./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:48:43,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:48:43,739 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:48:43,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:48:43,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:48:43,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:48:43,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:48:43,802 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:48:43,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:48:43,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:48:43,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:48:43,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:48:43,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:48:43,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:48:43,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:48:43,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:48:43,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:48:43,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:48:43,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:48:43,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:48:43,825 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:48:43,826 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:48:43,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:48:43,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:48:43,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:48:43,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:48:43,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:48:43,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:48:43,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:48:43,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:48:43,836 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:48:43,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:48:43,837 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:48:43,838 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:48:43,839 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:48:43,839 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:48:43,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:48:43,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:48:43,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:48:43,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:48:43,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:48:43,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:48:43,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:48:43,870 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:48:43,871 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:48:43,871 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:48:43,872 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:48:43,872 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:48:43,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:48:43,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:48:43,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:48:43,873 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:48:43,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:48:43,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:48:43,873 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:48:43,873 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:48:43,874 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:48:43,874 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:48:43,874 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:48:43,874 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:48:43,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:48:43,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:48:43,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:48:43,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:48:43,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:48:43,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:48:43,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:48:43,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:48:43,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:48:43,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:48:43,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:48:43,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:48:43,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:48:43,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:48:43,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:48:43,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:48:43,878 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:48:43,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:48:43,880 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_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2021-11-23 03:48:44,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:48:44,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:48:44,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:48:44,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:48:44,130 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:48:44,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-23 03:48:44,217 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/data/a7cb529e5/cbe2b6933ae14ee580230e026981ea59/FLAGd0e410727 [2021-11-23 03:48:44,814 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:48:44,820 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-23 03:48:44,851 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/data/a7cb529e5/cbe2b6933ae14ee580230e026981ea59/FLAGd0e410727 [2021-11-23 03:48:45,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/data/a7cb529e5/cbe2b6933ae14ee580230e026981ea59 [2021-11-23 03:48:45,053 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:48:45,055 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:48:45,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:48:45,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:48:45,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:48:45,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:45,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f2e549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45, skipping insertion in model container [2021-11-23 03:48:45,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:45,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:48:45,119 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:48:45,527 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_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-23 03:48:45,620 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_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-23 03:48:45,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:48:45,645 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:48:45,673 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_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-23 03:48:45,767 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_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-23 03:48:45,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:48:45,857 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:48:45,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45 WrapperNode [2021-11-23 03:48:45,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:48:45,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:48:45,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:48:45,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:48:45,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:45,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,046 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-23 03:48:46,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:48:46,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:48:46,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:48:46,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:48:46,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:48:46,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:48:46,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:48:46,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:48:46,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (1/1) ... [2021-11-23 03:48:46,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:48:46,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:46,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:48:46,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:48:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:48:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:48:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:48:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:48:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:48:46,350 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:48:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:48:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:48:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:48:46,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:48:46,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:48:46,568 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:48:46,570 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:48:47,730 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:48:48,189 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:48:48,189 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 03:48:48,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:48:48 BoogieIcfgContainer [2021-11-23 03:48:48,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:48:48,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:48:48,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:48:48,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:48:48,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:48:45" (1/3) ... [2021-11-23 03:48:48,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd9c462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:48:48, skipping insertion in model container [2021-11-23 03:48:48,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:48:45" (2/3) ... [2021-11-23 03:48:48,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd9c462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:48:48, skipping insertion in model container [2021-11-23 03:48:48,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:48:48" (3/3) ... [2021-11-23 03:48:48,207 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2021-11-23 03:48:48,215 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:48:48,215 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:48:48,280 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:48:48,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:48:48,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:48:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:48:48,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:48,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:48,352 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:48,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-23 03:48:48,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:48,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869393353] [2021-11-23 03:48:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:48,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:48,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:48:48,567 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:48,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869393353] [2021-11-23 03:48:48,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869393353] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:48,568 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:48,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:48:48,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884427980] [2021-11-23 03:48:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:48,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:48:48,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:48:48,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:48:48,620 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:49,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:49,176 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-23 03:48:49,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:48:49,182 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 03:48:49,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:49,191 INFO L225 Difference]: With dead ends: 273 [2021-11-23 03:48:49,192 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:48:49,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:48:49,199 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:49,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:48:49,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:48:49,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-23 03:48:49,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:49,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-23 03:48:49,250 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-23 03:48:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:49,250 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-23 03:48:49,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:49,251 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-23 03:48:49,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:48:49,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:49,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:49,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:48:49,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:49,254 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-23 03:48:49,255 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:49,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069435500] [2021-11-23 03:48:49,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:49,256 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:49,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:48:49,321 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:49,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069435500] [2021-11-23 03:48:49,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069435500] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:49,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:49,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:48:49,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942981335] [2021-11-23 03:48:49,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:49,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:49,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:49,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:49,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:49,326 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:51,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:51,004 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-23 03:48:51,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:48:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:51,016 INFO L225 Difference]: With dead ends: 258 [2021-11-23 03:48:51,016 INFO L226 Difference]: Without dead ends: 189 [2021-11-23 03:48:51,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:48:51,019 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:51,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-23 03:48:51,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-23 03:48:51,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-23 03:48:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:51,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-23 03:48:51,038 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-23 03:48:51,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:51,039 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-23 03:48:51,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:51,039 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-23 03:48:51,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 03:48:51,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:51,042 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:51,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:48:51,042 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:51,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:51,043 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-23 03:48:51,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:51,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334410225] [2021-11-23 03:48:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:51,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:51,068 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:48:51,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [923246665] [2021-11-23 03:48:51,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:51,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:51,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:51,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:51,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:48:51,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:51,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:48:51,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:51,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:48:51,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:48:51,459 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:51,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334410225] [2021-11-23 03:48:51,460 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:48:51,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [923246665] [2021-11-23 03:48:51,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [923246665] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:51,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:51,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:48:51,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510631970] [2021-11-23 03:48:51,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:51,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:48:51,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:51,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:48:51,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:48:51,463 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:52,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:52,238 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-23 03:48:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:48:52,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 03:48:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:52,250 INFO L225 Difference]: With dead ends: 304 [2021-11-23 03:48:52,250 INFO L226 Difference]: Without dead ends: 183 [2021-11-23 03:48:52,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:48:52,252 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:52,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:48:52,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-23 03:48:52,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-23 03:48:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:52,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-23 03:48:52,270 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-23 03:48:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:52,271 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-23 03:48:52,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:48:52,271 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-23 03:48:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 03:48:52,273 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:52,274 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:52,315 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:52,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:52,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:52,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:52,489 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-23 03:48:52,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:52,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543518774] [2021-11-23 03:48:52,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:52,490 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:52,508 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:48:52,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1850389845] [2021-11-23 03:48:52,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:52,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:52,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:52,511 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:52,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:48:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:52,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:48:52,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:52,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 03:48:52,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 03:48:52,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:48:52,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:48:52,873 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:52,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543518774] [2021-11-23 03:48:52,873 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:48:52,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850389845] [2021-11-23 03:48:52,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850389845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:52,874 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:52,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:52,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483701610] [2021-11-23 03:48:52,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:52,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:52,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:52,877 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:55,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:48:55,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:55,157 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-23 03:48:55,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-23 03:48:55,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:55,182 INFO L225 Difference]: With dead ends: 231 [2021-11-23 03:48:55,183 INFO L226 Difference]: Without dead ends: 212 [2021-11-23 03:48:55,183 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:48:55,184 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 58 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:55,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 354 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-23 03:48:55,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-23 03:48:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-23 03:48:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:55,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-23 03:48:55,207 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-23 03:48:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:55,208 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-23 03:48:55,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-23 03:48:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:48:55,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:55,211 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:55,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:55,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:55,437 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:55,437 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-23 03:48:55,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817238365] [2021-11-23 03:48:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:55,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:55,468 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:48:55,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [968727225] [2021-11-23 03:48:55,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:55,468 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:55,469 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:55,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:55,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:48:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:55,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:48:55,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:48:55,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:48:55,875 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:55,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817238365] [2021-11-23 03:48:55,875 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:48:55,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968727225] [2021-11-23 03:48:55,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968727225] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:55,876 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:55,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:55,876 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128556677] [2021-11-23 03:48:55,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:55,877 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:55,877 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:55,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:55,878 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:56,725 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-23 03:48:56,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:48:56,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 03:48:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:56,728 INFO L225 Difference]: With dead ends: 395 [2021-11-23 03:48:56,728 INFO L226 Difference]: Without dead ends: 242 [2021-11-23 03:48:56,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:48:56,730 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:56,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:48:56,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-23 03:48:56,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-23 03:48:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:48:56,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-23 03:48:56,788 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-23 03:48:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:56,789 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-23 03:48:56,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:56,789 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-23 03:48:56,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 03:48:56,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:56,791 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:56,834 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:56,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:56,992 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:56,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:56,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-23 03:48:56,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:56,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452952187] [2021-11-23 03:48:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:56,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:57,013 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:48:57,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063363990] [2021-11-23 03:48:57,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:57,014 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:57,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:57,015 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:57,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:48:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:48:57,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:48:57,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:48:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:48:57,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:48:57,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:48:57,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452952187] [2021-11-23 03:48:57,836 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:48:57,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063363990] [2021-11-23 03:48:57,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063363990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:48:57,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:48:57,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:48:57,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952371455] [2021-11-23 03:48:57,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:48:57,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:48:57,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:48:57,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:48:57,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:48:57,839 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:59,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:48:59,546 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-23 03:48:59,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:48:59,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 03:48:59,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:48:59,554 INFO L225 Difference]: With dead ends: 411 [2021-11-23 03:48:59,554 INFO L226 Difference]: Without dead ends: 216 [2021-11-23 03:48:59,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:48:59,556 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:48:59,556 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 03:48:59,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-23 03:48:59,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-23 03:48:59,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-23 03:48:59,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-23 03:48:59,572 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-23 03:48:59,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:48:59,573 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-23 03:48:59,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:48:59,573 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-23 03:48:59,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 03:48:59,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:48:59,576 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:48:59,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:48:59,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:59,788 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:48:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:48:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-23 03:48:59,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:48:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799365156] [2021-11-23 03:48:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:59,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:48:59,811 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:48:59,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803181902] [2021-11-23 03:48:59,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:48:59,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:48:59,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:48:59,849 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:48:59,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebaa4587-8fb7-4b0c-8b3d-cd145f000bd7/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:49:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:49:07,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:49:07,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:49:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:49:07,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:49:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:49:07,719 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:49:07,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799365156] [2021-11-23 03:49:07,720 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:49:07,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803181902] [2021-11-23 03:49:07,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803181902] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:49:07,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2142228611] [2021-11-23 03:49:07,743 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 03:49:07,744 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:49:07,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:49:07,755 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:49:07,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:49:07,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:49:07,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:49:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:07,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 03:49:07,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:07,963 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:49:07,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-23 03:49:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:07,996 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:49:07,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-23 03:49:08,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:49:08,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,090 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:49:08,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-23 03:49:08,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,138 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:49:08,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-23 03:49:08,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,190 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:49:08,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 03:49:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:49:08,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:49:08,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:49:08,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 03:49:08,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-23 03:49:08,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:49:08,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:49:08,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 03:49:08,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:49:08,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:49:08,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:49:08,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-23 03:49:08,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:08,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,066 INFO L354 Elim1Store]: treesize reduction 170, result has 24.8 percent of original size [2021-11-23 03:49:09,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 163 [2021-11-23 03:49:09,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,121 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 03:49:09,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 156 [2021-11-23 03:49:09,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:49:09,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:49:09,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:49:09,295 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:49:09,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-23 03:49:09,320 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:49:09,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-23 03:49:09,347 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:49:09,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-23 03:49:09,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:49:09,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 03:49:09,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:49:09,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:49:09,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:49:09,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:49:09,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:49:09,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:49:09,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:09,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:49:17,934 WARN L227 SmtUtils]: Spent 8.12s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:49:17,935 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:49:17,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2863 treesize of output 2340 [2021-11-23 03:49:17,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:27,896 WARN L227 SmtUtils]: Spent 9.90s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:49:27,897 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:49:27,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2964 treesize of output 2682 [2021-11-23 03:49:40,026 WARN L227 SmtUtils]: Spent 12.00s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:49:40,028 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 03:49:40,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2868 treesize of output 2698 [2021-11-23 03:49:40,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:40,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:41,992 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 03:49:41,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25966 treesize of output 25997 [2021-11-23 03:49:42,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:42,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:42,797 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 03:49:42,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 25976 treesize of output 25990 [2021-11-23 03:49:43,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:43,673 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 03:49:43,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 03:49:44,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:44,311 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:49:44,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-23 03:49:44,567 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,609 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,742 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,779 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,894 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,935 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:44,990 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,023 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,125 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,166 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,349 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,384 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,455 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,496 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,614 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,657 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,724 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,780 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,882 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:45,920 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,155 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,199 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,263 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,307 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,457 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,489 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,574 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,621 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,691 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,744 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,805 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,839 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,923 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:46,960 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,141 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,276 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,317 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,434 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,475 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,539 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,575 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,668 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:47,707 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,100 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,148 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,272 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,396 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,437 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,639 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,723 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:48,784 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,008 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,041 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,091 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,149 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,238 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,270 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,356 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,390 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,462 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,506 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,636 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,681 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:49,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:49:49,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:49:49,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:49,885 INFO L244 Elim1Store]: Index analysis took 107 ms [2021-11-23 03:49:49,887 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 1241 treesize of output 791 [2021-11-23 03:49:49,943 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,133 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,201 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,251 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,334 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,407 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,486 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,651 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,713 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:50,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,007 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,063 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,102 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,219 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,314 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,361 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,410 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,445 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,864 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:51,895 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,021 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,052 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,127 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,156 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,203 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,246 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,320 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,352 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,502 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,534 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,592 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,622 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,739 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,770 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,833 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,865 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,951 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:52,982 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,126 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,161 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,242 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,296 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,439 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,520 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,572 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,680 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,723 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,775 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,812 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,894 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:53,928 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,063 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,096 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,176 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,209 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,297 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,330 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,393 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,428 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,539 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:54,584 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:55,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 03:49:55,689 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:55,716 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:55,764 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:55,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:55,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 03:49:56,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,310 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 03:49:56,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-23 03:49:56,392 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:56,436 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:49:56,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:56,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-23 03:49:58,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:49:58,576 INFO L244 Elim1Store]: Index analysis took 179 ms [2021-11-23 03:49:58,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:01,051 INFO L354 Elim1Store]: treesize reduction 9884, result has 39.3 percent of original size [2021-11-23 03:50:01,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 57661 treesize of output 57014 [2021-11-23 03:50:17,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:17,994 INFO L244 Elim1Store]: Index analysis took 294 ms [2021-11-23 03:50:18,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:18,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:18,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:21,790 INFO L354 Elim1Store]: treesize reduction 8978, result has 45.0 percent of original size [2021-11-23 03:50:21,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 case distinctions, treesize of input 6843 treesize of output 12272 [2021-11-23 03:50:22,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:22,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:22,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:22,471 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-11-23 03:50:22,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:24,877 INFO L354 Elim1Store]: treesize reduction 6630, result has 45.1 percent of original size [2021-11-23 03:50:24,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 12078 treesize of output 15360 [2021-11-23 03:50:25,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:25,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:25,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,341 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:25,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,509 INFO L244 Elim1Store]: Index analysis took 219 ms [2021-11-23 03:50:25,750 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:50:25,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 5290 treesize of output 3722 [2021-11-23 03:50:25,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,871 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:25,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:25,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,006 INFO L244 Elim1Store]: Index analysis took 169 ms [2021-11-23 03:50:26,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,305 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-23 03:50:26,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 9566 treesize of output 7506 [2021-11-23 03:50:26,559 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:26,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:26,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:26,787 INFO L244 Elim1Store]: Index analysis took 228 ms [2021-11-23 03:50:27,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 7950 treesize of output 6198 [2021-11-23 03:50:27,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,201 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,392 INFO L244 Elim1Store]: Index analysis took 244 ms [2021-11-23 03:50:27,628 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:50:27,629 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 6834 treesize of output 5082 [2021-11-23 03:50:27,694 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:50:27,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,813 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,847 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:50:27,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:27,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:28,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:28,006 INFO L244 Elim1Store]: Index analysis took 227 ms [2021-11-23 03:50:28,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 5290 treesize of output 3722 [2021-11-23 03:50:38,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:50:38,056 INFO L190 IndexEqualityManager]: detected not equals via solver