./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:03:31,076 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:03:31,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:03:31,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:03:31,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:03:31,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:03:31,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:03:31,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:03:31,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:03:31,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:03:31,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:03:31,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:03:31,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:03:31,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:03:31,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:03:31,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:03:31,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:03:31,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:03:31,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:03:31,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:03:31,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:03:31,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:03:31,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:03:31,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:03:31,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:03:31,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:03:31,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:03:31,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:03:31,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:03:31,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:03:31,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:03:31,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:03:31,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:03:31,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:03:31,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:03:31,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:03:31,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:03:31,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:03:31,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:03:31,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:03:31,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:03:31,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:03:31,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:03:31,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:03:31,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:03:31,195 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:03:31,196 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:03:31,197 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:03:31,197 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:03:31,197 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:03:31,197 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:03:31,197 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:03:31,198 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:03:31,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:03:31,199 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:03:31,199 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:03:31,199 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:03:31,200 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:03:31,200 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:03:31,200 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:03:31,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:03:31,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:03:31,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:03:31,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:03:31,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:03:31,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:03:31,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:03:31,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:03:31,204 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:03:31,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:03:31,205 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:03:31,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:03:31,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:03:31,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:03:31,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:03:31,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:03:31,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:03:31,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:03:31,207 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:03:31,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:03:31,207 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:03:31,207 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:03:31,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:03:31,208 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2021-11-23 02:03:31,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:03:31,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:03:31,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:03:31,542 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:03:31,543 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:03:31,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-23 02:03:31,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/data/c70c9c26b/679251edc6b84c97bf83d7de5b540006/FLAG3074463b6 [2021-11-23 02:03:32,318 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:03:32,319 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-23 02:03:32,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/data/c70c9c26b/679251edc6b84c97bf83d7de5b540006/FLAG3074463b6 [2021-11-23 02:03:32,541 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/data/c70c9c26b/679251edc6b84c97bf83d7de5b540006 [2021-11-23 02:03:32,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:03:32,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:03:32,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:03:32,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:03:32,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:03:32,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:32" (1/1) ... [2021-11-23 02:03:32,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7c2107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:32, skipping insertion in model container [2021-11-23 02:03:32,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:32" (1/1) ... [2021-11-23 02:03:32,566 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:03:32,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:03:33,286 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-23 02:03:33,309 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-23 02:03:33,431 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-23 02:03:33,432 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-23 02:03:33,439 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:03:33,447 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:03:33,505 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-23 02:03:33,507 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-23 02:03:33,612 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-23 02:03:33,613 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_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-23 02:03:33,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:03:33,705 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:03:33,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33 WrapperNode [2021-11-23 02:03:33,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:03:33,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:03:33,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:03:33,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:03:33,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,891 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1040 [2021-11-23 02:03:33,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:03:33,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:03:33,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:03:33,893 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:03:33,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:33,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:03:33,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:03:33,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:03:33,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:03:34,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (1/1) ... [2021-11-23 02:03:34,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:03:34,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:34,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:03:34,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:03:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:03:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 02:03:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:03:34,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:03:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-23 02:03:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-23 02:03:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:03:34,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 02:03:34,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 02:03:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:03:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:03:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:03:34,119 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-23 02:03:34,119 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-23 02:03:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:03:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-23 02:03:34,120 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-23 02:03:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:03:34,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:03:34,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:03:34,410 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:03:34,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:03:35,430 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:03:35,802 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:03:35,802 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-23 02:03:35,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:35 BoogieIcfgContainer [2021-11-23 02:03:35,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:03:35,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:03:35,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:03:35,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:03:35,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:03:32" (1/3) ... [2021-11-23 02:03:35,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ea80b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:35, skipping insertion in model container [2021-11-23 02:03:35,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:33" (2/3) ... [2021-11-23 02:03:35,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ea80b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:35, skipping insertion in model container [2021-11-23 02:03:35,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:35" (3/3) ... [2021-11-23 02:03:35,815 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2021-11-23 02:03:35,821 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:03:35,821 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-23 02:03:35,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:03:35,875 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:03:35,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-23 02:03:35,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 02:03:35,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 02:03:35,900 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:35,901 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:35,902 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:35,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:35,907 INFO L85 PathProgramCache]: Analyzing trace with hash 898140550, now seen corresponding path program 1 times [2021-11-23 02:03:35,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:35,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39843017] [2021-11-23 02:03:35,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:35,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:36,067 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:36,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39843017] [2021-11-23 02:03:36,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39843017] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:36,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:36,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:03:36,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116127138] [2021-11-23 02:03:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:36,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:03:36,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:36,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:03:36,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:03:36,105 INFO L87 Difference]: Start difference. First operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:36,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:36,828 INFO L93 Difference]: Finished difference Result 281 states and 474 transitions. [2021-11-23 02:03:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:03:36,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-23 02:03:36,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:36,843 INFO L225 Difference]: With dead ends: 281 [2021-11-23 02:03:36,843 INFO L226 Difference]: Without dead ends: 138 [2021-11-23 02:03:36,848 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:03:36,852 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:36,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 02:03:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-11-23 02:03:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-11-23 02:03:36,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.188034188034188) internal successors, (139), 122 states have internal predecessors, (139), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 02:03:36,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 164 transitions. [2021-11-23 02:03:36,909 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 164 transitions. Word has length 7 [2021-11-23 02:03:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:36,910 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 164 transitions. [2021-11-23 02:03:36,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 164 transitions. [2021-11-23 02:03:36,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:03:36,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:36,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:36,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:03:36,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:36,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1458001887, now seen corresponding path program 1 times [2021-11-23 02:03:36,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:36,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740880001] [2021-11-23 02:03:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:36,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:36,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:36,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:36,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:36,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740880001] [2021-11-23 02:03:36,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740880001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:36,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:36,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:03:36,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333603457] [2021-11-23 02:03:36,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:36,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:03:36,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:36,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:03:36,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:03:36,991 INFO L87 Difference]: Start difference. First operand 138 states and 164 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:38,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:38,614 INFO L93 Difference]: Finished difference Result 276 states and 329 transitions. [2021-11-23 02:03:38,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:03:38,617 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-23 02:03:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:38,620 INFO L225 Difference]: With dead ends: 276 [2021-11-23 02:03:38,620 INFO L226 Difference]: Without dead ends: 203 [2021-11-23 02:03:38,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:03:38,623 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 66 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:38,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 392 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-23 02:03:38,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-11-23 02:03:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 140. [2021-11-23 02:03:38,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 119 states have (on average 1.184873949579832) internal successors, (141), 124 states have internal predecessors, (141), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-11-23 02:03:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2021-11-23 02:03:38,642 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 9 [2021-11-23 02:03:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:38,642 INFO L470 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2021-11-23 02:03:38,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:38,643 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2021-11-23 02:03:38,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:03:38,644 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:38,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:38,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:03:38,644 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:38,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:38,645 INFO L85 PathProgramCache]: Analyzing trace with hash 496803015, now seen corresponding path program 1 times [2021-11-23 02:03:38,646 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:38,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260632135] [2021-11-23 02:03:38,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:38,646 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:38,669 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:38,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1989363851] [2021-11-23 02:03:38,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:38,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:38,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:38,671 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:38,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:03:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:38,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 02:03:38,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:39,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:39,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:03:39,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:39,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260632135] [2021-11-23 02:03:39,018 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:39,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989363851] [2021-11-23 02:03:39,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989363851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:39,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:39,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 02:03:39,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613393388] [2021-11-23 02:03:39,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:39,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:03:39,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:39,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:03:39,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:03:39,021 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:40,954 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2021-11-23 02:03:40,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:03:40,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 02:03:40,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:40,959 INFO L225 Difference]: With dead ends: 151 [2021-11-23 02:03:40,960 INFO L226 Difference]: Without dead ends: 149 [2021-11-23 02:03:40,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:03:40,962 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 11 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 688 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:40,962 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 688 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-23 02:03:40,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-11-23 02:03:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-11-23 02:03:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 125 states have (on average 1.184) internal successors, (148), 131 states have internal predecessors, (148), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:03:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 175 transitions. [2021-11-23 02:03:40,983 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 175 transitions. Word has length 20 [2021-11-23 02:03:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:40,984 INFO L470 AbstractCegarLoop]: Abstraction has 149 states and 175 transitions. [2021-11-23 02:03:40,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 175 transitions. [2021-11-23 02:03:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 02:03:40,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:40,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:03:41,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:03:41,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:41,191 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:41,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:41,192 INFO L85 PathProgramCache]: Analyzing trace with hash 785813656, now seen corresponding path program 1 times [2021-11-23 02:03:41,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:41,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135757604] [2021-11-23 02:03:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:41,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:41,212 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:41,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1538666881] [2021-11-23 02:03:41,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:41,213 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:41,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:41,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:41,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:03:41,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:41,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 02:03:41,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:41,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:41,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:03:41,657 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:41,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135757604] [2021-11-23 02:03:41,657 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:41,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538666881] [2021-11-23 02:03:41,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538666881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:41,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:41,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:03:41,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833042966] [2021-11-23 02:03:41,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:41,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:03:41,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:41,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:03:41,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:03:41,661 INFO L87 Difference]: Start difference. First operand 149 states and 175 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:43,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:43,018 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2021-11-23 02:03:43,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:03:43,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-23 02:03:43,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:43,023 INFO L225 Difference]: With dead ends: 352 [2021-11-23 02:03:43,024 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 02:03:43,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:03:43,026 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 52 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:43,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 276 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 02:03:43,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 02:03:43,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2021-11-23 02:03:43,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 174 states have internal predecessors, (197), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 02:03:43,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2021-11-23 02:03:43,046 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 28 [2021-11-23 02:03:43,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:43,047 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2021-11-23 02:03:43,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:03:43,047 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2021-11-23 02:03:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 02:03:43,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:43,049 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] [2021-11-23 02:03:43,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:03:43,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:43,270 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:43,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:43,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1058406850, now seen corresponding path program 1 times [2021-11-23 02:03:43,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:43,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861144611] [2021-11-23 02:03:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:43,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:43,290 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:43,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [297153540] [2021-11-23 02:03:43,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:43,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:43,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:43,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:43,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:03:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:43,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:03:43,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:43,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:03:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:03:43,810 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:43,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861144611] [2021-11-23 02:03:43,811 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:43,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297153540] [2021-11-23 02:03:43,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297153540] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 02:03:43,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 02:03:43,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2021-11-23 02:03:43,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675017698] [2021-11-23 02:03:43,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:43,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 02:03:43,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:43,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 02:03:43,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:03:43,816 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:03:45,259 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:03:45,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:45,561 INFO L93 Difference]: Finished difference Result 710 states and 839 transitions. [2021-11-23 02:03:45,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:03:45,562 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2021-11-23 02:03:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:45,568 INFO L225 Difference]: With dead ends: 710 [2021-11-23 02:03:45,568 INFO L226 Difference]: Without dead ends: 534 [2021-11-23 02:03:45,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:03:45,570 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 699 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:45,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 416 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 02:03:45,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-23 02:03:45,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 312. [2021-11-23 02:03:45,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-23 02:03:45,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 365 transitions. [2021-11-23 02:03:45,599 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 365 transitions. Word has length 32 [2021-11-23 02:03:45,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:45,599 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 365 transitions. [2021-11-23 02:03:45,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 02:03:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 365 transitions. [2021-11-23 02:03:45,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 02:03:45,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:45,603 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-11-23 02:03:45,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 02:03:45,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:45,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:45,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:45,808 INFO L85 PathProgramCache]: Analyzing trace with hash 229369108, now seen corresponding path program 1 times [2021-11-23 02:03:45,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:45,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095763213] [2021-11-23 02:03:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:45,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:45,838 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:45,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [92274694] [2021-11-23 02:03:45,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:45,838 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:45,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:45,839 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:45,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 02:03:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:46,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 02:03:46,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 02:03:46,238 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:03:46,238 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:46,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095763213] [2021-11-23 02:03:46,238 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:46,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92274694] [2021-11-23 02:03:46,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92274694] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:46,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:46,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:03:46,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747354795] [2021-11-23 02:03:46,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:46,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:03:46,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:46,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:03:46,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:03:46,241 INFO L87 Difference]: Start difference. First operand 312 states and 365 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:03:48,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:48,313 INFO L93 Difference]: Finished difference Result 592 states and 694 transitions. [2021-11-23 02:03:48,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:03:48,317 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2021-11-23 02:03:48,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:48,319 INFO L225 Difference]: With dead ends: 592 [2021-11-23 02:03:48,319 INFO L226 Difference]: Without dead ends: 312 [2021-11-23 02:03:48,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:03:48,321 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 17 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:48,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 480 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 02:03:48,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-23 02:03:48,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2021-11-23 02:03:48,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 02:03:48,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2021-11-23 02:03:48,340 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 57 [2021-11-23 02:03:48,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:48,341 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2021-11-23 02:03:48,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-23 02:03:48,341 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2021-11-23 02:03:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 02:03:48,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:48,344 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2021-11-23 02:03:48,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:03:48,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:48,558 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:48,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:48,558 INFO L85 PathProgramCache]: Analyzing trace with hash 378165262, now seen corresponding path program 1 times [2021-11-23 02:03:48,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:48,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285386017] [2021-11-23 02:03:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:48,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:48,575 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:48,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1961325600] [2021-11-23 02:03:48,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:48,576 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:48,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:48,585 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:48,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 02:03:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:48,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 02:03:48,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:48,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:03:48,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 02:03:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:03:48,937 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:03:48,937 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:48,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285386017] [2021-11-23 02:03:48,938 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:48,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961325600] [2021-11-23 02:03:48,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961325600] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:48,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:48,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:03:48,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335664073] [2021-11-23 02:03:48,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:48,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:03:48,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:48,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:03:48,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:03:48,943 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 02:03:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:50,958 INFO L93 Difference]: Finished difference Result 415 states and 494 transitions. [2021-11-23 02:03:50,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:03:50,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2021-11-23 02:03:50,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:50,967 INFO L225 Difference]: With dead ends: 415 [2021-11-23 02:03:50,967 INFO L226 Difference]: Without dead ends: 402 [2021-11-23 02:03:50,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:03:50,968 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 60 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:50,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 383 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-23 02:03:50,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-23 02:03:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 316. [2021-11-23 02:03:50,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 287 states have (on average 1.1742160278745644) internal successors, (337), 293 states have internal predecessors, (337), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-23 02:03:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2021-11-23 02:03:50,990 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 62 [2021-11-23 02:03:50,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:50,990 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2021-11-23 02:03:50,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2021-11-23 02:03:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2021-11-23 02:03:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 02:03:50,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:50,994 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-23 02:03:51,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 02:03:51,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-23 02:03:51,210 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:51,210 INFO L85 PathProgramCache]: Analyzing trace with hash -867645780, now seen corresponding path program 1 times [2021-11-23 02:03:51,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:51,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556298076] [2021-11-23 02:03:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:51,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:51,231 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:51,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346528564] [2021-11-23 02:03:51,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:51,238 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:51,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:51,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:51,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 02:03:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:51,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-23 02:03:51,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 02:03:51,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 02:03:51,872 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:51,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556298076] [2021-11-23 02:03:51,872 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:51,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346528564] [2021-11-23 02:03:51,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346528564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:03:51,873 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:03:51,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 02:03:51,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17474755] [2021-11-23 02:03:51,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:03:51,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:03:51,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:03:51,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:03:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:03:51,876 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:03:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:03:55,359 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2021-11-23 02:03:55,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 02:03:55,365 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2021-11-23 02:03:55,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:03:55,368 INFO L225 Difference]: With dead ends: 604 [2021-11-23 02:03:55,368 INFO L226 Difference]: Without dead ends: 319 [2021-11-23 02:03:55,369 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:03:55,370 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 14 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:03:55,370 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 889 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-23 02:03:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-23 02:03:55,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-11-23 02:03:55,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 296 states have internal predecessors, (340), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2021-11-23 02:03:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2021-11-23 02:03:55,392 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 69 [2021-11-23 02:03:55,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:03:55,392 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2021-11-23 02:03:55,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-11-23 02:03:55,392 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2021-11-23 02:03:55,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-23 02:03:55,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:03:55,396 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-23 02:03:55,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-23 02:03:55,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:55,598 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-23 02:03:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:03:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1536874878, now seen corresponding path program 1 times [2021-11-23 02:03:55,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:03:55,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677165867] [2021-11-23 02:03:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:55,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:03:55,614 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 02:03:55,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772927227] [2021-11-23 02:03:55,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:03:55,615 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:03:55,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:03:55,618 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:03:55,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1ce3cd7-ab8c-4ab6-8a80-67c993458385/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 02:03:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:03:56,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-23 02:03:56,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:03:56,232 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 02:03:56,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:03:56,546 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-23 02:03:56,546 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:03:56,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677165867] [2021-11-23 02:03:56,546 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 02:03:56,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772927227] [2021-11-23 02:03:56,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772927227] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:03:56,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [752937963] [2021-11-23 02:03:56,570 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2021-11-23 02:03:56,570 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:03:56,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:03:56,581 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:03:56,582 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:03:56,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,721 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 02:03:56,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 02:03:56,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:03:56,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:03:56,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-23 02:03:56,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 29 treesize of output 28 [2021-11-23 02:03:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-23 02:03:56,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:03:56,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,910 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-23 02:03:56,910 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 37 treesize of output 61 [2021-11-23 02:03:56,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 56 [2021-11-23 02:03:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:56,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 58 [2021-11-23 02:03:57,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 02:03:57,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-23 02:03:57,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:03:57,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-23 02:03:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-23 02:03:57,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-23 02:03:57,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,592 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 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-23 02:03:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 02:03:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:03:57,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 02:03:57,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 104 [2021-11-23 02:03:57,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 97 [2021-11-23 02:03:57,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-23 02:03:57,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:57,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-23 02:03:57,935 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 25 treesize of output 1 [2021-11-23 02:03:57,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:03:57,944 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 25 treesize of output 1 [2021-11-23 02:03:57,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-23 02:03:57,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:03:58,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:03:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,076 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 28 treesize of output 10 [2021-11-23 02:03:58,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,091 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 28 treesize of output 10 [2021-11-23 02:03:58,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 54 [2021-11-23 02:03:58,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 40 treesize of output 32 [2021-11-23 02:03:58,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 13 [2021-11-23 02:03:58,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 02:03:58,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,333 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 28 treesize of output 10 [2021-11-23 02:03:58,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-23 02:03:58,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,372 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 28 treesize of output 10 [2021-11-23 02:03:58,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 54 [2021-11-23 02:03:58,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 40 treesize of output 32 [2021-11-23 02:03:58,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 33 treesize of output 15 [2021-11-23 02:03:58,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:03:58,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-23 02:03:58,507 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 [2021-11-23 02:03:58,519 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 19 treesize of output 1 [2021-11-23 02:03:58,530 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 104 treesize of output 100 [2021-11-23 02:03:58,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:03:58,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:03:58,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:03:58,941 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:03:58,942 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 141 treesize of output 140 [2021-11-23 02:03:58,990 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 02:03:58,990 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 137 treesize of output 136 [2021-11-23 02:03:59,020 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 02:03:59,020 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 133 treesize of output 132 [2021-11-23 02:03:59,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:03:59,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:03:59,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 02:03:59,140 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 160 treesize of output 124 [2021-11-23 02:03:59,151 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 121 treesize of output 109 [2021-11-23 02:03:59,521 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 160 treesize of output 124 [2021-11-23 02:03:59,532 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 121 treesize of output 109 [2021-11-23 02:04:01,917 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 02:04:01,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-23 02:04:01,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:03,321 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 02:04:03,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-23 02:04:04,727 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-23 02:04:04,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1415 treesize of output 1461 [2021-11-23 02:04:05,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:05,253 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 02:04:05,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-23 02:04:05,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:05,382 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:04:05,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-23 02:04:05,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:05,506 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 23 treesize of output 13 [2021-11-23 02:04:05,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:05,605 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:05,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:05,741 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-23 02:04:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-23 02:04:05,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:05,898 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 02:04:05,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 30 [2021-11-23 02:04:06,004 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:06,046 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:06,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:06,079 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:06,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:06,083 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 57 [2021-11-23 02:04:06,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:06,714 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 02:04:06,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 739 treesize of output 935 [2021-11-23 02:04:06,943 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:06,965 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:06,989 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,062 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 341 treesize of output 231 [2021-11-23 02:04:07,103 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,127 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,245 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,313 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,346 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:04:07,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,363 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 198 treesize of output 100 [2021-11-23 02:04:07,387 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,446 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,482 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 02:04:07,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:07,673 INFO L354 Elim1Store]: treesize reduction 212, result has 36.3 percent of original size [2021-11-23 02:04:07,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 350 treesize of output 354 [2021-11-23 02:04:08,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:08,061 INFO L354 Elim1Store]: treesize reduction 320, result has 0.3 percent of original size [2021-11-23 02:04:08,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 747 treesize of output 643 [2021-11-23 02:04:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:04:08,990 INFO L354 Elim1Store]: treesize reduction 400, result has 54.5 percent of original size [2021-11-23 02:04:08,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 5658 treesize of output 5912 [2021-11-23 02:05:56,284 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 1988 DAG size of output: 1986 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:07:35,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:35,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:35,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:35,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:35,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:35,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:07:37,007 INFO L354 Elim1Store]: treesize reduction 464, result has 57.5 percent of original size [2021-11-23 02:07:37,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 1002551 treesize of output 934729 [2021-11-23 02:09:52,291 WARN L227 SmtUtils]: Spent 5.49s on a formula simplification that was a NOOP. DAG size: 2717 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:10:03,480 WARN L227 SmtUtils]: Spent 9.42s on a formula simplification. DAG size of input: 2225 DAG size of output: 2223 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)