./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7 --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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:12:49,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:12:49,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:12:49,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:12:49,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:12:49,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:12:49,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:12:49,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:12:49,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:12:49,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:12:49,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:12:49,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:12:49,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:12:49,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:12:49,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:12:49,821 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:12:49,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:12:49,824 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:12:49,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:12:49,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:12:49,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:12:49,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:12:49,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:12:49,844 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:12:49,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:12:49,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:12:49,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:12:49,850 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:12:49,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:12:49,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:12:49,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:12:49,854 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:12:49,856 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:12:49,857 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:12:49,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:12:49,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:12:49,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:12:49,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:12:49,860 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:12:49,861 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:12:49,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:12:49,863 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:12:49,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:12:49,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:12:49,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:12:49,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:12:49,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:12:49,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:12:49,915 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:12:49,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:12:49,916 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:12:49,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:12:49,916 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:12:49,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:12:49,916 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:12:49,917 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:12:49,917 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:12:49,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:12:49,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:12:49,917 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:12:49,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:12:49,918 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:12:49,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:12:49,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:12:49,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:12:49,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:12:49,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:12:49,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:12:49,920 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:12:49,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:12:49,920 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:12:49,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:12:49,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:12:49,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:12:49,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:12:49,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:12:49,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:12:49,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:12:49,922 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:12:49,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:12:49,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:12:49,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:12:49,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:12:49,923 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_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2021-11-25 20:12:50,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:12:50,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:12:50,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:12:50,265 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:12:50,265 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:12:50,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-25 20:12:50,325 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/data/1afcf6c31/d67b1cf30dc243fb9b2208ce7adf698f/FLAG2ff07947d [2021-11-25 20:12:50,925 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:12:50,925 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2021-11-25 20:12:50,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/data/1afcf6c31/d67b1cf30dc243fb9b2208ce7adf698f/FLAG2ff07947d [2021-11-25 20:12:51,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/data/1afcf6c31/d67b1cf30dc243fb9b2208ce7adf698f [2021-11-25 20:12:51,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:12:51,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:12:51,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:12:51,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:12:51,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:12:51,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:12:51" (1/1) ... [2021-11-25 20:12:51,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cef353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:51, skipping insertion in model container [2021-11-25 20:12:51,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:12:51" (1/1) ... [2021-11-25 20:12:51,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:12:51,232 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:12:51,619 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_40d7ce0b-da25-4ad2-a018-30d64988aea9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-25 20:12:51,763 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_40d7ce0b-da25-4ad2-a018-30d64988aea9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-25 20:12:51,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:12:51,790 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:12:51,839 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_40d7ce0b-da25-4ad2-a018-30d64988aea9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[33021,33034] [2021-11-25 20:12:51,904 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_40d7ce0b-da25-4ad2-a018-30d64988aea9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i[44590,44603] [2021-11-25 20:12:51,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:12:52,010 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:12:52,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52 WrapperNode [2021-11-25 20:12:52,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:12:52,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:12:52,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:12:52,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:12:52,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,151 INFO L137 Inliner]: procedures = 177, calls = 285, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1026 [2021-11-25 20:12:52,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:12:52,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:12:52,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:12:52,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:12:52,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:12:52,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:12:52,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:12:52,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:12:52,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (1/1) ... [2021-11-25 20:12:52,326 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:12:52,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:12:52,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:12:52,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:12:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:12:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:12:52,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:12:52,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:12:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:12:52,409 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:12:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:12:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:12:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:12:52,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:12:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:12:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:12:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:12:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:12:52,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:12:52,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:12:52,624 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:12:52,626 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:12:53,618 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:12:53,914 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:12:53,914 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 20:12:53,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:12:53 BoogieIcfgContainer [2021-11-25 20:12:53,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:12:53,919 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:12:53,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:12:53,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:12:53,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:12:51" (1/3) ... [2021-11-25 20:12:53,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f06e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:12:53, skipping insertion in model container [2021-11-25 20:12:53,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:12:52" (2/3) ... [2021-11-25 20:12:53,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@372f06e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:12:53, skipping insertion in model container [2021-11-25 20:12:53,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:12:53" (3/3) ... [2021-11-25 20:12:53,924 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-1.i [2021-11-25 20:12:53,929 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:12:53,930 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:12:53,976 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:12:53,983 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 [2021-11-25 20:12:53,983 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:12:54,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:12:54,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:12:54,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:54,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:54,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:12:54,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:54,013 INFO L85 PathProgramCache]: Analyzing trace with hash -957118725, now seen corresponding path program 1 times [2021-11-25 20:12:54,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:54,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320158586] [2021-11-25 20:12:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:54,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:54,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:54,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:12:54,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:54,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320158586] [2021-11-25 20:12:54,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320158586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:54,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:54,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:12:54,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778674324] [2021-11-25 20:12:54,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:54,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:12:54,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:54,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:12:54,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:12:54,205 INFO L87 Difference]: Start difference. First operand has 123 states, 110 states have (on average 1.8) internal successors, (198), 117 states have internal predecessors, (198), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:54,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:54,961 INFO L93 Difference]: Finished difference Result 245 states and 432 transitions. [2021-11-25 20:12:54,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:12:54,973 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:12:54,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:54,983 INFO L225 Difference]: With dead ends: 245 [2021-11-25 20:12:54,984 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 20:12:54,987 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 [2021-11-25 20:12:54,991 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:54,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:12:55,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 20:12:55,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 20:12:55,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:12:55,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 20:12:55,062 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 20:12:55,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:55,063 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 20:12:55,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:55,063 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 20:12:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:12:55,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:55,067 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:12:55,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:12:55,068 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:12:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:55,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1851937168, now seen corresponding path program 1 times [2021-11-25 20:12:55,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:55,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055870923] [2021-11-25 20:12:55,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:55,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:55,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:55,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:12:55,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:55,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055870923] [2021-11-25 20:12:55,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055870923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:55,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:55,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:12:55,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328658277] [2021-11-25 20:12:55,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:55,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:55,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:55,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:55,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:55,185 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:56,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:56,204 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 20:12:56,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:12:56,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 20:12:56,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:56,213 INFO L225 Difference]: With dead ends: 258 [2021-11-25 20:12:56,213 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 20:12:56,214 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 [2021-11-25 20:12:56,216 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:56,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-25 20:12:56,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 20:12:56,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 20:12:56,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:12:56,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 20:12:56,235 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 20:12:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:56,235 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 20:12:56,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:56,236 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 20:12:56,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:12:56,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:56,238 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, 1, 1, 1, 1] [2021-11-25 20:12:56,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:12:56,238 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:12:56,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:56,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1227120832, now seen corresponding path program 1 times [2021-11-25 20:12:56,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324020470] [2021-11-25 20:12:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:56,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:56,385 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:12:56,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [40020143] [2021-11-25 20:12:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:56,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:12:56,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:12:56,388 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:12:56,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:12:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:57,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:12:57,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:12:57,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:12:57,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:12:57,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:57,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324020470] [2021-11-25 20:12:57,214 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:12:57,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40020143] [2021-11-25 20:12:57,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40020143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:57,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:57,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:12:57,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039017750] [2021-11-25 20:12:57,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:57,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:12:57,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:57,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:12:57,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:12:57,218 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:58,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:12:58,389 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 20:12:58,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:12:58,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 20:12:58,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:12:58,397 INFO L225 Difference]: With dead ends: 304 [2021-11-25 20:12:58,397 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 20:12:58,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:12:58,400 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:12:58,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 20:12:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 20:12:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 20:12:58,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:12:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 20:12:58,418 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 20:12:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:12:58,418 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 20:12:58,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:12:58,419 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 20:12:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:12:58,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:12:58,421 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] [2021-11-25 20:12:58,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:12:58,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:12:58,639 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:12:58,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:12:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2111487482, now seen corresponding path program 1 times [2021-11-25 20:12:58,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:12:58,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197525533] [2021-11-25 20:12:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:58,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:12:58,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:12:58,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1937486157] [2021-11-25 20:12:58,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:12:58,712 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:12:58,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:12:58,713 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:12:58,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:12:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:12:59,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:12:59,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:12:59,273 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 [2021-11-25 20:12:59,287 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 [2021-11-25 20:12:59,303 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:12:59,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:12:59,304 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:12:59,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197525533] [2021-11-25 20:12:59,304 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:12:59,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937486157] [2021-11-25 20:12:59,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937486157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:12:59,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:12:59,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:12:59,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498725918] [2021-11-25 20:12:59,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:12:59,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:12:59,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:12:59,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:12:59,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:12:59,307 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:13:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:00,874 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 20:13:00,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:13:00,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 20:13:00,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:00,882 INFO L225 Difference]: With dead ends: 231 [2021-11-25 20:13:00,883 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 20:13:00,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:13:00,884 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:00,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:13:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 20:13:00,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 20:13:00,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:13:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 20:13:00,938 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 20:13:00,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:00,938 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 20:13:00,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:13:00,939 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 20:13:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:13:00,941 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:00,941 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] [2021-11-25 20:13:00,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:01,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:01,142 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:13:01,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:01,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1926488172, now seen corresponding path program 1 times [2021-11-25 20:13:01,143 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:01,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716170161] [2021-11-25 20:13:01,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:01,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:01,196 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:13:01,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1182860081] [2021-11-25 20:13:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:01,196 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:01,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:01,197 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:01,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:13:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:01,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:13:01,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:01,792 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:13:01,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:13:01,793 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:01,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716170161] [2021-11-25 20:13:01,793 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:13:01,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182860081] [2021-11-25 20:13:01,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182860081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:01,794 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:01,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:01,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076794426] [2021-11-25 20:13:01,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:01,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:01,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:01,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:01,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:01,796 INFO L87 Difference]: Start difference. First operand 169 states and 203 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) [2021-11-25 20:13:02,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:02,520 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 20:13:02,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:13:02,521 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 [2021-11-25 20:13:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:02,524 INFO L225 Difference]: With dead ends: 395 [2021-11-25 20:13:02,524 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 20:13:02,525 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 [2021-11-25 20:13:02,526 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:02,526 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:13:02,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 20:13:02,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 20:13:02,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:13:02,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 20:13:02,543 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 20:13:02,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:02,544 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 20:13:02,544 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) [2021-11-25 20:13:02,544 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 20:13:02,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:13:02,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:02,547 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] [2021-11-25 20:13:02,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:13:02,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:02,786 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:13:02,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:02,786 INFO L85 PathProgramCache]: Analyzing trace with hash 798103091, now seen corresponding path program 1 times [2021-11-25 20:13:02,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:02,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550620052] [2021-11-25 20:13:02,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:02,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:02,831 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:13:02,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464728733] [2021-11-25 20:13:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:02,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:02,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:02,833 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:02,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:13:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:13:04,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:13:04,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:13:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:13:04,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:13:04,270 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:13:04,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550620052] [2021-11-25 20:13:04,270 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:13:04,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464728733] [2021-11-25 20:13:04,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464728733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:13:04,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:13:04,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:13:04,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597463017] [2021-11-25 20:13:04,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:13:04,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:13:04,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:13:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:13:04,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:13:04,272 INFO L87 Difference]: Start difference. First operand 214 states and 257 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) [2021-11-25 20:13:05,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:13:05,707 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 20:13:05,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:13:05,718 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 [2021-11-25 20:13:05,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:13:05,720 INFO L225 Difference]: With dead ends: 411 [2021-11-25 20:13:05,720 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 20:13:05,721 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 [2021-11-25 20:13:05,722 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:13:05,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:13:05,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 20:13:05,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 20:13:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 20:13:05,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 20:13:05,738 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 20:13:05,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:13:05,739 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 20:13:05,739 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) [2021-11-25 20:13:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 20:13:05,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:13:05,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:13:05,752 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] [2021-11-25 20:13:05,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 20:13:05,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 20:13:05,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:13:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:13:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash -320971085, now seen corresponding path program 1 times [2021-11-25 20:13:05,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:13:05,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312199804] [2021-11-25 20:13:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:05,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:13:06,050 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:13:06,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009180312] [2021-11-25 20:13:06,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:13:06,059 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:13:06,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:06,062 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:13:06,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_40d7ce0b-da25-4ad2-a018-30d64988aea9/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:14:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:00,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 20:14:00,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:00,239 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:14:00,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:00,448 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:14:00,448 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312199804] [2021-11-25 20:14:00,449 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009180312] [2021-11-25 20:14:00,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009180312] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1075007694] [2021-11-25 20:14:00,470 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 20:14:00,471 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:14:00,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:14:00,480 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:14:00,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:14:00,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 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 [2021-11-25 20:14:00,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,633 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:14:00,634 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 [2021-11-25 20:14:00,646 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 [2021-11-25 20:14:00,652 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 [2021-11-25 20:14:00,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,663 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 [2021-11-25 20:14:00,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,734 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:14:00,735 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 [2021-11-25 20:14:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,752 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 [2021-11-25 20:14:00,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,781 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 [2021-11-25 20:14:00,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,817 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 [2021-11-25 20:14:00,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:00,832 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 [2021-11-25 20:14:01,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,193 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 76 treesize of output 64 [2021-11-25 20:14:01,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,217 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 [2021-11-25 20:14:01,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,240 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 [2021-11-25 20:14:01,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,264 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 [2021-11-25 20:14:01,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,326 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 [2021-11-25 20:14:01,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,353 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 75 treesize of output 77 [2021-11-25 20:14:01,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,372 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 [2021-11-25 20:14:01,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,388 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 [2021-11-25 20:14:01,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 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 [2021-11-25 20:14:01,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,520 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 20:14:01,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 20:14:01,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 20:14:01,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,573 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 [2021-11-25 20:14:01,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,612 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 75 treesize of output 77 [2021-11-25 20:14:01,730 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 [2021-11-25 20:14:01,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:14:01,739 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 [2021-11-25 20:14:01,791 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:14:01,791 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 57 treesize of output 60 [2021-11-25 20:14:01,818 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:14:01,818 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 51 treesize of output 54 [2021-11-25 20:14:01,846 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:14:01,846 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 47 treesize of output 50 [2021-11-25 20:14:01,883 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 [2021-11-25 20:14:01,891 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 [2021-11-25 20:14:01,896 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 [2021-11-25 20:14:01,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,966 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 [2021-11-25 20:14:01,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:01,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:14:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:14:02,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,130 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 [2021-11-25 20:14:02,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:14:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:02,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:14:08,192 WARN L227 SmtUtils]: Spent 5.88s 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) [2021-11-25 20:14:08,193 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:14:08,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 20:14:08,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,343 WARN L227 SmtUtils]: Spent 8.03s 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) [2021-11-25 20:14:16,343 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:14:16,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 20:14:16,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:17,033 INFO L244 Elim1Store]: Index analysis took 437 ms [2021-11-25 20:14:25,771 WARN L227 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:14:25,772 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 20:14:25,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 20:14:26,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:26,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:26,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:26,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:26,436 INFO L244 Elim1Store]: Index analysis took 216 ms [2021-11-25 20:14:27,155 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:14:27,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 20:14:27,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:27,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:27,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:27,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:27,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 20:14:27,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,088 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 20:14:28,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 20:14:28,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,502 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:14:28,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 20:14:28,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:28,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:28,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:14:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,813 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:14:28,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 20 [2021-11-25 20:14:28,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:28,914 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:28,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 20:14:28,953 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:28,985 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:29,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:29,696 INFO L354 Elim1Store]: treesize reduction 20, result has 62.3 percent of original size [2021-11-25 20:14:29,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 73 treesize of output 83 [2021-11-25 20:14:29,805 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:29,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:29,882 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:29,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-25 20:14:30,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:30,816 INFO L244 Elim1Store]: Index analysis took 127 ms [2021-11-25 20:14:32,612 INFO L354 Elim1Store]: treesize reduction 15, result has 99.2 percent of original size [2021-11-25 20:14:32,613 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 3149 treesize of output 4526 [2021-11-25 20:14:33,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:33,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:33,442 INFO L244 Elim1Store]: Index analysis took 105 ms [2021-11-25 20:14:33,605 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 20:14:33,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3165 treesize of output 1 [2021-11-25 20:14:33,647 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:33,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:33,940 INFO L244 Elim1Store]: Index analysis took 210 ms [2021-11-25 20:14:36,575 INFO L354 Elim1Store]: treesize reduction 39, result has 97.9 percent of original size [2021-11-25 20:14:36,576 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 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4630 [2021-11-25 20:14:38,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:38,441 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:38,485 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:38,530 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:38,606 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:41,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,396 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:14:41,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3088 treesize of output 2890 [2021-11-25 20:14:41,492 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,639 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,718 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,863 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:41,961 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-25 20:14:42,041 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:14:42,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3188 treesize of output 2984 [2021-11-25 20:14:42,099 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:42,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:42,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,365 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,474 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 20:14:42,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3072 treesize of output 1 [2021-11-25 20:14:43,880 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,924 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,965 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:44,027 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:44,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,115 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 20:14:44,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,257 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 20:14:44,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 20:14:44,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,318 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 20:14:45,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3128 treesize of output 3414 [2021-11-25 20:14:45,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:45,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,677 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-25 20:14:46,256 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 20:14:46,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 20:14:46,357 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:46,409 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:46,450 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:46,525 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:46,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:46,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:46,813 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 20:14:46,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 20:14:47,544 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:47,594 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:47,628 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:47,675 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:47,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:47,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 20:14:47,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:47,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3067 treesize of output 2697 [2021-11-25 20:14:48,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:48,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3051 treesize of output 2687 [2021-11-25 20:14:48,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,498 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:48,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:48,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,594 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-25 20:14:48,612 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 20:14:48,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3128 treesize of output 2690 [2021-11-25 20:14:48,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:48,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:48,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:48,919 INFO L244 Elim1Store]: Index analysis took 141 ms [2021-11-25 20:14:48,935 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 20:14:48,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3244 treesize of output 2794 [2021-11-25 20:14:48,997 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:49,060 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:49,101 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:49,187 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:49,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:49,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:49,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:49,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:49,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:49,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:49,411 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 20:14:49,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3144 treesize of output 2700 [2021-11-25 20:14:51,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,241 INFO L244 Elim1Store]: Index analysis took 287 ms [2021-11-25 20:14:56,559 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 20:14:56,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 137218 treesize of output 137340 [2021-11-25 20:23:40,678 WARN L227 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 3651 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)