./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P --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 a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:32:10,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:32:10,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:32:10,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:32:10,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:32:10,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:32:10,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:32:10,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:32:10,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:32:10,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:32:10,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:32:10,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:32:10,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:32:10,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:32:10,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:32:10,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:32:10,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:32:10,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:32:10,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:32:10,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:32:10,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:32:10,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:32:10,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:32:10,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:32:10,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:32:10,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:32:10,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:32:10,761 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:32:10,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:32:10,763 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:32:10,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:32:10,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:32:10,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:32:10,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:32:10,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:32:10,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:32:10,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:32:10,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:32:10,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:32:10,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:32:10,774 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:32:10,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:32:10,823 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:32:10,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:32:10,824 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:32:10,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:32:10,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:32:10,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:32:10,832 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:32:10,832 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:32:10,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:32:10,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:32:10,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:32:10,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:32:10,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:32:10,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:32:10,835 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:32:10,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:32:10,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:32:10,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:32:10,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:32:10,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:32:10,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:32:10,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:32:10,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:32:10,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:32:10,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:32:10,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:32:10,840 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:32:10,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:32:10,841 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:32:10,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:32:10,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:32:10,842 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:32:10,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:32:10,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:32:10,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:32:10,843 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:32:10,843 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:32:10,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:32:10,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:32:10,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:32:10,844 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:32:10,844 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_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a2f43006c9a8080eee594d7c3e874c7ea5bb3a923f26b30531e1d07ef5cff7d9 [2021-11-21 01:32:11,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:32:11,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:32:11,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:32:11,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:32:11,201 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:32:11,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-21 01:32:11,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/data/1a7991168/1e6df98b593044bb9128b45eeeb9f018/FLAG4bac7fa39 [2021-11-21 01:32:11,941 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:32:11,942 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i [2021-11-21 01:32:11,964 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/data/1a7991168/1e6df98b593044bb9128b45eeeb9f018/FLAG4bac7fa39 [2021-11-21 01:32:12,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/data/1a7991168/1e6df98b593044bb9128b45eeeb9f018 [2021-11-21 01:32:12,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:32:12,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:32:12,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:32:12,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:32:12,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:32:12,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:12,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364848de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12, skipping insertion in model container [2021-11-21 01:32:12,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:12,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:32:12,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:32:12,661 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_0880e5cb-428d-4ff3-b0da-b118b39bb50e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-21 01:32:12,735 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:32:12,744 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:32:12,776 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_0880e5cb-428d-4ff3-b0da-b118b39bb50e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test1-1.i[33021,33034] [2021-11-21 01:32:12,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:32:12,895 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:32:12,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12 WrapperNode [2021-11-21 01:32:12,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:32:12,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:32:12,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:32:12,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:32:12,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:12,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,030 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-21 01:32:13,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:32:13,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:32:13,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:32:13,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:32:13,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:32:13,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:32:13,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:32:13,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:32:13,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (1/1) ... [2021-11-21 01:32:13,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:32:13,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:32:13,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:32:13,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:32:13,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:32:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:32:13,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:32:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:32:13,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:32:13,239 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:32:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:32:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:32:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:32:13,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:32:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:32:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:32:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:32:13,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:32:13,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:32:13,482 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:32:13,484 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:32:14,453 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:32:14,727 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:32:14,727 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-21 01:32:14,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:32:14 BoogieIcfgContainer [2021-11-21 01:32:14,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:32:14,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:32:14,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:32:14,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:32:14,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:32:12" (1/3) ... [2021-11-21 01:32:14,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b12a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:32:14, skipping insertion in model container [2021-11-21 01:32:14,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:32:12" (2/3) ... [2021-11-21 01:32:14,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b12a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:32:14, skipping insertion in model container [2021-11-21 01:32:14,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:32:14" (3/3) ... [2021-11-21 01:32:14,740 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test1-1.i [2021-11-21 01:32:14,747 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:32:14,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:32:14,794 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:32:14,803 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 [2021-11-21 01:32:14,803 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:32:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:32:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:32:14,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:32:14,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:32:14,835 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:32:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:32:14,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-21 01:32:14,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:32:14,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141033872] [2021-11-21 01:32:14,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:14,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:32:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:32:15,020 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:15,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141033872] [2021-11-21 01:32:15,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141033872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:32:15,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:32:15,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:32:15,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403041245] [2021-11-21 01:32:15,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:32:15,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:32:15,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:32:15,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:32:15,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:32:15,066 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:32:16,558 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:32:16,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:32:16,562 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-21 01:32:16,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:32:16,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:32:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:32:16,594 INFO L225 Difference]: With dead ends: 209 [2021-11-21 01:32:16,594 INFO L226 Difference]: Without dead ends: 128 [2021-11-21 01:32:16,598 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:32:16,602 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:32:16,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:32:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-21 01:32:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-21 01:32:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:32:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-21 01:32:16,656 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-21 01:32:16,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:32:16,656 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-21 01:32:16,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:32:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-21 01:32:16,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:32:16,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:32:16,660 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:32:16,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:32:16,660 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:32:16,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:32:16,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-21 01:32:16,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:32:16,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464219594] [2021-11-21 01:32:16,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:16,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:32:16,680 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:32:16,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120837916] [2021-11-21 01:32:16,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:16,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:16,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:32:16,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:32:16,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:32:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:16,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:32:16,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:32:17,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:32:17,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:32:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:32:17,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:17,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464219594] [2021-11-21 01:32:17,171 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:32:17,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120837916] [2021-11-21 01:32:17,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120837916] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:32:17,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1602111500] [2021-11-21 01:32:17,205 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-21 01:32:17,205 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:32:17,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:32:17,218 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:32:17,220 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:32:17,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:17,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:32:17,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:17,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:32:17,499 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:32:17,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:32:17,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:17,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:32:17,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:17,551 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:32:17,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:32:17,634 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:32:17,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:32:18,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:18,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:19,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:32:19,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:19,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:32:20,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:32:20,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:32:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:20,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:20,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:20,319 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:32:20,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1602111500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:32:20,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:32:20,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-21 01:32:20,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568541221] [2021-11-21 01:32:20,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:32:20,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:32:20,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:32:20,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:32:20,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:32:20,893 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:32:23,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:32:23,181 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-21 01:32:23,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:32:23,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-21 01:32:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:32:23,194 INFO L225 Difference]: With dead ends: 173 [2021-11-21 01:32:23,194 INFO L226 Difference]: Without dead ends: 94 [2021-11-21 01:32:23,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:32:23,197 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:32:23,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 01:32:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-21 01:32:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-21 01:32:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:32:23,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-21 01:32:23,213 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-21 01:32:23,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:32:23,214 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-21 01:32:23,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:32:23,214 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 01:32:23,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:32:23,216 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:32:23,216 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:32:23,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:32:23,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:23,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:32:23,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:32:23,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-21 01:32:23,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:32:23,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503968479] [2021-11-21 01:32:23,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:23,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:32:23,456 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:32:23,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859870064] [2021-11-21 01:32:23,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:23,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:23,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:32:23,458 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:32:23,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:32:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:23,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:32:23,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:32:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:32:23,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:32:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:32:23,968 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:23,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503968479] [2021-11-21 01:32:23,969 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:32:23,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859870064] [2021-11-21 01:32:23,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859870064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:32:23,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [498434538] [2021-11-21 01:32:23,973 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:32:23,974 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:32:23,974 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:32:23,975 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:32:23,975 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:32:24,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:24,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:32:24,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:24,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:32:24,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:24,084 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:32:24,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:32:24,140 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:32:24,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:32:24,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:24,186 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 [2021-11-21 01:32:24,197 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 [2021-11-21 01:32:25,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:32:25,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:32:25,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:32:25,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:25,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:25,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:32:25,834 INFO L354 Elim1Store]: treesize reduction 94, result has 14.5 percent of original size [2021-11-21 01:32:25,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:32:25,908 INFO L354 Elim1Store]: treesize reduction 184, result has 10.2 percent of original size [2021-11-21 01:32:25,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:32:26,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-21 01:32:26,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:26,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:32:28,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:32:28,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:32:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:28,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-21 01:32:28,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:32:28,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:32:28,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:28,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-21 01:32:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,719 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:32:28,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:32:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:32:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,852 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:32:28,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:32:28,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:28,902 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:32:28,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:32:29,180 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-21 01:32:29,353 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:32:30,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [498434538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:32:30,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:32:30,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-21 01:32:30,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181192223] [2021-11-21 01:32:30,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:32:30,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:32:30,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:32:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:32:30,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:32:30,522 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:32:32,821 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:32:35,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:32:35,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:32:35,743 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-21 01:32:35,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:32:35,767 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-21 01:32:35,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:32:35,769 INFO L225 Difference]: With dead ends: 175 [2021-11-21 01:32:35,769 INFO L226 Difference]: Without dead ends: 96 [2021-11-21 01:32:35,770 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:32:35,771 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:32:35,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 103 Invalid, 2 Unknown, 53 Unchecked, 5.2s Time] [2021-11-21 01:32:35,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-21 01:32:35,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-21 01:32:35,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:32:35,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-21 01:32:35,789 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-21 01:32:35,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:32:35,790 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-21 01:32:35,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:32:35,790 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-21 01:32:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:32:35,792 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:32:35,792 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:32:35,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:32:36,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:36,008 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:32:36,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:32:36,009 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-21 01:32:36,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:32:36,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103688361] [2021-11-21 01:32:36,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:36,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:32:36,033 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:32:36,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1046277593] [2021-11-21 01:32:36,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:32:36,033 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:32:36,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:32:36,034 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:32:36,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0880e5cb-428d-4ff3-b0da-b118b39bb50e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:32:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:32:36,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:32:36,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:32:36,343 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:32:36,343 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:32:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:32:36,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:32:36,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103688361] [2021-11-21 01:32:36,474 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:32:36,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046277593] [2021-11-21 01:32:36,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046277593] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:32:36,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [601452610] [2021-11-21 01:32:36,478 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:32:36,479 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:32:36,479 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:32:36,480 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:32:36,480 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:32:36,586 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:32:36,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:32:36,643 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 [2021-11-21 01:32:36,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:36,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:32:36,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:36,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:32:36,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-21 01:32:36,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:36,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:32:37,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:32:37,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:32:37,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:32:37,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:32:37,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:32:37,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:37,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:38,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:32:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,128 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:32:38,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:32:38,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-21 01:32:38,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,341 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:32:38,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:32:38,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,403 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:32:38,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:32:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:38,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 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 [2021-11-21 01:32:38,912 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 [2021-11-21 01:32:38,920 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 [2021-11-21 01:32:38,927 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 [2021-11-21 01:32:38,982 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:32:38,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-21 01:32:39,011 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:32:39,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-21 01:32:39,026 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:32:39,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-21 01:32:39,080 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 [2021-11-21 01:32:39,089 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 [2021-11-21 01:32:39,103 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 [2021-11-21 01:32:39,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:32:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:32:39,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:32:39,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 01:32:39,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:32:39,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:32:39,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 01:32:50,179 WARN L227 SmtUtils]: Spent 10.40s 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) [2021-11-21 01:32:50,180 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:32:50,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-21 01:32:50,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:33:00,343 WARN L227 SmtUtils]: Spent 10.13s 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) [2021-11-21 01:33:00,344 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:33:00,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-21 01:33:13,103 WARN L227 SmtUtils]: Spent 12.65s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:33:13,104 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:33:13,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-21 01:33:15,104 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:33:15,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:33:15,898 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:33:15,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:33:17,787 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:33:18,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:33:18,327 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:33:18,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:33:18,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:33:19,007 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:33:19,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46