./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:31:06,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:31:06,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:31:06,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:31:06,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:31:06,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:31:06,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:31:06,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:31:06,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:31:06,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:31:06,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:31:06,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:31:06,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:31:06,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:31:06,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:31:06,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:31:06,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:31:06,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:31:06,654 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:31:06,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:31:06,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:31:06,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:31:06,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:31:06,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:31:06,676 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:31:06,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:31:06,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:31:06,677 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:31:06,678 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:31:06,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:31:06,680 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:31:06,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:31:06,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:31:06,682 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:31:06,684 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:31:06,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:31:06,685 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:31:06,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:31:06,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:31:06,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:31:06,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:31:06,688 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:31:06,723 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:31:06,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:31:06,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:31:06,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:31:06,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:31:06,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:31:06,728 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:31:06,729 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:31:06,729 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:31:06,729 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:31:06,730 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:31:06,731 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:31:06,731 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:31:06,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:31:06,732 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:31:06,732 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:31:06,732 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:31:06,732 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:31:06,733 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:31:06,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:31:06,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:31:06,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:31:06,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:31:06,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:31:06,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:31:06,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:31:06,736 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:31:06,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:31:06,737 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:31:06,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:31:06,737 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:31:06,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:31:06,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:06,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:31:06,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:31:06,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:31:06,739 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:31:06,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:31:06,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:31:06,740 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:31:06,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:31:06,740 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_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2021-11-23 02:31:07,000 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:31:07,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:31:07,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:31:07,038 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:31:07,039 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:31:07,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-23 02:31:07,118 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/data/24c9a61b1/91ea329693f44236885b1fbb08f90d60/FLAGca524faa0 [2021-11-23 02:31:07,744 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:31:07,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-23 02:31:07,776 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/data/24c9a61b1/91ea329693f44236885b1fbb08f90d60/FLAGca524faa0 [2021-11-23 02:31:08,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/data/24c9a61b1/91ea329693f44236885b1fbb08f90d60 [2021-11-23 02:31:08,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:31:08,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:31:08,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:08,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:31:08,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:31:08,128 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c4e9909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08, skipping insertion in model container [2021-11-23 02:31:08,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:31:08,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:31:08,573 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-23 02:31:08,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:08,667 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:31:08,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-23 02:31:08,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:31:08,801 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:31:08,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08 WrapperNode [2021-11-23 02:31:08,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:31:08,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:08,803 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:31:08,803 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:31:08,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,883 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-23 02:31:08,884 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:31:08,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:31:08,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:31:08,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:31:08,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,980 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:31:08,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:31:08,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:31:08,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:31:08,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (1/1) ... [2021-11-23 02:31:08,997 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:31:09,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:09,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:31:09,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:31:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:31:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:31:09,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:31:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:31:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:31:09,084 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:31:09,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:31:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:31:09,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:31:09,299 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:31:09,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:31:10,148 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:31:10,430 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:31:10,431 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-23 02:31:10,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:10 BoogieIcfgContainer [2021-11-23 02:31:10,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:31:10,437 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:31:10,437 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:31:10,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:31:10,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:31:08" (1/3) ... [2021-11-23 02:31:10,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b936c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:10, skipping insertion in model container [2021-11-23 02:31:10,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:31:08" (2/3) ... [2021-11-23 02:31:10,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b936c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:31:10, skipping insertion in model container [2021-11-23 02:31:10,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:31:10" (3/3) ... [2021-11-23 02:31:10,446 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2021-11-23 02:31:10,457 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:31:10,458 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:31:10,529 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:31:10,549 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=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:31:10,558 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:31:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:31:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:31:10,589 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:10,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:10,590 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:10,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:10,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-23 02:31:10,607 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:10,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580150047] [2021-11-23 02:31:10,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:10,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:10,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:10,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580150047] [2021-11-23 02:31:10,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580150047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:10,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:31:10,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:31:10,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580503377] [2021-11-23 02:31:10,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:10,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:31:10,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:31:10,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:31:10,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:10,869 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 02:31:12,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:31:12,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:12,491 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-23 02:31:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:31:12,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 8 [2021-11-23 02:31:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:12,529 INFO L225 Difference]: With dead ends: 209 [2021-11-23 02:31:12,529 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 02:31:12,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:31:12,541 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:12,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 02:31:12,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 02:31:12,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-23 02:31:12,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:31:12,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-23 02:31:12,636 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-23 02:31:12,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:12,637 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-23 02:31:12,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 02:31:12,638 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-23 02:31:12,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 02:31:12,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:12,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:12,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:31:12,643 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:12,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:12,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-23 02:31:12,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:12,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439075258] [2021-11-23 02:31:12,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:12,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:12,687 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:31:12,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362180860] [2021-11-23 02:31:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:12,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:12,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:12,694 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:31:12,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:31:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:12,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:31:12,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:31:13,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:13,053 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:31:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:31:13,157 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:13,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439075258] [2021-11-23 02:31:13,163 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:31:13,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362180860] [2021-11-23 02:31:13,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362180860] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:31:13,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [32418049] [2021-11-23 02:31:13,202 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-23 02:31:13,207 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:31:13,213 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:31:13,222 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:31:13,224 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:31:13,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:13,376 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 22 treesize of output 7 [2021-11-23 02:31:13,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:13,400 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 22 treesize of output 7 [2021-11-23 02:31:13,468 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 02:31:13,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-23 02:31:13,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:13,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:31:13,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:13,509 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:31:13,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 02:31:13,570 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:31:13,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 02:31:14,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:14,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:14,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:31:14,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:31:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:31:14,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:31:14,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:14,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:14,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:14,607 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:31:15,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [32418049] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:15,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:31:15,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-23 02:31:15,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62405524] [2021-11-23 02:31:15,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:15,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:31:15,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:31:15,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:31:15,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:31:15,624 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-11-23 02:31:18,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:18,458 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-23 02:31:18,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:31:18,464 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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 31 [2021-11-23 02:31:18,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:18,466 INFO L225 Difference]: With dead ends: 173 [2021-11-23 02:31:18,467 INFO L226 Difference]: Without dead ends: 94 [2021-11-23 02:31:18,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:31:18,469 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:18,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-23 02:31:18,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-23 02:31:18,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-23 02:31:18,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:31:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-23 02:31:18,488 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-23 02:31:18,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:18,489 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-23 02:31:18,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 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) [2021-11-23 02:31:18,489 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-23 02:31:18,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 02:31:18,490 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:18,490 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:18,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:31:18,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:18,710 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:18,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-23 02:31:18,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:18,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089212801] [2021-11-23 02:31:18,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:18,711 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:18,727 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:31:18,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1231306413] [2021-11-23 02:31:18,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:18,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:18,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:18,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:31:18,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:31:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:18,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:31:18,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:31:19,005 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:31:19,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:31:19,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:31:19,150 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:19,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089212801] [2021-11-23 02:31:19,151 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:31:19,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1231306413] [2021-11-23 02:31:19,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1231306413] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:31:19,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034346744] [2021-11-23 02:31:19,156 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:31:19,156 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:31:19,157 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:31:19,157 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:31:19,157 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:31:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,205 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 22 treesize of output 7 [2021-11-23 02:31:19,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:31:19,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,229 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 02:31:19,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 02:31:19,271 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:31:19,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 02:31:19,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:31:19,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 22 [2021-11-23 02:31:19,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:19,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:31:19,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:31:19,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 02:31:19,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:19,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 02:31:19,852 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:31:19,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 02:31:19,924 INFO L354 Elim1Store]: treesize reduction 160, result has 11.6 percent of original size [2021-11-23 02:31:19,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 116 treesize of output 119 [2021-11-23 02:31:19,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:19,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 02:31:20,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:31:20,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:31:20,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:31:20,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:20,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:20,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-23 02:31:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:31:20,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:20,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:20,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 02:31:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:20,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:31:21,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:21,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 02:31:21,123 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 02:31:21,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 02:31:21,175 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:31:21,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 02:31:21,270 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 101 for LOIs [2021-11-23 02:31:21,365 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:31:23,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1034346744] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:31:23,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 02:31:23,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-23 02:31:23,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238690842] [2021-11-23 02:31:23,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:31:23,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 02:31:23,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:31:23,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 02:31:23,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 02:31:23,452 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:31:26,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:31:26,463 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-23 02:31:26,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 02:31:26,481 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-23 02:31:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:31:26,483 INFO L225 Difference]: With dead ends: 175 [2021-11-23 02:31:26,483 INFO L226 Difference]: Without dead ends: 96 [2021-11-23 02:31:26,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 02:31:26,485 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:31:26,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 53 Unchecked, 3.0s Time] [2021-11-23 02:31:26,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-23 02:31:26,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-23 02:31:26,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:31:26,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-23 02:31:26,504 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-23 02:31:26,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:31:26,504 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-23 02:31:26,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:31:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-23 02:31:26,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 02:31:26,507 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:31:26,507 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:31:26,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:31:26,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:26,708 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:31:26,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:31:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-23 02:31:26,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:31:26,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807510279] [2021-11-23 02:31:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:26,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:31:26,722 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:31:26,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [339369115] [2021-11-23 02:31:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:31:26,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:31:26,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:31:26,724 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:31:26,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e2be7bf-a692-49af-bb20-b43dae352612/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:31:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:31:26,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:31:26,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:31:27,022 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:31:27,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:31:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:31:27,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:31:27,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807510279] [2021-11-23 02:31:27,138 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:31:27,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339369115] [2021-11-23 02:31:27,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339369115] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:31:27,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1790949299] [2021-11-23 02:31:27,142 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 02:31:27,143 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:31:27,143 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:31:27,143 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:31:27,144 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:31:27,220 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:31:27,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 02:31:27,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 22 [2021-11-23 02:31:27,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:31:27,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:31:27,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-23 02:31:27,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:31:27,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 02:31:27,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 02:31:27,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:27,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:31:27,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-23 02:31:27,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:31:27,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:27,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:31:27,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 02:31:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 02:31:27,861 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 02:31:27,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 02:31:27,922 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 02:31:27,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 02:31:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:27,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 02:31:28,040 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 [2021-11-23 02:31:28,045 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 [2021-11-23 02:31:28,049 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 [2021-11-23 02:31:28,083 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 02:31:28,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-23 02:31:28,113 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:31:28,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-23 02:31:28,136 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:31:28,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-23 02:31:28,174 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 [2021-11-23 02:31:28,184 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 [2021-11-23 02:31:28,191 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 [2021-11-23 02:31:28,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 02:31:28,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:31:28,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:31:28,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 02:31:28,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 02:31:28,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:28,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 02:31:38,168 WARN L227 SmtUtils]: Spent 9.54s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:31:38,169 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:31:38,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2853 treesize of output 2330 [2021-11-23 02:31:38,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:31:49,943 WARN L227 SmtUtils]: Spent 11.73s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:31:49,944 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:31:49,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2954 treesize of output 2672 [2021-11-23 02:32:01,148 WARN L227 SmtUtils]: Spent 11.07s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:32:01,149 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 02:32:01,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2922 treesize of output 2692 [2021-11-23 02:32:02,804 INFO L354 Elim1Store]: treesize reduction 126, result has 25.0 percent of original size [2021-11-23 02:32:02,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25960 treesize of output 25988 [2021-11-23 02:32:03,554 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 02:32:03,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 25970 treesize of output 25981 [2021-11-23 02:32:04,261 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:32:04,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:32:04,449 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 02:32:04,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-23 02:32:04,647 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-23 02:32:04,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:32:04,940 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:32:04,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61