./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/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 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:46:32,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:46:32,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:46:32,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:46:32,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:46:32,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:46:32,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:46:32,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:46:32,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:46:32,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:46:32,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:46:32,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:46:32,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:46:32,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:46:32,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:46:32,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:46:32,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:46:32,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:46:32,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:46:32,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:46:32,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:46:32,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:46:32,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:46:32,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:46:32,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:46:32,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:46:32,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:46:32,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:46:32,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:46:32,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:46:32,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:46:32,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:46:32,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:46:32,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:46:32,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:46:32,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:46:32,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:46:32,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:46:32,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:46:32,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:46:32,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:46:32,783 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:46:32,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:46:32,829 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:46:32,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:46:32,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:46:32,838 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:46:32,838 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:46:32,839 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:46:32,839 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:46:32,839 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:46:32,839 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:46:32,840 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:46:32,841 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:46:32,841 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:46:32,841 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:46:32,842 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:46:32,842 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:46:32,842 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:46:32,842 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:46:32,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:46:32,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:46:32,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:46:32,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:46:32,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:46:32,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:46:32,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:46:32,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:46:32,847 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:46:32,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:46:32,848 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:46:32,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:46:32,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:46:32,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:46:32,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:46:32,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:46:32,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:46:32,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:46:32,850 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:46:32,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:46:32,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:46:32,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:46:32,851 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:46:32,851 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 [2021-11-23 02:46:33,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:46:33,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:46:33,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:46:33,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:46:33,204 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:46:33,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2021-11-23 02:46:33,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/data/e3d61db75/845dcf976fa6490d9640bf60ba7cc7cc/FLAGffd03e7bc [2021-11-23 02:46:33,857 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:46:33,858 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2021-11-23 02:46:33,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/data/e3d61db75/845dcf976fa6490d9640bf60ba7cc7cc/FLAGffd03e7bc [2021-11-23 02:46:34,098 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/data/e3d61db75/845dcf976fa6490d9640bf60ba7cc7cc [2021-11-23 02:46:34,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:46:34,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:46:34,117 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:46:34,117 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:46:34,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:46:34,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:34,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9f309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34, skipping insertion in model container [2021-11-23 02:46:34,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:34,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:46:34,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:46:34,605 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[33021,33034] [2021-11-23 02:46:34,702 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44124,44137] [2021-11-23 02:46:34,703 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44245,44258] [2021-11-23 02:46:34,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:46:34,719 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:46:34,751 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[33021,33034] [2021-11-23 02:46:34,822 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44124,44137] [2021-11-23 02:46:34,825 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_e13ea829-1cdc-4ad5-a88c-c959d4166eba/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44245,44258] [2021-11-23 02:46:34,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:46:34,903 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:46:34,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34 WrapperNode [2021-11-23 02:46:34,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:46:34,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:46:34,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:46:34,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:46:34,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:34,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,108 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-23 02:46:35,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:46:35,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:46:35,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:46:35,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:46:35,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,222 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,289 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:46:35,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:46:35,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:46:35,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:46:35,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (1/1) ... [2021-11-23 02:46:35,309 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:46:35,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:35,346 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:46:35,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:46:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:46:35,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:46:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:46:35,396 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:46:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:46:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:46:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:46:35,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:46:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:46:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:46:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:46:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:46:35,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:46:35,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:46:35,711 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:46:35,713 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:46:36,646 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:46:37,082 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:46:37,082 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 02:46:37,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:37 BoogieIcfgContainer [2021-11-23 02:46:37,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:46:37,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:46:37,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:46:37,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:46:37,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:46:34" (1/3) ... [2021-11-23 02:46:37,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8ba4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:37, skipping insertion in model container [2021-11-23 02:46:37,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:46:34" (2/3) ... [2021-11-23 02:46:37,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f8ba4a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:46:37, skipping insertion in model container [2021-11-23 02:46:37,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:46:37" (3/3) ... [2021-11-23 02:46:37,115 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-1.i [2021-11-23 02:46:37,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:46:37,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 02:46:37,173 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:46:37,180 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 02:46:37,181 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 02:46:37,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:37,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 02:46:37,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:37,210 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:37,211 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:37,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:37,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1906206326, now seen corresponding path program 1 times [2021-11-23 02:46:37,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:37,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192347281] [2021-11-23 02:46:37,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:37,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:37,391 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 02:46:37,391 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:37,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192347281] [2021-11-23 02:46:37,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192347281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:37,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:37,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:37,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434851777] [2021-11-23 02:46:37,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:37,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:46:37,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:37,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:46:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:46:37,434 INFO L87 Difference]: Start difference. First operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:37,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:37,925 INFO L93 Difference]: Finished difference Result 215 states and 377 transitions. [2021-11-23 02:46:37,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:46:37,934 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 02:46:37,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:37,944 INFO L225 Difference]: With dead ends: 215 [2021-11-23 02:46:37,944 INFO L226 Difference]: Without dead ends: 107 [2021-11-23 02:46:37,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:46:37,952 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:37,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 02:46:37,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-23 02:46:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-23 02:46:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-23 02:46:38,005 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-23 02:46:38,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:38,005 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-23 02:46:38,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:38,006 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-23 02:46:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:46:38,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:38,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:38,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:46:38,007 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:38,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:38,008 INFO L85 PathProgramCache]: Analyzing trace with hash 30908713, now seen corresponding path program 1 times [2021-11-23 02:46:38,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:38,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232640842] [2021-11-23 02:46:38,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:38,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:38,079 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 02:46:38,080 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:38,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232640842] [2021-11-23 02:46:38,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232640842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:38,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:38,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:46:38,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222323801] [2021-11-23 02:46:38,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:38,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:38,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:38,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:38,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:38,084 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:40,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:40,142 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-23 02:46:40,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:40,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 02:46:40,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:40,152 INFO L225 Difference]: With dead ends: 219 [2021-11-23 02:46:40,152 INFO L226 Difference]: Without dead ends: 165 [2021-11-23 02:46:40,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:40,155 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:40,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 02:46:40,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-23 02:46:40,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-23 02:46:40,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:40,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-23 02:46:40,176 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-23 02:46:40,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:40,177 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-23 02:46:40,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:40,177 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-23 02:46:40,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 02:46:40,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:40,179 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 02:46:40,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:46:40,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:40,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:40,181 INFO L85 PathProgramCache]: Analyzing trace with hash -667749530, now seen corresponding path program 1 times [2021-11-23 02:46:40,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:40,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569149617] [2021-11-23 02:46:40,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:40,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:40,211 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410072421] [2021-11-23 02:46:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:40,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:40,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:40,216 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:40,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:46:40,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:40,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:46:40,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:46:40,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:40,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:40,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569149617] [2021-11-23 02:46:40,613 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:40,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410072421] [2021-11-23 02:46:40,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410072421] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:40,614 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:40,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:46:40,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959269128] [2021-11-23 02:46:40,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:40,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:46:40,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:40,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:46:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:46:40,617 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:41,633 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-23 02:46:41,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:46:41,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-23 02:46:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:41,641 INFO L225 Difference]: With dead ends: 265 [2021-11-23 02:46:41,641 INFO L226 Difference]: Without dead ends: 159 [2021-11-23 02:46:41,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 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 02:46:41,644 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:41,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-23 02:46:41,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-23 02:46:41,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-23 02:46:41,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-23 02:46:41,666 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-23 02:46:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:41,666 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-23 02:46:41,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:46:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-23 02:46:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-23 02:46:41,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:41,669 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:41,709 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:41,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:41,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -357184176, now seen corresponding path program 1 times [2021-11-23 02:46:41,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:41,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487020583] [2021-11-23 02:46:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:41,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:41,932 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:41,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2137380667] [2021-11-23 02:46:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:41,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:41,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:41,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:41,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:46:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:42,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:46:42,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:42,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:46:42,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 02:46:42,396 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 02:46:42,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:42,397 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:42,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487020583] [2021-11-23 02:46:42,397 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:42,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137380667] [2021-11-23 02:46:42,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137380667] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:42,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:42,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:46:42,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868272754] [2021-11-23 02:46:42,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:42,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:42,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:42,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:42,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:42,404 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:45,983 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:46,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:46,319 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-23 02:46:46,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:46,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-23 02:46:46,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:46,329 INFO L225 Difference]: With dead ends: 201 [2021-11-23 02:46:46,329 INFO L226 Difference]: Without dead ends: 197 [2021-11-23 02:46:46,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:46,331 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:46,332 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-23 02:46:46,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-23 02:46:46,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-23 02:46:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:46,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-23 02:46:46,354 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-23 02:46:46,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:46,356 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-23 02:46:46,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-23 02:46:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 02:46:46,359 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:46,359 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:46,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-23 02:46:46,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-23 02:46:46,577 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:46,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:46,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1806423702, now seen corresponding path program 1 times [2021-11-23 02:46:46,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:46,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408747019] [2021-11-23 02:46:46,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:46,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:46,597 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:46,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2045327405] [2021-11-23 02:46:46,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:46,598 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:46,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:46,599 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:46,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:46:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:46,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:46:46,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:46:47,029 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:47,030 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:47,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408747019] [2021-11-23 02:46:47,030 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:47,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045327405] [2021-11-23 02:46:47,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045327405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:47,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:47,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:46:47,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202267496] [2021-11-23 02:46:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:47,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:47,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:47,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:47,034 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:47,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:47,738 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-23 02:46:47,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:47,747 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 02:46:47,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:47,749 INFO L225 Difference]: With dead ends: 344 [2021-11-23 02:46:47,749 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 02:46:47,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:47,751 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:47,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 175 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 02:46:47,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 02:46:47,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-23 02:46:47,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-23 02:46:47,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-23 02:46:47,771 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-23 02:46:47,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:47,772 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-23 02:46:47,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-23 02:46:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 02:46:47,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:47,776 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:47,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:48,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:48,005 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:48,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:48,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1808435595, now seen corresponding path program 1 times [2021-11-23 02:46:48,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:48,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005734253] [2021-11-23 02:46:48,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:48,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:48,027 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:48,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1453146891] [2021-11-23 02:46:48,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:48,028 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:48,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:48,029 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:48,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:46:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:49,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:46:49,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:46:49,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:46:49,564 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:49,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005734253] [2021-11-23 02:46:49,565 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:49,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453146891] [2021-11-23 02:46:49,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453146891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:46:49,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:46:49,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:46:49,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332867289] [2021-11-23 02:46:49,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:46:49,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:46:49,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:46:49,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:46:49,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:46:49,568 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:52,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:46:52,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:46:52,249 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-23 02:46:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:46:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 02:46:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:46:52,271 INFO L225 Difference]: With dead ends: 381 [2021-11-23 02:46:52,272 INFO L226 Difference]: Without dead ends: 201 [2021-11-23 02:46:52,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:46:52,274 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:46:52,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-23 02:46:52,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-23 02:46:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-23 02:46:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-23 02:46:52,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-23 02:46:52,302 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-23 02:46:52,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:46:52,302 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-23 02:46:52,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 02:46:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-23 02:46:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 02:46:52,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:46:52,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:46:52,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:46:52,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:52,520 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:46:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:46:52,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1272133155, now seen corresponding path program 1 times [2021-11-23 02:46:52,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:46:52,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071481529] [2021-11-23 02:46:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:52,522 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:46:52,536 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:46:52,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1205973929] [2021-11-23 02:46:52,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:46:52,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:46:52,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:46:52,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:46:52,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e13ea829-1cdc-4ad5-a88c-c959d4166eba/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:46:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:46:54,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 02:46:54,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:46:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:46:54,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:46:54,620 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 02:46:54,621 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:46:54,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071481529] [2021-11-23 02:46:54,621 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:46:54,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205973929] [2021-11-23 02:46:54,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205973929] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:46:54,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [44421511] [2021-11-23 02:46:54,646 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 02:46:54,646 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:46:54,651 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:46:54,657 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:46:54,658 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:46:54,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:46:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,830 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:46:54,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-23 02:46:54,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,850 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 02:46:54,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,862 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 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 02:46:54,871 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 15 treesize of output 1 [2021-11-23 02:46:54,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,956 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:46:54,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 02:46:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:54,989 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 52 treesize of output 49 [2021-11-23 02:46:55,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,034 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 02:46:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,051 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 02:46:55,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:46:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,496 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 02:46:55,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 02:46:55,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,559 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 74 treesize of output 76 [2021-11-23 02:46:55,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,592 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 02:46:55,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,633 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 02:46:55,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,658 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 02:46:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 02:46:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 02:46:55,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,828 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 02:46:55,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,859 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 110 treesize of output 115 [2021-11-23 02:46:55,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,937 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 02:46:55,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 127 treesize of output 138 [2021-11-23 02:46:55,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:55,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,035 INFO L354 Elim1Store]: treesize reduction 200, result has 11.5 percent of original size [2021-11-23 02:46:56,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 126 treesize of output 132 [2021-11-23 02:46:56,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 02:46:56,208 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 02:46:56,215 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 02:46:56,221 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 02:46:56,271 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:46:56,271 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 02:46:56,303 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 02:46:56,304 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 02:46:56,329 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:46:56,329 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 02:46:56,359 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 02:46:56,365 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 02:46:56,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:46:56,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 02:46:56,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,465 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 78 treesize of output 30 [2021-11-23 02:46:56,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,493 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 46 treesize of output 16 [2021-11-23 02:46:56,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,648 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 46 treesize of output 16 [2021-11-23 02:46:56,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 02:46:56,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:46:56,706 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 78 treesize of output 30 [2021-11-23 02:47:03,511 WARN L227 SmtUtils]: Spent 6.71s 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 02:47:03,512 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:47:03,513 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 2851 treesize of output 2328 [2021-11-23 02:47:03,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:14,087 WARN L227 SmtUtils]: Spent 10.53s 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 02:47:14,088 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:47:14,089 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 2952 treesize of output 2670 [2021-11-23 02:47:26,856 WARN L227 SmtUtils]: Spent 12.58s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 02:47:26,858 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 02:47:26,859 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 2856 treesize of output 2686 [2021-11-23 02:47:27,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:27,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,109 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 02:47:28,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25968 [2021-11-23 02:47:28,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:28,721 INFO L354 Elim1Store]: treesize reduction 172, result has 15.3 percent of original size [2021-11-23 02:47:28,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25953 treesize of output 25968 [2021-11-23 02:47:29,494 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:29,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,676 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 02:47:29,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-23 02:47:29,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:29,977 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:29,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 53 treesize of output 63 [2021-11-23 02:47:30,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:30,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:30,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,426 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:30,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:30,558 INFO L244 Elim1Store]: Index analysis took 183 ms [2021-11-23 02:47:30,640 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:47:30,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-23 02:47:30,891 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:30,949 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,090 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,146 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,270 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,330 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,632 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:31,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:31,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:31,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:31,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-23 02:47:32,098 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:32,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,413 INFO L244 Elim1Store]: Index analysis took 160 ms [2021-11-23 02:47:32,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-23 02:47:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,709 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,720 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:32,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:32,783 INFO L244 Elim1Store]: Index analysis took 118 ms [2021-11-23 02:47:32,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-23 02:47:33,166 INFO L244 Elim1Store]: Index analysis took 217 ms [2021-11-23 02:47:35,792 INFO L354 Elim1Store]: treesize reduction 491, result has 73.5 percent of original size [2021-11-23 02:47:35,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4012 [2021-11-23 02:47:37,957 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:38,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:38,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:38,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:38,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:38,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:38,297 INFO L244 Elim1Store]: Index analysis took 128 ms [2021-11-23 02:47:38,615 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-23 02:47:38,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-23 02:47:39,529 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:39,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:39,696 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:39,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:39,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:40,412 INFO L354 Elim1Store]: treesize reduction 430, result has 62.7 percent of original size [2021-11-23 02:47:40,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3370 [2021-11-23 02:47:40,755 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:40,873 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:47:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:40,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:40,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:40,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-23 02:47:41,124 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:41,192 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:41,316 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:41,372 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:42,534 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:42,618 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:42,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:42,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-23 02:47:42,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:43,016 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 02:47:43,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 38 treesize of output 32 [2021-11-23 02:47:43,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:47:43,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-23 02:47:43,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:44,797 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:45,626 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:45,746 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:45,989 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:46,274 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:46,478 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:46,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:47:48,014 INFO L190 IndexEqualityManager]: detected not equals via solver