average 2.1219512195121952) internal successors, (87), 82 states have internal predecessors, (87), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:21,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 91 transitions. [2021-11-13 02:41:21,522 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 91 transitions. Word has length 19 [2021-11-13 02:41:21,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:21,523 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 91 transitions. [2021-11-13 02:41:21,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:41:21,528 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 91 transitions. [2021-11-13 02:41:21,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:41:21,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:21,529 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:21,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:21,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-13 02:41:21,750 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:21,750 INFO L85 PathProgramCache]: Analyzing trace with hash -366311235, now seen corresponding path program 1 times [2021-11-13 02:41:21,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:21,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895564936] [2021-11-13 02:41:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:21,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:21,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:21,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245093600] [2021-11-13 02:41:21,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:21,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:21,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:21,764 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:21,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-13 02:41:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:21,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:41:21,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 02:41:21,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:21,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 02:41:21,923 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:21,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895564936] [2021-11-13 02:41:21,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:21,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245093600] [2021-11-13 02:41:21,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245093600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:21,924 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:21,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:41:21,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402238898] [2021-11-13 02:41:21,924 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:21,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:41:21,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:21,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:41:21,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:21,926 INFO L87 Difference]: Start difference. First operand 86 states and 91 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:41:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:22,015 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2021-11-13 02:41:22,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:22,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-11-13 02:41:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:22,021 INFO L225 Difference]: With dead ends: 108 [2021-11-13 02:41:22,021 INFO L226 Difference]: Without dead ends: 108 [2021-11-13 02:41:22,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:22,022 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 44 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 68.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.32ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 84.07ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:22,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 93 Invalid, 69 Unknown, 0 Unchecked, 1.32ms Time], IncrementalHoareTripleChecker [1 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 84.07ms Time] [2021-11-13 02:41:22,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-11-13 02:41:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 84. [2021-11-13 02:41:22,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 41 states have (on average 2.073170731707317) internal successors, (85), 80 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 89 transitions. [2021-11-13 02:41:22,029 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 89 transitions. Word has length 19 [2021-11-13 02:41:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:22,029 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 89 transitions. [2021-11-13 02:41:22,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:41:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 89 transitions. [2021-11-13 02:41:22,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 02:41:22,031 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:22,031 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:22,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:22,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:22,258 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:22,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:22,258 INFO L85 PathProgramCache]: Analyzing trace with hash -366311234, now seen corresponding path program 1 times [2021-11-13 02:41:22,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:22,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175099227] [2021-11-13 02:41:22,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:22,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:22,269 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:22,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020688892] [2021-11-13 02:41:22,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:22,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:22,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:22,270 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:22,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 02:41:22,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:22,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:41:22,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 02:41:22,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 02:41:22,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:22,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175099227] [2021-11-13 02:41:22,446 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:22,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020688892] [2021-11-13 02:41:22,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020688892] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:22,447 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:22,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:41:22,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282960453] [2021-11-13 02:41:22,448 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:22,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:41:22,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:22,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:41:22,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:22,449 INFO L87 Difference]: Start difference. First operand 84 states and 89 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:41:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:22,515 INFO L93 Difference]: Finished difference Result 86 states and 92 transitions. [2021-11-13 02:41:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:22,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2021-11-13 02:41:22,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:22,516 INFO L225 Difference]: With dead ends: 86 [2021-11-13 02:41:22,516 INFO L226 Difference]: Without dead ends: 86 [2021-11-13 02:41:22,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:22,517 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 74 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.34ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.59ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:22,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 63 Invalid, 46 Unknown, 0 Unchecked, 1.34ms Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 60.59ms Time] [2021-11-13 02:41:22,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-13 02:41:22,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 83. [2021-11-13 02:41:22,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 41 states have (on average 2.048780487804878) internal successors, (84), 79 states have internal predecessors, (84), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:22,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 88 transitions. [2021-11-13 02:41:22,523 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 88 transitions. Word has length 19 [2021-11-13 02:41:22,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:22,524 INFO L470 AbstractCegarLoop]: Abstraction has 83 states and 88 transitions. [2021-11-13 02:41:22,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:41:22,524 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 88 transitions. [2021-11-13 02:41:22,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 02:41:22,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:22,525 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:22,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:22,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:22,738 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:22,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:22,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1529258697, now seen corresponding path program 1 times [2021-11-13 02:41:22,738 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:22,739 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039231692] [2021-11-13 02:41:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:22,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:22,748 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:22,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [774814830] [2021-11-13 02:41:22,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:22,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:22,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:22,750 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:22,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-13 02:41:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:22,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-13 02:41:22,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:22,953 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:41:22,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-11-13 02:41:22,977 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:41:22,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2021-11-13 02:41:22,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:22,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:23,222 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-13 02:41:23,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2021-11-13 02:41:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:23,229 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:23,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039231692] [2021-11-13 02:41:23,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:23,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774814830] [2021-11-13 02:41:23,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774814830] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:23,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1342122394] [2021-11-13 02:41:23,250 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-13 02:41:23,250 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 02:41:23,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 02:41:23,260 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 02:41:23,261 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 02:41:23,296 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,297 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,299 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 02:41:23,299 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,301 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:23,303 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-13 02:41:23,312 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_141|], 21=[|v_#valid_159|]} [2021-11-13 02:41:23,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,323 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 [2021-11-13 02:41:23,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,325 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:23,325 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,326 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:23,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,351 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:23,373 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 [2021-11-13 02:41:23,374 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:23,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:23,377 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,392 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,393 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-13 02:41:23,395 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,395 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-11-13 02:41:23,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,434 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:23,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-11-13 02:41:23,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,441 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:23,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-13 02:41:23,444 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_142|], 1=[|v_#valid_160|]} [2021-11-13 02:41:23,448 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 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:41:23,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,450 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,461 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-13 02:41:23,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:23,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:23,473 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-13 02:41:23,485 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,485 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2021-11-13 02:41:23,494 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,496 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,499 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:23,510 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:23,515 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 150 [2021-11-13 02:41:23,525 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 02:41:23,525 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,527 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,529 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_15|, |v_old(#memory_$Pointer$.offset)_AFTER_CALL_15|], 2=[|v_old(#memory_int)_AFTER_CALL_15|]} [2021-11-13 02:41:23,529 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.base)_AFTER_CALL_15| vanished before elimination [2021-11-13 02:41:23,530 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.offset)_AFTER_CALL_15| vanished before elimination [2021-11-13 02:41:23,530 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_int)_AFTER_CALL_15| vanished before elimination [2021-11-13 02:41:23,530 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:144, output treesize:1 [2021-11-13 02:41:23,536 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:23,547 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,549 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:23,551 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,552 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:23,555 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,556 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,556 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,557 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:23,557 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,558 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:23,560 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-11-13 02:41:23,568 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-13 02:41:23,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,570 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,570 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,571 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:23,573 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,574 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.offset)_AFTER_CALL_16|, |v_old(#memory_$Pointer$.base)_AFTER_CALL_16|], 2=[|v_old(#memory_int)_AFTER_CALL_16|]} [2021-11-13 02:41:23,575 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.offset)_AFTER_CALL_16| vanished before elimination [2021-11-13 02:41:23,575 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_$Pointer$.base)_AFTER_CALL_16| vanished before elimination [2021-11-13 02:41:23,575 INFO L518 ElimStorePlain]: Eliminatee |v_old(#memory_int)_AFTER_CALL_16| vanished before elimination [2021-11-13 02:41:23,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:23,576 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:23,576 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:145, output treesize:1 [2021-11-13 02:41:23,579 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:23,590 INFO L197 IcfgInterpreter]: Interpreting procedure calloc_model with input of size 77 for LOIs [2021-11-13 02:41:23,597 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:23,600 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-11-13 02:41:23,610 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 02:41:24,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1342122394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:24,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:41:24,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 9] total 18 [2021-11-13 02:41:24,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520084327] [2021-11-13 02:41:24,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:24,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 02:41:24,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:24,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 02:41:24,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-11-13 02:41:24,710 INFO L87 Difference]: Start difference. First operand 83 states and 88 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:25,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:25,354 INFO L93 Difference]: Finished difference Result 89 states and 95 transitions. [2021-11-13 02:41:25,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:41:25,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2021-11-13 02:41:25,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:25,355 INFO L225 Difference]: With dead ends: 89 [2021-11-13 02:41:25,355 INFO L226 Difference]: Without dead ends: 89 [2021-11-13 02:41:25,356 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 33 SyntacticMatches, 9 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2021-11-13 02:41:25,356 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 2 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 556.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.17ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 630.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:25,357 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 163 Invalid, 370 Unknown, 0 Unchecked, 4.17ms Time], IncrementalHoareTripleChecker [0 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 630.20ms Time] [2021-11-13 02:41:25,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-13 02:41:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-13 02:41:25,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 46 states have (on average 1.934782608695652) internal successors, (89), 84 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 02:41:25,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 95 transitions. [2021-11-13 02:41:25,362 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 95 transitions. Word has length 20 [2021-11-13 02:41:25,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:25,362 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 95 transitions. [2021-11-13 02:41:25,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:25,362 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 95 transitions. [2021-11-13 02:41:25,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 02:41:25,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:25,363 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:25,401 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:25,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:25,582 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:25,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:25,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1371126496, now seen corresponding path program 1 times [2021-11-13 02:41:25,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:25,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705946074] [2021-11-13 02:41:25,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:25,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:25,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:25,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1331556137] [2021-11-13 02:41:25,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:25,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:25,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:25,592 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:25,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-13 02:41:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:25,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-13 02:41:25,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:25,808 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:41:25,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-13 02:41:25,851 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-13 02:41:25,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 26 [2021-11-13 02:41:25,908 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:25,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:26,396 INFO L354 Elim1Store]: treesize reduction 18, result has 28.0 percent of original size [2021-11-13 02:41:26,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 26 [2021-11-13 02:41:26,405 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:26,406 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:26,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705946074] [2021-11-13 02:41:26,406 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:26,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331556137] [2021-11-13 02:41:26,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331556137] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:26,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1265736981] [2021-11-13 02:41:26,410 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-13 02:41:26,410 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 02:41:26,411 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 02:41:26,411 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 02:41:26,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 02:41:26,427 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,427 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 02:41:26,429 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:26,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-13 02:41:26,437 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_155|], 21=[|v_#valid_177|]} [2021-11-13 02:41:26,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,448 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 [2021-11-13 02:41:26,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:26,450 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,450 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:26,450 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,498 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 [2021-11-13 02:41:26,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:26,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,504 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:26,504 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,519 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-13 02:41:26,521 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,521 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-11-13 02:41:26,528 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:26,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,538 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-11-13 02:41:26,539 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:26,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-13 02:41:26,544 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_156|], 1=[|v_#valid_178|]} [2021-11-13 02:41:26,548 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 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:41:26,548 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,549 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:26,549 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:26,550 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-13 02:41:26,559 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,559 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:26,560 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,561 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:26,561 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,563 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-13 02:41:26,565 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,565 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2021-11-13 02:41:26,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,572 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,573 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,573 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,573 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:26,575 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,575 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-11-13 02:41:26,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:26,622 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:26,623 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,624 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:26,624 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:26,638 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,639 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,640 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:26,658 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,660 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,663 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,666 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-13 02:41:26,666 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,667 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:116, output treesize:104 [2021-11-13 02:41:26,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,705 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,709 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,711 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,713 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,715 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,716 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,718 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,718 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,719 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:26,721 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-13 02:41:26,721 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-11-13 02:41:26,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-11-13 02:41:26,727 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,731 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,733 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,734 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:26,736 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,736 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,737 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 02:41:26,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-13 02:41:26,739 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-11-13 02:41:26,744 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-13 02:41:26,745 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,746 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,749 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,751 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,751 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,752 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:26,753 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-11-13 02:41:26,756 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,758 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,760 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-11-13 02:41:26,761 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-11-13 02:41:26,764 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,766 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,766 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,767 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,767 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:26,768 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,768 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,769 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,769 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,770 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:26,771 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,771 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:26,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,773 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,773 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:26,774 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,775 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 02:41:26,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-11-13 02:41:26,778 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:26,779 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-11-13 02:41:26,783 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 242 [2021-11-13 02:41:26,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:26,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,803 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,804 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:26,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:26,892 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 25 treesize of output 24 [2021-11-13 02:41:26,893 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,893 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:26,894 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:26,894 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:26,894 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:26,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:26,906 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:27,081 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 29 treesize of output 28 [2021-11-13 02:41:27,082 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:27,083 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-11-13 02:41:27,084 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:27,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,097 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,097 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:27,217 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 25 treesize of output 24 [2021-11-13 02:41:27,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,218 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:27,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:27,220 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:27,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,234 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,235 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,251 INFO L180 QuantifierPusher]: treesize reduction 34, result has 88.1 percent of original size [2021-11-13 02:41:27,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-11-13 02:41:27,254 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 02:41:27,254 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:310, output treesize:252 [2021-11-13 02:41:27,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,325 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,340 INFO L180 QuantifierPusher]: treesize reduction 12, result has 85.4 percent of original size [2021-11-13 02:41:27,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:27,343 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,344 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,344 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:27,346 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,347 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,347 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:27,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-13 02:41:27,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:27,355 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,355 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,356 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,357 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:27,363 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,363 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,364 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,364 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,367 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:27,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,373 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,373 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,374 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:27,374 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,377 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-13 02:41:27,379 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,379 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:69, output treesize:57 [2021-11-13 02:41:27,385 INFO L180 QuantifierPusher]: treesize reduction 13, result has 93.3 percent of original size [2021-11-13 02:41:27,392 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:27,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,394 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,395 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,396 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:27,397 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:27,427 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-13 02:41:27,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 22 [2021-11-13 02:41:27,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,430 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:27,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:27,431 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,437 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,437 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_19|, |v_old(#memory_$Pointer$.offset)_AFTER_CALL_19|], 2=[|v_old(#memory_int)_AFTER_CALL_19|]} [2021-11-13 02:41:27,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:27,444 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,446 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:27,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,459 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,463 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:27,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-13 02:41:27,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,473 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,477 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 02:41:27,480 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,480 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:120, output treesize:87 [2021-11-13 02:41:27,484 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:27,493 INFO L180 QuantifierPusher]: treesize reduction 13, result has 93.3 percent of original size [2021-11-13 02:41:27,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,495 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,496 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,497 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,499 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:27,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,502 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,503 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:27,506 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:27,533 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-13 02:41:27,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 22 [2021-11-13 02:41:27,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,536 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:27,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,537 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:27,537 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,543 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.offset)_AFTER_CALL_20|, |v_old(#memory_$Pointer$.base)_AFTER_CALL_20|], 2=[|v_old(#memory_int)_AFTER_CALL_20|]} [2021-11-13 02:41:27,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:27,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,551 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,551 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,551 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:27,563 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,563 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,564 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,564 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:27,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-13 02:41:27,576 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,578 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,578 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,578 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,584 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,585 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 02:41:27,585 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,586 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:120, output treesize:87 [2021-11-13 02:41:27,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,650 INFO L180 QuantifierPusher]: treesize reduction 39, result has 76.9 percent of original size [2021-11-13 02:41:27,654 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 118 [2021-11-13 02:41:27,665 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:27,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:27,673 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:27,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:27,683 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,686 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,686 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,693 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:27,694 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:27,695 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,695 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:27,704 INFO L180 QuantifierPusher]: treesize reduction 18, result has 91.5 percent of original size [2021-11-13 02:41:27,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-13 02:41:27,723 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:27,725 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:27,731 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:27,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:27,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,743 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,744 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,749 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,751 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:27,752 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:27,752 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,753 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:27,761 INFO L180 QuantifierPusher]: treesize reduction 18, result has 91.5 percent of original size [2021-11-13 02:41:27,771 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-13 02:41:27,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,859 INFO L180 QuantifierPusher]: treesize reduction 45, result has 80.9 percent of original size [2021-11-13 02:41:27,860 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,861 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,861 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,862 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,862 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,863 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-13 02:41:27,870 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.3 percent of original size 181 [2021-11-13 02:41:27,873 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_157|], 1=[|v_#valid_179|]} [2021-11-13 02:41:27,880 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:27,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:27,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:27,882 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,895 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-13 02:41:27,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:27,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:27,907 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,929 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,932 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-13 02:41:27,933 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,933 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:178, output treesize:171 [2021-11-13 02:41:27,940 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-13 02:41:27,941 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,942 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,943 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:27,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:27,944 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,945 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 02:41:27,945 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:27,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:27,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:41:27,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-13 02:41:27,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-13 02:41:27,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:27,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:27,980 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:27,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,993 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:27,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:27,993 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:27,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,007 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:28,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:28,017 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,018 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:28,018 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,031 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,034 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-13 02:41:28,039 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,040 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:217, output treesize:203 [2021-11-13 02:41:28,054 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:28,057 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,057 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,058 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:28,062 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:28,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:28,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:28,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:28,077 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,084 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:28,085 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:28,086 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,086 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:28,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:28,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,140 INFO L197 IcfgInterpreter]: Interpreting procedure calloc_model with input of size 104 for LOIs [2021-11-13 02:41:28,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,149 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,152 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,155 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,160 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-11-13 02:41:28,162 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-11-13 02:41:28,167 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,170 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,173 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-13 02:41:28,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-13 02:41:28,193 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,198 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,200 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,206 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,209 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-13 02:41:28,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 246 [2021-11-13 02:41:28,221 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,223 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,227 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-11-13 02:41:28,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-11-13 02:41:28,238 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 278 [2021-11-13 02:41:28,248 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 386 [2021-11-13 02:41:28,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,370 INFO L180 QuantifierPusher]: treesize reduction 54, result has 69.1 percent of original size [2021-11-13 02:41:28,375 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:28,377 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,377 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,378 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:28,378 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:28,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,379 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:28,380 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-13 02:41:28,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:28,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:28,392 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:28,393 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,398 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:28,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:28,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:28,407 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:28,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:28,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:28,423 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:28,428 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,430 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:28,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-13 02:41:28,431 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:28,432 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:120, output treesize:108 [2021-11-13 02:41:28,436 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 02:41:31,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:31,954 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-13 02:41:31,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 19 [2021-11-13 02:41:31,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628097522] [2021-11-13 02:41:31,955 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-13 02:41:31,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-13 02:41:31,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-13 02:41:31,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-13 02:41:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=953, Unknown=0, NotChecked=0, Total=1056 [2021-11-13 02:41:31,957 INFO L87 Difference]: Start difference. First operand 89 states and 95 transitions. Second operand has 20 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 02:41:32,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:32,315 INFO L93 Difference]: Finished difference Result 118 states and 126 transitions. [2021-11-13 02:41:32,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 02:41:32,316 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 21 [2021-11-13 02:41:32,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:32,317 INFO L225 Difference]: With dead ends: 118 [2021-11-13 02:41:32,317 INFO L226 Difference]: Without dead ends: 118 [2021-11-13 02:41:32,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=154, Invalid=1328, Unknown=0, NotChecked=0, Total=1482 [2021-11-13 02:41:32,320 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 68 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 172.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.10ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 312 IncrementalHoareTripleChecker+Unchecked, 225.80ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:32,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 574 Invalid, 650 Unknown, 0 Unchecked, 4.10ms Time], IncrementalHoareTripleChecker [8 Valid, 330 Invalid, 0 Unknown, 312 Unchecked, 225.80ms Time] [2021-11-13 02:41:32,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-13 02:41:32,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 95. [2021-11-13 02:41:32,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 51 states have (on average 1.8627450980392157) internal successors, (95), 89 states have internal predecessors, (95), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-13 02:41:32,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 103 transitions. [2021-11-13 02:41:32,325 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 103 transitions. Word has length 21 [2021-11-13 02:41:32,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:32,326 INFO L470 AbstractCegarLoop]: Abstraction has 95 states and 103 transitions. [2021-11-13 02:41:32,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 15 states have (on average 2.066666666666667) internal successors, (31), 15 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-13 02:41:32,328 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 103 transitions. [2021-11-13 02:41:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 02:41:32,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:32,329 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:32,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:32,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-13 02:41:32,550 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:32,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:32,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1371126497, now seen corresponding path program 1 times [2021-11-13 02:41:32,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-13 02:41:32,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463348492] [2021-11-13 02:41:32,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:32,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 02:41:32,559 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-13 02:41:32,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869807086] [2021-11-13 02:41:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:32,559 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:32,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:32,564 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:32,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-13 02:41:32,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:32,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-13 02:41:32,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:32,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-13 02:41:33,165 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-11-13 02:41:33,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 32 [2021-11-13 02:41:33,198 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-13 02:41:33,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2021-11-13 02:41:33,297 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-13 02:41:33,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2021-11-13 02:41:33,320 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-13 02:41:33,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 39 [2021-11-13 02:41:33,540 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:33,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:33,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-13 02:41:33,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463348492] [2021-11-13 02:41:33,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:33,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869807086] [2021-11-13 02:41:33,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_l2_insert_#t~malloc8#1.base_26|] [2021-11-13 02:41:33,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [687165391] [2021-11-13 02:41:33,812 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2021-11-13 02:41:33,812 INFO L166 IcfgInterpreter]: Building call graph [2021-11-13 02:41:33,813 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-13 02:41:33,813 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-13 02:41:33,813 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-13 02:41:33,818 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,819 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,819 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:33,820 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,826 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-13 02:41:33,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-11-13 02:41:33,830 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_169|], 21=[|v_#valid_190|]} [2021-11-13 02:41:33,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,843 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 [2021-11-13 02:41:33,843 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:33,844 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:33,845 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:33,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:33,878 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 [2021-11-13 02:41:33,879 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:33,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:33,883 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:33,886 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-13 02:41:33,889 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,889 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:133, output treesize:108 [2021-11-13 02:41:33,897 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:33,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-11-13 02:41:33,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:33,929 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-11-13 02:41:33,931 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_170|], 1=[|v_#valid_191|]} [2021-11-13 02:41:33,935 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 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:41:33,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:33,937 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,937 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:33,937 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,938 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:33,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-13 02:41:33,945 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:33,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,947 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:33,947 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:33,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,950 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,951 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-11-13 02:41:33,952 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:33,952 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:50, output treesize:43 [2021-11-13 02:41:33,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,956 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,956 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,957 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:33,958 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:33,960 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:33,960 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:33,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:33,963 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 104 [2021-11-13 02:41:34,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:34,080 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,081 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:34,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:34,082 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-13 02:41:34,197 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,198 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 02:41:34,198 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,199 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-11-13 02:41:34,199 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:34,263 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:34,264 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:34,265 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,269 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-13 02:41:34,271 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,272 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:101, output treesize:89 [2021-11-13 02:41:34,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,382 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,383 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,388 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,389 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:34,390 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,391 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 02:41:34,393 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-11-13 02:41:34,394 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,397 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 172 [2021-11-13 02:41:34,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 173 [2021-11-13 02:41:34,400 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,401 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,405 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,406 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,407 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,408 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,411 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-13 02:41:34,411 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,413 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-11-13 02:41:34,416 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-13 02:41:34,416 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,418 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,420 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,421 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,422 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,423 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,424 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,424 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,426 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-11-13 02:41:34,426 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,428 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,429 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-11-13 02:41:34,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-13 02:41:34,433 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,434 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,435 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,435 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,436 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,436 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,437 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-11-13 02:41:34,438 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,439 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,440 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:34,440 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,440 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,441 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,442 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,444 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 252 [2021-11-13 02:41:34,445 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-11-13 02:41:34,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-11-13 02:41:34,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:34,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:34,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:34,478 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:34,593 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 26 treesize of output 25 [2021-11-13 02:41:34,594 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,595 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,595 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-11-13 02:41:34,596 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:34,620 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,621 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,622 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,622 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:34,728 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 22 treesize of output 21 [2021-11-13 02:41:34,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,730 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-13 02:41:34,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-13 02:41:34,731 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:34,851 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 22 treesize of output 21 [2021-11-13 02:41:34,852 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,853 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-13 02:41:34,853 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-11-13 02:41:34,854 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:34,867 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,868 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,868 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,869 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,877 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,881 INFO L180 QuantifierPusher]: treesize reduction 34, result has 87.5 percent of original size [2021-11-13 02:41:34,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-11-13 02:41:34,884 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-13 02:41:34,884 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 3 variables, input treesize:297, output treesize:239 [2021-11-13 02:41:34,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,962 INFO L180 QuantifierPusher]: treesize reduction 12, result has 85.4 percent of original size [2021-11-13 02:41:34,964 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,965 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,965 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:34,966 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:34,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:34,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-13 02:41:34,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:34,974 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:34,975 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:34,975 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:34,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,983 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,985 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:34,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,990 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:34,990 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:34,992 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:34,993 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-13 02:41:34,993 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:34,993 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:69, output treesize:57 [2021-11-13 02:41:34,999 INFO L180 QuantifierPusher]: treesize reduction 13, result has 93.3 percent of original size [2021-11-13 02:41:35,001 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,001 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,004 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,004 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,004 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:35,008 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:35,010 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,011 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,013 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:35,039 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-13 02:41:35,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 22 [2021-11-13 02:41:35,040 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:35,043 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:35,043 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,049 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_25|, |v_old(#memory_$Pointer$.offset)_AFTER_CALL_25|], 2=[|v_old(#memory_int)_AFTER_CALL_25|]} [2021-11-13 02:41:35,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:35,055 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,056 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,056 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,057 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,060 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:35,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,090 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,090 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,094 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:35,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-13 02:41:35,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,103 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,110 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 02:41:35,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,111 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:120, output treesize:87 [2021-11-13 02:41:35,117 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:35,128 INFO L180 QuantifierPusher]: treesize reduction 13, result has 93.3 percent of original size [2021-11-13 02:41:35,129 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,129 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,132 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,132 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:35,138 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-11-13 02:41:35,140 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:35,167 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-13 02:41:35,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 16 treesize of output 22 [2021-11-13 02:41:35,168 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,170 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:35,171 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,171 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-11-13 02:41:35,171 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,176 INFO L446 ElimStorePlain]: Different costs {0=[|v_old(#memory_$Pointer$.base)_AFTER_CALL_26|, |v_old(#memory_$Pointer$.offset)_AFTER_CALL_26|], 2=[|v_old(#memory_int)_AFTER_CALL_26|]} [2021-11-13 02:41:35,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:35,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,184 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,184 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,184 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 7 treesize of output 3 [2021-11-13 02:41:35,195 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,196 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,197 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,197 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-13 02:41:35,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 7 [2021-11-13 02:41:35,208 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,214 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,214 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,214 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,218 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-13 02:41:35,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,221 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:120, output treesize:87 [2021-11-13 02:41:35,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,243 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,266 INFO L180 QuantifierPusher]: treesize reduction 39, result has 76.9 percent of original size [2021-11-13 02:41:35,270 INFO L185 QuantifierPusher]: treesize reduction 5, result has 95.9 percent of original size 118 [2021-11-13 02:41:35,281 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:35,282 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,283 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,283 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:35,289 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:35,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:35,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,302 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,302 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,302 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,306 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,308 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:35,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:35,310 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,310 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:35,321 INFO L180 QuantifierPusher]: treesize reduction 18, result has 91.5 percent of original size [2021-11-13 02:41:35,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-13 02:41:35,339 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:35,342 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,343 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:35,347 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:35,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:35,359 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,361 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,361 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,362 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,366 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,367 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:35,368 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:35,369 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,369 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:35,378 INFO L180 QuantifierPusher]: treesize reduction 18, result has 91.5 percent of original size [2021-11-13 02:41:35,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 135 [2021-11-13 02:41:35,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,466 INFO L180 QuantifierPusher]: treesize reduction 45, result has 80.9 percent of original size [2021-11-13 02:41:35,467 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-11-13 02:41:35,468 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,468 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,469 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:35,478 INFO L185 QuantifierPusher]: treesize reduction 5, result has 97.3 percent of original size 181 [2021-11-13 02:41:35,483 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_171|], 1=[|v_#valid_192|]} [2021-11-13 02:41:35,491 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 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:35,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:35,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,493 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:35,493 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 9 [2021-11-13 02:41:35,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:35,511 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,512 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-11-13 02:41:35,512 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,524 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-11-13 02:41:35,529 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,529 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:178, output treesize:171 [2021-11-13 02:41:35,538 INFO L180 QuantifierPusher]: treesize reduction 3, result has 98.7 percent of original size [2021-11-13 02:41:35,539 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,540 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,540 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,541 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:35,541 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:35,542 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-13 02:41:35,543 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,544 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-11-13 02:41:35,544 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,545 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-11-13 02:41:35,550 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-13 02:41:35,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:35,568 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,568 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,569 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,569 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,569 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,578 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-13 02:41:35,589 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,589 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,590 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,590 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-11-13 02:41:35,590 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-13 02:41:35,611 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,612 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,612 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,613 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,622 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,627 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,632 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-11-13 02:41:35,633 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,633 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 4 variables, input treesize:217, output treesize:203 [2021-11-13 02:41:35,648 INFO L180 QuantifierPusher]: treesize reduction 5, result has 97.1 percent of original size [2021-11-13 02:41:35,650 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-13 02:41:35,655 INFO L185 QuantifierPusher]: treesize reduction 6, result has 94.5 percent of original size 104 [2021-11-13 02:41:35,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-11-13 02:41:35,665 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,667 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-13 02:41:35,668 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,672 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,673 INFO L180 QuantifierPusher]: treesize reduction 6, result has 93.2 percent of original size [2021-11-13 02:41:35,674 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 82 [2021-11-13 02:41:35,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,675 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:108, output treesize:82 [2021-11-13 02:41:35,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-11-13 02:41:35,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,714 INFO L197 IcfgInterpreter]: Interpreting procedure calloc_model with input of size 104 for LOIs [2021-11-13 02:41:35,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,723 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,725 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,728 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,730 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-11-13 02:41:35,735 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-11-13 02:41:35,738 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,740 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,743 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-11-13 02:41:35,747 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-11-13 02:41:35,763 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,767 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,769 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,772 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,775 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,778 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-13 02:41:35,780 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 248 [2021-11-13 02:41:35,781 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,798 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,803 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,806 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-13 02:41:35,812 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-11-13 02:41:35,815 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,817 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,820 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 296 [2021-11-13 02:41:35,824 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 410 [2021-11-13 02:41:35,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,899 INFO L180 QuantifierPusher]: treesize reduction 54, result has 69.1 percent of original size [2021-11-13 02:41:35,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,901 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:35,901 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,902 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-11-13 02:41:35,902 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-13 02:41:35,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-13 02:41:35,905 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-13 02:41:35,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:35,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,915 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:35,915 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,916 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:35,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,919 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-13 02:41:35,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:35,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-11-13 02:41:35,928 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-13 02:41:35,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:35,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-13 02:41:35,940 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-13 02:41:35,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-13 02:41:35,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-11-13 02:41:35,946 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-13 02:41:35,946 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:120, output treesize:108 [2021-11-13 02:41:35,950 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-13 02:41:39,435 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-13 02:41:39,435 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:39,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 02:41:39,435 ERROR L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-11-13 02:41:39,435 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 02:41:39,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (45 of 46 remaining) [2021-11-13 02:41:39,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (44 of 46 remaining) [2021-11-13 02:41:39,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (43 of 46 remaining) [2021-11-13 02:41:39,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (42 of 46 remaining) [2021-11-13 02:41:39,441 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (41 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (40 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (39 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (38 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (37 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (36 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (35 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (34 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (33 of 46 remaining) [2021-11-13 02:41:39,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (32 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (31 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (30 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (29 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (28 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (27 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (26 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (25 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (24 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (23 of 46 remaining) [2021-11-13 02:41:39,443 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (22 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION (21 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION (20 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (19 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (18 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (17 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION (16 of 46 remaining) [2021-11-13 02:41:39,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION (15 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE (14 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE (13 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE (12 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION (11 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION (10 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE (9 of 46 remaining) [2021-11-13 02:41:39,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE (8 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE (7 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION (6 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION (5 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION (4 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION (3 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK (2 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (1 of 46 remaining) [2021-11-13 02:41:39,446 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (0 of 46 remaining) [2021-11-13 02:41:39,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:39,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:39,652 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:39,654 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:41:39,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:41:39 BoogieIcfgContainer [2021-11-13 02:41:39,671 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:41:39,671 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:41:39,672 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:41:39,672 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:41:39,672 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:04" (3/4) ... [2021-11-13 02:41:39,674 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 02:41:39,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:41:39,675 INFO L158 Benchmark]: Toolchain (without parser) took 36684.36ms. Allocated memory was 90.2MB in the beginning and 195.0MB in the end (delta: 104.9MB). Free memory was 51.7MB in the beginning and 160.5MB in the end (delta: -108.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:39,675 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 69.3MB in the beginning and 69.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:39,675 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.32ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 74.1MB in the end (delta: -22.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-13 02:41:39,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.25ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 72.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:41:39,676 INFO L158 Benchmark]: Boogie Preprocessor took 41.03ms. Allocated memory is still 111.1MB. Free memory was 72.0MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:41:39,676 INFO L158 Benchmark]: RCFGBuilder took 709.20ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 49.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-13 02:41:39,676 INFO L158 Benchmark]: TraceAbstraction took 35208.68ms. Allocated memory was 111.1MB in the beginning and 195.0MB in the end (delta: 83.9MB). Free memory was 49.0MB in the beginning and 160.5MB in the end (delta: -111.5MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2021-11-13 02:41:39,676 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 195.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:41:39,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory was 69.3MB in the beginning and 69.2MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.32ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.4MB in the beginning and 74.1MB in the end (delta: -22.7MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.25ms. Allocated memory is still 111.1MB. Free memory was 74.1MB in the beginning and 72.0MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.03ms. Allocated memory is still 111.1MB. Free memory was 72.0MB in the beginning and 70.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 709.20ms. Allocated memory is still 111.1MB. Free memory was 70.4MB in the beginning and 49.4MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 35208.68ms. Allocated memory was 111.1MB in the beginning and 195.0MB in the end (delta: 83.9MB). Free memory was 49.0MB in the beginning and 160.5MB in the end (delta: -111.5MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 195.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L687] static struct L1 *list; [L689] CALL l1_insert(&list) [L676] CALL, EXPR calloc_model(1U, sizeof *item) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L676] RET, EXPR calloc_model(1U, sizeof *item) [L676] struct L1 *item = calloc_model(1U, sizeof *item); [L677] COND TRUE !item [L680] CALL l2_insert(&item->l2) [L655] CALL, EXPR calloc_model(1U, sizeof *item) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L655] RET, EXPR calloc_model(1U, sizeof *item) [L655] struct L2 *item = calloc_model(1U, sizeof *item); [L656] COND TRUE !item [L658] item->proto = malloc(119U) [L659] EXPR item->proto [L659] COND TRUE !item->proto [L661] \read(**list) - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 35.1s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 361 SdHoareTripleChecker+Valid, 1571.88ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 2307 SdHoareTripleChecker+Invalid, 1292.92ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 1419 IncrementalHoareTripleChecker+Unchecked, 1703 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1215 IncrementalHoareTripleChecker+Invalid, 2647 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 661 mSDtfsCounter, 1215 mSolverCounterSat, 33.06ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 222 SyntacticMatches, 13 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 10.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=10, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 60 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 294 ConstructedInterpolants, 56 QuantifiedInterpolants, 2224 SizeOfPredicates, 63 NumberOfNonLiveVariables, 1676 ConjunctsInSsa, 200 ConjunctsInUnsatCore, 20 InterpolantComputations, 15 PerfectInterpolantSequences, 66/85 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 360.44ms, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 9, DAG_INTERPRETER_EARLY_EXITS: 2, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 162.07ms, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 57.53ms, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME: 80.74ms, TOOLS_QUANTIFIERELIM_APPLICATIONS: 15, TOOLS_QUANTIFIERELIM_TIME: 293.22ms, TOOLS_QUANTIFIERELIM_MAX_TIME: 102.64ms, FLUID_QUERY_TIME: 3.62ms, FLUID_QUERIES: 25, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.00ms, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.00ms, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.00ms, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.00ms, DOMAIN_ISBOTTOM_APPLICATIONS: 9, DOMAIN_ISBOTTOM_TIME: 14.50ms, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.00ms, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.00ms, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 50.96ms, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 50.92ms, PROCEDURE_GRAPH_BUILDER_TIME: 3.70ms, PATH_EXPR_TIME: 2.36ms, REGEX_TO_DAG_TIME: 3.28ms, DAG_COMPRESSION_TIME: 9.28ms, DAG_COMPRESSION_PROCESSED_NODES: 131, DAG_COMPRESSION_RETAINED_NODES: 42, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 02:41:39,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0220.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1080615baa8f6ab055f34c400ddd3cb1288c5bcfd5f3427bea182230e940eff7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 02:41:42,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 02:41:42,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 02:41:42,069 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 02:41:42,070 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 02:41:42,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 02:41:42,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 02:41:42,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 02:41:42,084 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 02:41:42,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 02:41:42,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 02:41:42,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 02:41:42,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 02:41:42,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 02:41:42,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 02:41:42,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 02:41:42,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 02:41:42,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 02:41:42,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 02:41:42,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 02:41:42,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 02:41:42,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 02:41:42,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 02:41:42,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 02:41:42,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 02:41:42,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 02:41:42,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 02:41:42,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 02:41:42,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 02:41:42,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 02:41:42,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 02:41:42,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 02:41:42,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 02:41:42,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 02:41:42,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 02:41:42,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 02:41:42,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 02:41:42,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 02:41:42,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 02:41:42,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 02:41:42,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 02:41:42,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-13 02:41:42,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 02:41:42,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 02:41:42,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 02:41:42,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 02:41:42,200 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-13 02:41:42,200 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-13 02:41:42,200 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-13 02:41:42,200 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-13 02:41:42,201 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-13 02:41:42,201 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-13 02:41:42,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 02:41:42,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 02:41:42,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 02:41:42,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 02:41:42,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 02:41:42,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 02:41:42,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 02:41:42,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 02:41:42,206 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 02:41:42,206 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 02:41:42,206 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-13 02:41:42,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 02:41:42,207 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-13 02:41:42,207 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-13 02:41:42,207 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-13 02:41:42,207 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 02:41:42,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 02:41:42,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 02:41:42,208 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 02:41:42,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 02:41:42,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:42,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 02:41:42,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 02:41:42,210 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-13 02:41:42,210 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:42,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 02:41:42,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-13 02:41:42,211 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1080615baa8f6ab055f34c400ddd3cb1288c5bcfd5f3427bea182230e940eff7 [2021-11-13 02:41:42,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 02:41:42,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 02:41:42,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 02:41:42,655 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 02:41:42,656 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 02:41:42,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/memsafety/test-0220.i [2021-11-13 02:41:42,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/6928ab5ea/ba55abf8ab1f4c58b827440cc684fc7f/FLAGaf4e19264 [2021-11-13 02:41:43,411 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 02:41:43,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/sv-benchmarks/c/memsafety/test-0220.i [2021-11-13 02:41:43,430 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/6928ab5ea/ba55abf8ab1f4c58b827440cc684fc7f/FLAGaf4e19264 [2021-11-13 02:41:43,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/data/6928ab5ea/ba55abf8ab1f4c58b827440cc684fc7f [2021-11-13 02:41:43,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 02:41:43,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 02:41:43,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:43,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 02:41:43,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 02:41:43,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:43" (1/1) ... [2021-11-13 02:41:43,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4825435b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:43, skipping insertion in model container [2021-11-13 02:41:43,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:41:43" (1/1) ... [2021-11-13 02:41:43,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 02:41:43,761 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 02:41:44,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:44,217 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 02:41:44,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 02:41:44,310 INFO L208 MainTranslator]: Completed translation [2021-11-13 02:41:44,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44 WrapperNode [2021-11-13 02:41:44,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 02:41:44,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:44,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 02:41:44,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 02:41:44,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 02:41:44,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 02:41:44,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 02:41:44,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 02:41:44,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 02:41:44,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 02:41:44,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 02:41:44,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 02:41:44,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (1/1) ... [2021-11-13 02:41:44,432 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 02:41:44,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:44,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 02:41:44,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 02:41:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure calloc_model [2021-11-13 02:41:44,511 INFO L138 BoogieDeclarations]: Found implementation of procedure calloc_model [2021-11-13 02:41:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 02:41:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 02:41:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 02:41:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 02:41:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 02:41:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 02:41:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-13 02:41:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 02:41:44,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 02:41:45,314 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 02:41:45,314 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-13 02:41:45,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:45 BoogieIcfgContainer [2021-11-13 02:41:45,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 02:41:45,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 02:41:45,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 02:41:45,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 02:41:45,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:41:43" (1/3) ... [2021-11-13 02:41:45,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce7ffba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:45, skipping insertion in model container [2021-11-13 02:41:45,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:41:44" (2/3) ... [2021-11-13 02:41:45,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ce7ffba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:41:45, skipping insertion in model container [2021-11-13 02:41:45,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:45" (3/3) ... [2021-11-13 02:41:45,325 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0220.i [2021-11-13 02:41:45,331 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 02:41:45,331 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 46 error locations. [2021-11-13 02:41:45,380 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 02:41:45,387 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-13 02:41:45,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2021-11-13 02:41:45,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 57 states have (on average 2.017543859649123) internal successors, (115), 103 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:45,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 02:41:45,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:45,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-13 02:41:45,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:45,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash 928008, now seen corresponding path program 1 times [2021-11-13 02:41:45,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:45,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669262438] [2021-11-13 02:41:45,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:45,439 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:45,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:45,448 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:45,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-13 02:41:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:45,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-13 02:41:45,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:45,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:45,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:45,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:45,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:45,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669262438] [2021-11-13 02:41:45,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669262438] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:45,607 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:45,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:41:45,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602793786] [2021-11-13 02:41:45,610 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:45,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-13 02:41:45,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:45,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-13 02:41:45,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:45,652 INFO L87 Difference]: Start difference. First operand has 107 states, 57 states have (on average 2.017543859649123) internal successors, (115), 103 states have internal predecessors, (115), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-13 02:41:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:45,674 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2021-11-13 02:41:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-13 02:41:45,676 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2021-11-13 02:41:45,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:45,690 INFO L225 Difference]: With dead ends: 107 [2021-11-13 02:41:45,690 INFO L226 Difference]: Without dead ends: 105 [2021-11-13 02:41:45,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-13 02:41:45,697 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.92ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:45,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 1.92ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-13 02:41:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-11-13 02:41:45,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-11-13 02:41:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 56 states have (on average 1.8928571428571428) internal successors, (106), 101 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2021-11-13 02:41:45,765 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 4 [2021-11-13 02:41:45,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:45,765 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2021-11-13 02:41:45,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-11-13 02:41:45,765 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2021-11-13 02:41:45,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 02:41:45,766 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:45,766 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-13 02:41:45,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:45,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:45,977 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting calloc_modelErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:45,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:45,981 INFO L85 PathProgramCache]: Analyzing trace with hash 889698825, now seen corresponding path program 1 times [2021-11-13 02:41:45,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:45,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1039567875] [2021-11-13 02:41:45,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:45,983 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:45,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:45,984 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:45,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-13 02:41:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:46,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-13 02:41:46,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:46,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:46,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:46,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:46,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:46,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:46,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1039567875] [2021-11-13 02:41:46,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1039567875] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:46,192 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:46,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:41:46,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384664724] [2021-11-13 02:41:46,192 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:46,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:41:46,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:46,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:41:46,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:46,195 INFO L87 Difference]: Start difference. First operand 105 states and 110 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:46,402 INFO L93 Difference]: Finished difference Result 104 states and 109 transitions. [2021-11-13 02:41:46,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:41:46,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-13 02:41:46,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:46,410 INFO L225 Difference]: With dead ends: 104 [2021-11-13 02:41:46,410 INFO L226 Difference]: Without dead ends: 104 [2021-11-13 02:41:46,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:41:46,412 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 7 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 161.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.09ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 191.10ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:46,413 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 159 Invalid, 51 Unknown, 0 Unchecked, 3.09ms Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 191.10ms Time] [2021-11-13 02:41:46,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-13 02:41:46,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-13 02:41:46,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 56 states have (on average 1.875) internal successors, (105), 100 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:46,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-11-13 02:41:46,423 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 6 [2021-11-13 02:41:46,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:46,423 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-11-13 02:41:46,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:46,424 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-11-13 02:41:46,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 02:41:46,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:46,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:46,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:46,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:46,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting calloc_modelErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:46,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:46,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1810859990, now seen corresponding path program 1 times [2021-11-13 02:41:46,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:46,626 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2070571438] [2021-11-13 02:41:46,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:46,627 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:46,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:46,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:46,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-13 02:41:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:46,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-13 02:41:46,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:46,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:46,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:46,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:46,956 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:46,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2070571438] [2021-11-13 02:41:46,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2070571438] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:41:46,958 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:41:46,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 2] imperfect sequences [] total 4 [2021-11-13 02:41:46,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673343220] [2021-11-13 02:41:46,959 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:46,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:46,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:46,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:46,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-13 02:41:46,961 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:47,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:47,459 INFO L93 Difference]: Finished difference Result 103 states and 108 transitions. [2021-11-13 02:41:47,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-13 02:41:47,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-13 02:41:47,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:47,461 INFO L225 Difference]: With dead ends: 103 [2021-11-13 02:41:47,462 INFO L226 Difference]: Without dead ends: 103 [2021-11-13 02:41:47,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-13 02:41:47,464 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 17 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 405.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 460.83ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:47,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 260 Invalid, 49 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 460.83ms Time] [2021-11-13 02:41:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-11-13 02:41:47,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-11-13 02:41:47,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 56 states have (on average 1.8571428571428572) internal successors, (104), 99 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2021-11-13 02:41:47,474 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 7 [2021-11-13 02:41:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:47,475 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2021-11-13 02:41:47,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 02:41:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2021-11-13 02:41:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 02:41:47,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:47,477 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:47,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:47,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:47,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:47,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:47,689 INFO L85 PathProgramCache]: Analyzing trace with hash 994596048, now seen corresponding path program 1 times [2021-11-13 02:41:47,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:47,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2021049567] [2021-11-13 02:41:47,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:47,690 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:47,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:47,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:47,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-13 02:41:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:47,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-13 02:41:47,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:48,260 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 02:41:48,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:48,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:48,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2021049567] [2021-11-13 02:41:48,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2021049567] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-13 02:41:48,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-13 02:41:48,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2021-11-13 02:41:48,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578490524] [2021-11-13 02:41:48,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 02:41:48,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 02:41:48,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:48,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 02:41:48,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-13 02:41:48,694 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:49,002 INFO L93 Difference]: Finished difference Result 107 states and 112 transitions. [2021-11-13 02:41:49,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 02:41:49,006 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2021-11-13 02:41:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:49,007 INFO L225 Difference]: With dead ends: 107 [2021-11-13 02:41:49,007 INFO L226 Difference]: Without dead ends: 104 [2021-11-13 02:41:49,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2021-11-13 02:41:49,009 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 8 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 155.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 178.42ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:49,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 400 Invalid, 26 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 178.42ms Time] [2021-11-13 02:41:49,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-13 02:41:49,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-13 02:41:49,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 57 states have (on average 1.8421052631578947) internal successors, (105), 100 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 109 transitions. [2021-11-13 02:41:49,021 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 109 transitions. Word has length 26 [2021-11-13 02:41:49,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:49,021 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 109 transitions. [2021-11-13 02:41:49,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 109 transitions. [2021-11-13 02:41:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-13 02:41:49,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:49,023 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:49,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:49,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:41:49,236 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:49,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:49,237 INFO L85 PathProgramCache]: Analyzing trace with hash -207095898, now seen corresponding path program 1 times [2021-11-13 02:41:49,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:49,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292361431] [2021-11-13 02:41:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:49,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:49,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:49,247 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:49,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-13 02:41:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:49,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:41:49,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:49,885 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:49,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:50,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:41:50,348 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:41:50,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292361431] [2021-11-13 02:41:50,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1292361431] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:50,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [766584299] [2021-11-13 02:41:50,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:50,349 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:50,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:41:50,350 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:41:50,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-13 02:41:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:50,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:41:50,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:50,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:50,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:41:51,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [766584299] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:51,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819311084] [2021-11-13 02:41:51,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:41:51,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:41:51,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:41:51,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:41:51,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-13 02:41:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:41:51,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:41:51,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-13 02:41:51,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:41:51,782 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 02:41:51,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819311084] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:41:51,783 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:41:51,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 10 [2021-11-13 02:41:51,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685251834] [2021-11-13 02:41:51,784 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:41:51,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-13 02:41:51,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:41:51,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-13 02:41:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-13 02:41:51,786 INFO L87 Difference]: Start difference. First operand 104 states and 109 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 02:41:52,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:41:52,509 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2021-11-13 02:41:52,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 02:41:52,511 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 28 [2021-11-13 02:41:52,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:41:52,514 INFO L225 Difference]: With dead ends: 113 [2021-11-13 02:41:52,514 INFO L226 Difference]: Without dead ends: 107 [2021-11-13 02:41:52,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2021-11-13 02:41:52,516 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 28 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 230.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 261.29ms IncrementalHoareTripleChecker+Time [2021-11-13 02:41:52,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 503 Invalid, 51 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 261.29ms Time] [2021-11-13 02:41:52,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-13 02:41:52,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-13 02:41:52,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 60 states have (on average 1.8) internal successors, (108), 103 states have internal predecessors, (108), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:41:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 112 transitions. [2021-11-13 02:41:52,527 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 112 transitions. Word has length 28 [2021-11-13 02:41:52,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:41:52,528 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 112 transitions. [2021-11-13 02:41:52,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 10 states have internal predecessors, (38), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-13 02:41:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 112 transitions. [2021-11-13 02:41:52,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 02:41:52,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:41:52,530 INFO L514 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:41:52,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:52,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-13 02:41:52,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-13 02:41:53,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:41:53,138 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:41:53,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:41:53,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1791280848, now seen corresponding path program 2 times [2021-11-13 02:41:53,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:41:53,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887244923] [2021-11-13 02:41:53,139 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:41:53,140 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:41:53,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:41:53,142 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:41:53,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-13 02:41:53,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-13 02:41:53,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:41:53,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-13 02:41:53,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:41:53,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:41:53,383 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 02:41:53,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 35 [2021-11-13 02:41:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-13 02:41:53,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-13 02:42:13,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:13,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887244923] [2021-11-13 02:42:13,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887244923] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:13,070 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:13,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-13 02:42:13,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106593333] [2021-11-13 02:42:13,071 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:13,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 02:42:13,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:13,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 02:42:13,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=79, Unknown=6, NotChecked=0, Total=110 [2021-11-13 02:42:13,073 INFO L87 Difference]: Start difference. First operand 107 states and 112 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:13,478 INFO L93 Difference]: Finished difference Result 131 states and 137 transitions. [2021-11-13 02:42:13,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:42:13,479 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2021-11-13 02:42:13,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:13,481 INFO L225 Difference]: With dead ends: 131 [2021-11-13 02:42:13,481 INFO L226 Difference]: Without dead ends: 131 [2021-11-13 02:42:13,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=31, Invalid=95, Unknown=6, NotChecked=0, Total=132 [2021-11-13 02:42:13,483 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 51 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 314.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.49ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 256 IncrementalHoareTripleChecker+Unchecked, 371.64ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:13,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 450 Invalid, 426 Unknown, 0 Unchecked, 4.49ms Time], IncrementalHoareTripleChecker [2 Valid, 168 Invalid, 0 Unknown, 256 Unchecked, 371.64ms Time] [2021-11-13 02:42:13,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-11-13 02:42:13,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2021-11-13 02:42:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 60 states have (on average 1.7666666666666666) internal successors, (106), 101 states have internal predecessors, (106), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:42:13,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 110 transitions. [2021-11-13 02:42:13,493 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 110 transitions. Word has length 34 [2021-11-13 02:42:13,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:13,493 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 110 transitions. [2021-11-13 02:42:13,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:13,494 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 110 transitions. [2021-11-13 02:42:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-13 02:42:13,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:13,495 INFO L514 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:13,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:13,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:13,708 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:42:13,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1791280849, now seen corresponding path program 1 times [2021-11-13 02:42:13,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:13,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [475373908] [2021-11-13 02:42:13,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:13,712 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:13,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:13,713 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:13,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-13 02:42:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:13,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:42:13,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:14,873 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 02:42:14,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 02:42:15,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:15,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [475373908] [2021-11-13 02:42:15,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [475373908] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:15,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1217018241] [2021-11-13 02:42:15,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:15,709 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:42:15,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:42:15,714 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:42:15,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-11-13 02:42:15,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:15,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-13 02:42:15,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:16,324 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 02:42:16,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:16,706 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 02:42:16,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1217018241] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:16,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720248632] [2021-11-13 02:42:16,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:16,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:42:16,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:42:16,714 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:42:16,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-13 02:42:16,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:16,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-13 02:42:16,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 02:42:17,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:18,745 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-13 02:42:18,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720248632] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:42:18,746 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-13 02:42:18,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 9, 9] total 23 [2021-11-13 02:42:18,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062947945] [2021-11-13 02:42:18,747 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-13 02:42:18,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-13 02:42:18,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:18,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-13 02:42:18,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2021-11-13 02:42:18,749 INFO L87 Difference]: Start difference. First operand 105 states and 110 transitions. Second operand has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 02:42:21,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:21,270 INFO L93 Difference]: Finished difference Result 117 states and 126 transitions. [2021-11-13 02:42:21,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 02:42:21,271 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2021-11-13 02:42:21,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:21,273 INFO L225 Difference]: With dead ends: 117 [2021-11-13 02:42:21,273 INFO L226 Difference]: Without dead ends: 111 [2021-11-13 02:42:21,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=289, Invalid=641, Unknown=0, NotChecked=0, Total=930 [2021-11-13 02:42:21,274 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 71 mSDsluCounter, 889 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 619.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 990 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.18ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 705.20ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:21,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 990 Invalid, 177 Unknown, 0 Unchecked, 5.18ms Time], IncrementalHoareTripleChecker [64 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 705.20ms Time] [2021-11-13 02:42:21,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-13 02:42:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-13 02:42:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 66 states have (on average 1.7121212121212122) internal successors, (113), 107 states have internal predecessors, (113), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:42:21,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 117 transitions. [2021-11-13 02:42:21,281 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 117 transitions. Word has length 34 [2021-11-13 02:42:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:21,282 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 117 transitions. [2021-11-13 02:42:21,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.391304347826087) internal successors, (55), 23 states have internal predecessors, (55), 2 states have call successors, (3), 2 states have call predecessors, (3), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-13 02:42:21,282 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 117 transitions. [2021-11-13 02:42:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-13 02:42:21,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:21,284 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:21,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:21,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:21,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:21,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:42:21,887 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:42:21,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:21,888 INFO L85 PathProgramCache]: Analyzing trace with hash 896137425, now seen corresponding path program 2 times [2021-11-13 02:42:21,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:21,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483643051] [2021-11-13 02:42:21,888 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-13 02:42:21,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:21,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:21,890 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:21,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-13 02:42:22,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-13 02:42:22,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-13 02:42:22,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-13 02:42:22,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:22,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:42:22,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:42:23,271 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:42:23,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 31 [2021-11-13 02:42:23,277 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-13 02:42:23,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 24 [2021-11-13 02:42:23,370 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-13 02:42:23,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-13 02:42:27,369 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:27,369 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483643051] [2021-11-13 02:42:27,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483643051] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:27,369 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:27,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:42:27,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11840585] [2021-11-13 02:42:27,370 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:27,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:42:27,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:27,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:42:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2021-11-13 02:42:27,371 INFO L87 Difference]: Start difference. First operand 111 states and 117 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:28,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:28,632 INFO L93 Difference]: Finished difference Result 110 states and 116 transitions. [2021-11-13 02:42:28,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:42:28,633 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2021-11-13 02:42:28,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:28,634 INFO L225 Difference]: With dead ends: 110 [2021-11-13 02:42:28,634 INFO L226 Difference]: Without dead ends: 110 [2021-11-13 02:42:28,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=40, Invalid=141, Unknown=1, NotChecked=0, Total=182 [2021-11-13 02:42:28,636 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 872.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 260 IncrementalHoareTripleChecker+Unchecked, 1044.92ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:28,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 436 Invalid, 398 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [1 Valid, 137 Invalid, 0 Unknown, 260 Unchecked, 1044.92ms Time] [2021-11-13 02:42:28,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-13 02:42:28,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-11-13 02:42:28,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 66 states have (on average 1.696969696969697) internal successors, (112), 106 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:42:28,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 116 transitions. [2021-11-13 02:42:28,643 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 116 transitions. Word has length 42 [2021-11-13 02:42:28,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:28,643 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 116 transitions. [2021-11-13 02:42:28,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:28,644 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 116 transitions. [2021-11-13 02:42:28,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-13 02:42:28,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:28,646 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:28,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:28,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:28,864 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:42:28,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2100362031, now seen corresponding path program 1 times [2021-11-13 02:42:28,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:28,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687605933] [2021-11-13 02:42:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:28,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:28,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:28,867 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:28,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-13 02:42:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:29,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-13 02:42:29,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:29,164 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:42:29,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-13 02:42:29,238 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:29,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687605933] [2021-11-13 02:42:29,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687605933] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:29,238 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:29,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-13 02:42:29,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939410258] [2021-11-13 02:42:29,238 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:29,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 02:42:29,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 02:42:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:42:29,239 INFO L87 Difference]: Start difference. First operand 110 states and 116 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:42:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:29,421 INFO L93 Difference]: Finished difference Result 135 states and 142 transitions. [2021-11-13 02:42:29,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 02:42:29,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2021-11-13 02:42:29,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:29,423 INFO L225 Difference]: With dead ends: 135 [2021-11-13 02:42:29,423 INFO L226 Difference]: Without dead ends: 135 [2021-11-13 02:42:29,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 02:42:29,424 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 51 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175.98ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:29,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 122 Invalid, 63 Unknown, 0 Unchecked, 1.21ms Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 175.98ms Time] [2021-11-13 02:42:29,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-13 02:42:29,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 109. [2021-11-13 02:42:29,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 66 states have (on average 1.6818181818181819) internal successors, (111), 105 states have internal predecessors, (111), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:42:29,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2021-11-13 02:42:29,431 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 44 [2021-11-13 02:42:29,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:29,431 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2021-11-13 02:42:29,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-13 02:42:29,432 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2021-11-13 02:42:29,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-13 02:42:29,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:29,433 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:29,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:29,645 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:29,646 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:42:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2100362030, now seen corresponding path program 1 times [2021-11-13 02:42:29,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:29,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114341804] [2021-11-13 02:42:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:29,647 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:29,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:29,649 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:29,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-13 02:42:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:29,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-13 02:42:29,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:30,054 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-13 02:42:30,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:42:30,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 6 [2021-11-13 02:42:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2021-11-13 02:42:30,432 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:42:30,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114341804] [2021-11-13 02:42:30,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1114341804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-13 02:42:30,433 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:42:30,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-11-13 02:42:30,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892915520] [2021-11-13 02:42:30,433 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-13 02:42:30,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 02:42:30,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:42:30,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 02:42:30,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-13 02:42:30,435 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:31,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:42:31,247 INFO L93 Difference]: Finished difference Result 114 states and 121 transitions. [2021-11-13 02:42:31,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 02:42:31,248 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-11-13 02:42:31,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:42:31,249 INFO L225 Difference]: With dead ends: 114 [2021-11-13 02:42:31,249 INFO L226 Difference]: Without dead ends: 114 [2021-11-13 02:42:31,249 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2021-11-13 02:42:31,250 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 172 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 701.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.27ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 785.92ms IncrementalHoareTripleChecker+Time [2021-11-13 02:42:31,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [172 Valid, 334 Invalid, 162 Unknown, 0 Unchecked, 3.27ms Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 785.92ms Time] [2021-11-13 02:42:31,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-13 02:42:31,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 108. [2021-11-13 02:42:31,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 104 states have internal predecessors, (110), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-13 02:42:31,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 114 transitions. [2021-11-13 02:42:31,256 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 114 transitions. Word has length 44 [2021-11-13 02:42:31,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:42:31,256 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 114 transitions. [2021-11-13 02:42:31,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.5454545454545454) internal successors, (39), 10 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-13 02:42:31,256 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 114 transitions. [2021-11-13 02:42:31,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 02:42:31,258 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:42:31,258 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:42:31,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-13 02:42:31,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-13 02:42:31,458 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:42:31,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:42:31,459 INFO L85 PathProgramCache]: Analyzing trace with hash 186717587, now seen corresponding path program 1 times [2021-11-13 02:42:31,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:42:31,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [888024571] [2021-11-13 02:42:31,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:42:31,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:42:31,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:42:31,460 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:42:31,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-13 02:42:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:42:31,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 02:42:31,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:42:31,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:42:32,052 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 02:42:32,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 36 [2021-11-13 02:42:32,221 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-13 02:42:32,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 53 [2021-11-13 02:42:32,441 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:42:32,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:43:08,266 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:43:08,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [888024571] [2021-11-13 02:43:08,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [888024571] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:08,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [82879102] [2021-11-13 02:43:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:08,267 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:43:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:43:08,270 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:43:08,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2021-11-13 02:43:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:08,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-13 02:43:08,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:08,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:43:12,991 INFO L354 Elim1Store]: treesize reduction 12, result has 40.0 percent of original size [2021-11-13 02:43:12,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 23 treesize of output 28 [2021-11-13 02:43:13,198 INFO L354 Elim1Store]: treesize reduction 30, result has 36.2 percent of original size [2021-11-13 02:43:13,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 64 [2021-11-13 02:43:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:43:13,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:36,158 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:43:36,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [82879102] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 02:43:36,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732259088] [2021-11-13 02:43:36,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:36,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:43:36,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:43:36,160 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:43:36,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-13 02:43:36,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:36,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-13 02:43:36,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:36,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:43:36,631 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 02:43:36,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 36 [2021-11-13 02:43:36,860 INFO L354 Elim1Store]: treesize reduction 38, result has 39.7 percent of original size [2021-11-13 02:43:36,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 65 [2021-11-13 02:43:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:43:37,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:43:55,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_calloc_model_~ptr~0#1.base_83|] [2021-11-13 02:43:55,083 INFO L186 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2021-11-13 02:43:55,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 13, 13] total 29 [2021-11-13 02:43:55,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531061335] [2021-11-13 02:43:55,084 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2021-11-13 02:43:55,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-13 02:43:55,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-13 02:43:55,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-13 02:43:55,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=993, Unknown=27, NotChecked=0, Total=1190 [2021-11-13 02:43:55,087 INFO L87 Difference]: Start difference. First operand 108 states and 114 transitions. Second operand has 30 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 23 states have internal predecessors, (85), 3 states have call successors, (4), 4 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-13 02:43:55,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 02:43:55,917 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2021-11-13 02:43:55,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 02:43:55,917 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 23 states have internal predecessors, (85), 3 states have call successors, (4), 4 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) Word has length 46 [2021-11-13 02:43:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 02:43:55,919 INFO L225 Difference]: With dead ends: 135 [2021-11-13 02:43:55,919 INFO L226 Difference]: Without dead ends: 135 [2021-11-13 02:43:55,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 189 SyntacticMatches, 15 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 79.8s TimeCoverageRelationStatistics Valid=252, Invalid=1443, Unknown=27, NotChecked=0, Total=1722 [2021-11-13 02:43:55,920 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 13 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 244.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.82ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 352 IncrementalHoareTripleChecker+Unchecked, 279.80ms IncrementalHoareTripleChecker+Time [2021-11-13 02:43:55,921 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 813 Invalid, 449 Unknown, 0 Unchecked, 3.82ms Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 352 Unchecked, 279.80ms Time] [2021-11-13 02:43:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-13 02:43:55,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-13 02:43:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 91 states have (on average 1.5164835164835164) internal successors, (138), 129 states have internal predecessors, (138), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-13 02:43:55,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 144 transitions. [2021-11-13 02:43:55,927 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 144 transitions. Word has length 46 [2021-11-13 02:43:55,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 02:43:55,927 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 144 transitions. [2021-11-13 02:43:55,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 23 states have internal predecessors, (85), 3 states have call successors, (4), 4 states have call predecessors, (4), 6 states have return successors, (6), 6 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-13 02:43:55,928 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 144 transitions. [2021-11-13 02:43:55,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-13 02:43:55,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 02:43:55,929 INFO L514 BasicCegarLoop]: trace histogram [16, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:43:55,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:56,142 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:56,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-13 02:43:56,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:43:56,533 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 42 more)] === [2021-11-13 02:43:56,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 02:43:56,534 INFO L85 PathProgramCache]: Analyzing trace with hash 186717588, now seen corresponding path program 1 times [2021-11-13 02:43:56,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-13 02:43:56,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885990382] [2021-11-13 02:43:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:43:56,534 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-13 02:43:56,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat [2021-11-13 02:43:56,535 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-13 02:43:56,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-13 02:43:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:43:56,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-13 02:43:56,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:43:56,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:43:56,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:44:01,187 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-11-13 02:44:01,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 31 treesize of output 33 [2021-11-13 02:44:01,234 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:44:01,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30 [2021-11-13 02:44:04,254 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-13 02:44:04,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 36 [2021-11-13 02:44:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:44:06,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:10,080 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-13 02:44:10,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885990382] [2021-11-13 02:44:10,081 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_l2_insert_#t~malloc8#1.base_33|] [2021-11-13 02:44:10,081 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [327413840] [2021-11-13 02:44:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:10,081 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-13 02:44:10,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-13 02:44:10,082 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-13 02:44:10,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-13 02:44:10,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:10,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-13 02:44:10,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:10,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:44:10,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:44:12,391 INFO L354 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2021-11-13 02:44:12,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 30 treesize of output 32 [2021-11-13 02:44:12,436 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-13 02:44:12,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 29 [2021-11-13 02:44:12,907 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-13 02:44:12,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 23 treesize of output 36 [2021-11-13 02:44:16,339 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:44:16,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:19,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_l2_insert_#t~malloc8#1.base_33|] [2021-11-13 02:44:19,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487867451] [2021-11-13 02:44:19,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 02:44:19,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 02:44:19,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 [2021-11-13 02:44:19,933 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 02:44:19,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-13 02:44:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 02:44:20,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-13 02:44:20,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 02:44:20,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2021-11-13 02:44:20,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-13 02:44:22,145 INFO L354 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2021-11-13 02:44:22,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 20 [2021-11-13 02:44:22,202 INFO L354 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2021-11-13 02:44:22,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 32 [2021-11-13 02:44:22,818 INFO L354 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2021-11-13 02:44:22,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 53 [2021-11-13 02:44:22,835 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-13 02:44:22,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 18 [2021-11-13 02:44:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 1 proven. 86 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-11-13 02:44:23,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 02:44:31,512 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Shadow problem: [|v_ULTIMATE.start_l2_insert_#t~malloc8#1.base_37|] [2021-11-13 02:44:31,512 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-13 02:44:31,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-13 02:44:31,513 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-13 02:44:31,513 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-13 02:44:31,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATION (45 of 46 remaining) [2021-11-13 02:44:31,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATION (44 of 46 remaining) [2021-11-13 02:44:31,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATION (43 of 46 remaining) [2021-11-13 02:44:31,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATION (42 of 46 remaining) [2021-11-13 02:44:31,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATION (41 of 46 remaining) [2021-11-13 02:44:31,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATION (40 of 46 remaining) [2021-11-13 02:44:31,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATION (39 of 46 remaining) [2021-11-13 02:44:31,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATION (38 of 46 remaining) [2021-11-13 02:44:31,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATION (37 of 46 remaining) [2021-11-13 02:44:31,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATION (36 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATION (35 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATION (34 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATION (33 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATION (32 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATION (31 of 46 remaining) [2021-11-13 02:44:31,523 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATION (30 of 46 remaining) [2021-11-13 02:44:31,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATION (29 of 46 remaining) [2021-11-13 02:44:31,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATION (28 of 46 remaining) [2021-11-13 02:44:31,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATION (27 of 46 remaining) [2021-11-13 02:44:31,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATION (26 of 46 remaining) [2021-11-13 02:44:31,524 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATION (25 of 46 remaining) [2021-11-13 02:44:31,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATION (24 of 46 remaining) [2021-11-13 02:44:31,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATION (23 of 46 remaining) [2021-11-13 02:44:31,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATION (22 of 46 remaining) [2021-11-13 02:44:31,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATION (21 of 46 remaining) [2021-11-13 02:44:31,525 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATION (20 of 46 remaining) [2021-11-13 02:44:31,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_FREE (19 of 46 remaining) [2021-11-13 02:44:31,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_FREE (18 of 46 remaining) [2021-11-13 02:44:31,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (17 of 46 remaining) [2021-11-13 02:44:31,526 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29REQUIRES_VIOLATION (16 of 46 remaining) [2021-11-13 02:44:31,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30REQUIRES_VIOLATION (15 of 46 remaining) [2021-11-13 02:44:31,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_FREE (14 of 46 remaining) [2021-11-13 02:44:31,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_FREE (13 of 46 remaining) [2021-11-13 02:44:31,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE (12 of 46 remaining) [2021-11-13 02:44:31,527 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34REQUIRES_VIOLATION (11 of 46 remaining) [2021-11-13 02:44:31,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35REQUIRES_VIOLATION (10 of 46 remaining) [2021-11-13 02:44:31,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE (9 of 46 remaining) [2021-11-13 02:44:31,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE (8 of 46 remaining) [2021-11-13 02:44:31,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE (7 of 46 remaining) [2021-11-13 02:44:31,528 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATION (6 of 46 remaining) [2021-11-13 02:44:31,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATION (5 of 46 remaining) [2021-11-13 02:44:31,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATION (4 of 46 remaining) [2021-11-13 02:44:31,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATION (3 of 46 remaining) [2021-11-13 02:44:31,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_LEAK (2 of 46 remaining) [2021-11-13 02:44:31,529 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE (1 of 46 remaining) [2021-11-13 02:44:31,530 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location calloc_modelErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE (0 of 46 remaining) [2021-11-13 02:44:31,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-13 02:44:31,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-13 02:44:31,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2021-11-13 02:44:32,145 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-13 02:44:32,147 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 02:44:32,150 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-13 02:44:32,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:44:32 BoogieIcfgContainer [2021-11-13 02:44:32,164 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-13 02:44:32,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 02:44:32,165 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 02:44:32,165 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 02:44:32,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:41:45" (3/4) ... [2021-11-13 02:44:32,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-13 02:44:32,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 02:44:32,169 INFO L158 Benchmark]: Toolchain (without parser) took 168497.08ms. Allocated memory was 62.9MB in the beginning and 113.2MB in the end (delta: 50.3MB). Free memory was 42.3MB in the beginning and 28.0MB in the end (delta: 14.3MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,170 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:44:32,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.07ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 36.7MB in the end (delta: 5.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.93ms. Allocated memory is still 62.9MB. Free memory was 36.4MB in the beginning and 34.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,171 INFO L158 Benchmark]: Boogie Preprocessor took 36.72ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 32.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,171 INFO L158 Benchmark]: RCFGBuilder took 892.36ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 32.3MB in the beginning and 56.7MB in the end (delta: -24.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,172 INFO L158 Benchmark]: TraceAbstraction took 166845.68ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.3MB in the beginning and 28.0MB in the end (delta: 28.3MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. [2021-11-13 02:44:32,172 INFO L158 Benchmark]: Witness Printer took 3.96ms. Allocated memory is still 113.2MB. Free memory is still 28.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 02:44:32,174 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 62.9MB. Free memory is still 45.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.07ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 36.7MB in the end (delta: 5.4MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.93ms. Allocated memory is still 62.9MB. Free memory was 36.4MB in the beginning and 34.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.72ms. Allocated memory is still 62.9MB. Free memory was 34.1MB in the beginning and 32.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 892.36ms. Allocated memory was 62.9MB in the beginning and 90.2MB in the end (delta: 27.3MB). Free memory was 32.3MB in the beginning and 56.7MB in the end (delta: -24.3MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 166845.68ms. Allocated memory was 90.2MB in the beginning and 113.2MB in the end (delta: 23.1MB). Free memory was 56.3MB in the beginning and 28.0MB in the end (delta: 28.3MB). Peak memory consumption was 51.6MB. Max. memory is 16.1GB. * Witness Printer took 3.96ms. Allocated memory is still 113.2MB. Free memory is still 28.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L687] static struct L1 *list; [L689] CALL l1_insert(&list) [L676] CALL, EXPR calloc_model(1U, sizeof *item) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L676] RET, EXPR calloc_model(1U, sizeof *item) [L676] struct L1 *item = calloc_model(1U, sizeof *item); [L677] COND FALSE !(!item) [L680] CALL l2_insert(&item->l2) [L655] CALL, EXPR calloc_model(1U, sizeof *item) [L641] void *ptr = malloc(nmemb * size); [L642] EXPR, FCALL memset(ptr, 0, nmemb * size) [L642] return memset(ptr, 0, nmemb * size); [L655] RET, EXPR calloc_model(1U, sizeof *item) [L655] struct L2 *item = calloc_model(1U, sizeof *item); [L656] COND FALSE !(!item) [L658] item->proto = malloc(119U) [L659] EXPR item->proto [L659] COND FALSE !(!item->proto) [L661] \read(**list) - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 659]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 661]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 662]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 669]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 685]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 46 error locations. Started 1 CEGAR loops. OverallTime: 166.8s, OverallIterations: 12, TraceHistogramMax: 16, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 7.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 422 SdHoareTripleChecker+Valid, 4455.10ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 422 mSDsluCounter, 4579 SdHoareTripleChecker+Invalid, 3848.33ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 868 IncrementalHoareTripleChecker+Unchecked, 3535 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 903 IncrementalHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 1044 mSDtfsCounter, 903 mSolverCounterSat, 33.21ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1020 GetRequests, 877 SyntacticMatches, 16 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 831 ImplicationChecksByTransitivity, 107.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=11, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 58 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 111.1s InterpolantComputationTime, 531 NumberOfCodeBlocks, 512 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 983 ConstructedInterpolants, 133 QuantifiedInterpolants, 7876 SizeOfPredicates, 79 NumberOfNonLiveVariables, 2490 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 33 InterpolantComputations, 15 PerfectInterpolantSequences, 1708/2243 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-13 02:44:32,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9805201-111f-4ad2-8753-0f4d868b21bf/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN