./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/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_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:13:56,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:13:56,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:13:56,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:13:56,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:13:56,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:13:56,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:13:56,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:13:56,753 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:13:56,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:13:56,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:13:56,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:13:56,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:13:56,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:13:56,759 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:13:56,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:13:56,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:13:56,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:13:56,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:13:56,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:13:56,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:13:56,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:13:56,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:13:56,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:13:56,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:13:56,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:13:56,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:13:56,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:13:56,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:13:56,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:13:56,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:13:56,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:13:56,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:13:56,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:13:56,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:13:56,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:13:56,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:13:56,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:13:56,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:13:56,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:13:56,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:13:56,797 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 20:13:56,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:13:56,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:13:56,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:13:56,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:13:56,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:13:56,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:13:56,855 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:13:56,855 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:13:56,855 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:13:56,855 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:13:56,857 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:13:56,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:13:56,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:13:56,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:13:56,858 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:13:56,858 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:13:56,858 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:13:56,858 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:13:56,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:13:56,860 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:13:56,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:13:56,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:13:56,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:13:56,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:13:56,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:13:56,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:13:56,862 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:13:56,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:13:56,863 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:13:56,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:13:56,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:13:56,864 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:13:56,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:13:56,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:13:56,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:13:56,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:13:56,865 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:13:56,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:13:56,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:13:56,866 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:13:56,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:13:56,866 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_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f1036b64b29bd922a31935b87e7c90d1acbba8f8044f40e2525bb03d5de1e7f [2021-11-25 20:13:57,134 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:13:57,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:13:57,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:13:57,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:13:57,158 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:13:57,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-25 20:13:57,228 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/data/e6c8a0fd8/2aa6359eb77640fab36d9b31beeedcaf/FLAG9dd09ed31 [2021-11-25 20:13:57,810 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:13:57,811 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i [2021-11-25 20:13:57,828 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/data/e6c8a0fd8/2aa6359eb77640fab36d9b31beeedcaf/FLAG9dd09ed31 [2021-11-25 20:13:58,031 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/data/e6c8a0fd8/2aa6359eb77640fab36d9b31beeedcaf [2021-11-25 20:13:58,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:13:58,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:13:58,043 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:13:58,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:13:58,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:13:58,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:58,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62fb4936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58, skipping insertion in model container [2021-11-25 20:13:58,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:58,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:13:58,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:13:58,533 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_76235aae-19df-483b-a125-2d9b7dc7e6d3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-25 20:13:58,653 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_76235aae-19df-483b-a125-2d9b7dc7e6d3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-25 20:13:58,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:13:58,677 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:13:58,723 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_76235aae-19df-483b-a125-2d9b7dc7e6d3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[33021,33034] [2021-11-25 20:13:58,808 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_76235aae-19df-483b-a125-2d9b7dc7e6d3/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test3-2.i[44590,44603] [2021-11-25 20:13:58,818 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:13:58,862 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:13:58,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58 WrapperNode [2021-11-25 20:13:58,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:13:58,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:13:58,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:13:58,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:13:58,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:58,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,030 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-25 20:13:59,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:13:59,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:13:59,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:13:59,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:13:59,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,189 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:13:59,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:13:59,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:13:59,201 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:13:59,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (1/1) ... [2021-11-25 20:13:59,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:13:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:13:59,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:13:59,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:13:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:13:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:13:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:13:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:13:59,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:13:59,295 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:13:59,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:13:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:13:59,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:13:59,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:13:59,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:13:59,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:14:00,781 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:14:01,231 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:14:01,231 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-25 20:14:01,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:14:01 BoogieIcfgContainer [2021-11-25 20:14:01,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:14:01,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:14:01,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:14:01,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:14:01,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:13:58" (1/3) ... [2021-11-25 20:14:01,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3230af03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:14:01, skipping insertion in model container [2021-11-25 20:14:01,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:13:58" (2/3) ... [2021-11-25 20:14:01,243 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3230af03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:14:01, skipping insertion in model container [2021-11-25 20:14:01,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:14:01" (3/3) ... [2021-11-25 20:14:01,245 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test3-2.i [2021-11-25 20:14:01,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:14:01,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-25 20:14:01,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:14:01,334 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:14:01,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-25 20:14:01,362 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) [2021-11-25 20:14:01,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 20:14:01,367 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:01,367 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:01,368 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-25 20:14:01,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:01,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979604276] [2021-11-25 20:14:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:01,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:01,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:01,585 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979604276] [2021-11-25 20:14:01,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979604276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:01,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:01,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:14:01,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151084243] [2021-11-25 20:14:01,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:01,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 20:14:01,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:01,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 20:14:01,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:14:01,633 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) [2021-11-25 20:14:02,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:02,137 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-25 20:14:02,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 20:14:02,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 20:14:02,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:02,154 INFO L225 Difference]: With dead ends: 273 [2021-11-25 20:14:02,154 INFO L226 Difference]: Without dead ends: 122 [2021-11-25 20:14:02,158 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 20:14:02,162 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:02,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 20:14:02,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-25 20:14:02,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-25 20:14:02,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:14:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-25 20:14:02,212 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-25 20:14:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:02,213 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-25 20:14:02,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-25 20:14:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 20:14:02,214 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:02,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:02,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:14:02,215 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:02,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:02,216 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-25 20:14:02,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:02,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123278329] [2021-11-25 20:14:02,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:02,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:02,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:02,302 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:02,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123278329] [2021-11-25 20:14:02,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123278329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:02,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:02,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:14:02,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414691624] [2021-11-25 20:14:02,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:02,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:02,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:02,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:02,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:02,306 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:03,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:03,813 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-25 20:14:03,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:14:03,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 20:14:03,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:03,823 INFO L225 Difference]: With dead ends: 258 [2021-11-25 20:14:03,823 INFO L226 Difference]: Without dead ends: 189 [2021-11-25 20:14:03,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:14:03,826 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s 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, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:03,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 20:14:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-25 20:14:03,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-25 20:14:03,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:14:03,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-25 20:14:03,847 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-25 20:14:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:03,847 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-25 20:14:03,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-25 20:14:03,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:14:03,874 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:03,874 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:03,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:14:03,875 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:03,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-25 20:14:03,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:03,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397297156] [2021-11-25 20:14:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:03,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:03,995 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:14:03,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1438068416] [2021-11-25 20:14:03,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:03,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:03,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:04,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:04,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:14:04,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:04,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:14:04,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:04,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:14:04,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:04,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397297156] [2021-11-25 20:14:04,911 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:04,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438068416] [2021-11-25 20:14:04,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438068416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:04,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:04,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:14:04,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739254244] [2021-11-25 20:14:04,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:04,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:14:04,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:04,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:14:04,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:04,914 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:05,595 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-25 20:14:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:14:05,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-25 20:14:05,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:05,604 INFO L225 Difference]: With dead ends: 304 [2021-11-25 20:14:05,604 INFO L226 Difference]: Without dead ends: 183 [2021-11-25 20:14:05,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:14:05,606 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:05,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:14:05,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-25 20:14:05,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-25 20:14:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:14:05,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-25 20:14:05,625 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-25 20:14:05,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:05,625 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-25 20:14:05,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:14:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-25 20:14:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-25 20:14:05,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:05,628 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:05,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 20:14:05,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:05,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:05,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:05,857 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-25 20:14:05,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:05,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432458693] [2021-11-25 20:14:05,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:05,909 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:14:05,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1834655647] [2021-11-25 20:14:05,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:05,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:05,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:05,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:05,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:14:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:06,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:14:06,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:06,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:14:06,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:14:06,529 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:14:06,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:14:06,530 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:06,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432458693] [2021-11-25 20:14:06,534 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:06,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834655647] [2021-11-25 20:14:06,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1834655647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:06,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:06,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:06,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243156775] [2021-11-25 20:14:06,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:06,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:06,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:06,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:06,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:06,537 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:14:07,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:07,825 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-25 20:14:07,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:14:07,829 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-25 20:14:07,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:07,831 INFO L225 Difference]: With dead ends: 231 [2021-11-25 20:14:07,832 INFO L226 Difference]: Without dead ends: 212 [2021-11-25 20:14:07,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:14:07,833 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:07,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 358 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:14:07,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-25 20:14:07,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-25 20:14:07,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:14:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-25 20:14:07,850 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-25 20:14:07,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:07,851 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-25 20:14:07,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:14:07,852 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-25 20:14:07,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-25 20:14:07,854 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:07,854 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:07,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:14:08,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:08,069 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:08,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:08,069 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-25 20:14:08,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:08,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600464181] [2021-11-25 20:14:08,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:08,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:08,121 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:14:08,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2077681622] [2021-11-25 20:14:08,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:08,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:08,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:08,123 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:08,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:14:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:08,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:14:08,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 20:14:08,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:14:08,761 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:08,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600464181] [2021-11-25 20:14:08,762 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:08,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2077681622] [2021-11-25 20:14:08,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2077681622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:08,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:08,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:08,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309023562] [2021-11-25 20:14:08,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:08,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:08,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:08,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:08,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:08,764 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:14:09,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:09,424 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-25 20:14:09,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:14:09,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-25 20:14:09,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:09,427 INFO L225 Difference]: With dead ends: 395 [2021-11-25 20:14:09,428 INFO L226 Difference]: Without dead ends: 242 [2021-11-25 20:14:09,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:14:09,430 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:09,430 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-25 20:14:09,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-25 20:14:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-25 20:14:09,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-25 20:14:09,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-25 20:14:09,454 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-25 20:14:09,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:09,455 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-25 20:14:09,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:14:09,455 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-25 20:14:09,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:14:09,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:09,458 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:09,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-25 20:14:09,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:09,680 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:09,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-25 20:14:09,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:09,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586454375] [2021-11-25 20:14:09,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:09,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:09,738 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:14:09,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [558254224] [2021-11-25 20:14:09,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:09,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:09,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:09,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:09,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:14:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:12,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:14:12,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:14:12,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:14:12,665 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:12,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586454375] [2021-11-25 20:14:12,665 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:12,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558254224] [2021-11-25 20:14:12,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558254224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:14:12,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:14:12,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:14:12,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728821428] [2021-11-25 20:14:12,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:14:12,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:14:12,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:14:12,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:14:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:14:12,668 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:14:13,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:14:13,385 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-25 20:14:13,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:14:13,390 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 64 [2021-11-25 20:14:13,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:14:13,392 INFO L225 Difference]: With dead ends: 411 [2021-11-25 20:14:13,392 INFO L226 Difference]: Without dead ends: 216 [2021-11-25 20:14:13,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:14:13,394 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:14:13,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:14:13,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-25 20:14:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-25 20:14:13,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-25 20:14:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-25 20:14:13,412 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-25 20:14:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:14:13,413 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-25 20:14:13,413 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-25 20:14:13,413 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-25 20:14:13,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-25 20:14:13,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:14:13,416 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:14:13,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 20:14:13,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:13,632 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:14:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:14:13,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-25 20:14:13,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:14:13,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394258099] [2021-11-25 20:14:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:13,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:14:13,680 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:14:13,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [723263447] [2021-11-25 20:14:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:14:13,681 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:14:13,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:14:13,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:14:13,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76235aae-19df-483b-a125-2d9b7dc7e6d3/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:14:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:14:14,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:14:14,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:14:14,927 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:14:14,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:14:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:14:15,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:14:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394258099] [2021-11-25 20:14:15,126 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:14:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [723263447] [2021-11-25 20:14:15,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [723263447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:14:15,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1697424044] [2021-11-25 20:14:15,144 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-25 20:14:15,144 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:14:15,148 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:14:15,154 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:14:15,154 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:14:15,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,284 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-25 20:14:15,285 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 [2021-11-25 20:14:15,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,309 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 20:14:15,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 20:14:15,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 20:14:15,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:14:15,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 20:14:15,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,412 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-25 20:14:15,413 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 [2021-11-25 20:14:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,443 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 [2021-11-25 20:14:15,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,482 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:14:15,482 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 [2021-11-25 20:14:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,505 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 [2021-11-25 20:14:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,558 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:14:15,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-25 20:14:15,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 64 [2021-11-25 20:14:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-25 20:14:15,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:14:15,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:15,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:14:16,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:14:16,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 20:14:16,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-25 20:14:16,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:14:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:14:16,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 20:14:16,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 20:14:16,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,308 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 20:14:16,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2021-11-25 20:14:16,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 20:14:16,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:14:16,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:14:16,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:14:16,489 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 20:14:16,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 20:14:16,518 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:14:16,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 20:14:16,547 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 20:14:16,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 20:14:16,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:14:16,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:14:16,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:14:16,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 20:14:16,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:14:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:14:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 20:14:16,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-25 20:14:16,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:16,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-25 20:14:23,079 WARN L227 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:14:23,080 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:14:23,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 20:14:23,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:31,194 WARN L227 SmtUtils]: Spent 8.00s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:14:31,194 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:14:31,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 20:14:31,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:31,733 INFO L244 Elim1Store]: Index analysis took 331 ms [2021-11-25 20:14:40,213 WARN L227 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:14:40,214 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 20:14:40,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 20:14:40,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:40,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:40,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:40,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:40,863 INFO L244 Elim1Store]: Index analysis took 200 ms [2021-11-25 20:14:41,724 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:14:41,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 73 [2021-11-25 20:14:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 20:14:42,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:42,679 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:14:42,679 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 46 treesize of output 30 [2021-11-25 20:14:42,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,011 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:14:43,011 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 [2021-11-25 20:14:43,233 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,295 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,595 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,657 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:43,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:43,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:43,898 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-11-25 20:14:44,019 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:14:44,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3084 treesize of output 2866 [2021-11-25 20:14:44,248 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:44,462 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:44,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,564 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 20:14:44,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,926 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,944 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:44,962 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:44,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,022 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:45,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:45,041 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-11-25 20:14:45,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3105 treesize of output 2651 [2021-11-25 20:14:45,408 INFO L244 Elim1Store]: Index analysis took 153 ms [2021-11-25 20:14:47,731 INFO L354 Elim1Store]: treesize reduction 468, result has 74.7 percent of original size [2021-11-25 20:14:47,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3105 treesize of output 4035 [2021-11-25 20:14:50,053 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:50,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:50,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,162 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:50,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,257 INFO L244 Elim1Store]: Index analysis took 130 ms [2021-11-25 20:14:50,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 3096 treesize of output 2648 [2021-11-25 20:14:50,469 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:50,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:50,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:50,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:50,699 INFO L244 Elim1Store]: Index analysis took 146 ms [2021-11-25 20:14:51,032 INFO L354 Elim1Store]: treesize reduction 6, result has 91.3 percent of original size [2021-11-25 20:14:51,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 3096 treesize of output 2710 [2021-11-25 20:14:52,065 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:52,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:52,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:52,304 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:52,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 3075 treesize of output 2645 [2021-11-25 20:14:52,627 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:52,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,824 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:14:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:52,941 INFO L244 Elim1Store]: Index analysis took 136 ms [2021-11-25 20:14:53,400 INFO L354 Elim1Store]: treesize reduction 793, result has 31.2 percent of original size [2021-11-25 20:14:53,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3084 treesize of output 3008 [2021-11-25 20:14:53,624 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:54,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:54,868 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 [2021-11-25 20:14:54,889 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:54,934 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:54,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:54,996 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 [2021-11-25 20:14:55,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:55,302 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 20:14:55,302 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 [2021-11-25 20:14:55,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:55,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:55,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:14:55,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 59 [2021-11-25 20:14:55,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:57,795 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:58,228 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:58,331 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:58,365 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:58,459 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:14:58,524 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:15:01,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:15:01,540 INFO L190 IndexEqualityManager]: detected not equals via solver