./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:08:11,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:08:11,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:08:11,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:08:11,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:08:11,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:08:11,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:08:11,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:08:11,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:08:11,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:08:11,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:08:11,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:08:11,085 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:08:11,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:08:11,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:08:11,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:08:11,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:08:11,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:08:11,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:08:11,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:08:11,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:08:11,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:08:11,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:08:11,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:08:11,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:08:11,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:08:11,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:08:11,128 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:08:11,129 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:08:11,130 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:08:11,131 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:08:11,132 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:08:11,134 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:08:11,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:08:11,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:08:11,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:08:11,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:08:11,138 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:08:11,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:08:11,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:08:11,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:08:11,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:08:11,206 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:08:11,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:08:11,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:08:11,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:08:11,209 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:08:11,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:08:11,210 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:08:11,210 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:08:11,210 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:08:11,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:08:11,212 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:08:11,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:08:11,213 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:08:11,213 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:08:11,213 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:08:11,214 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:08:11,214 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:08:11,214 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:08:11,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:08:11,216 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:08:11,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:08:11,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:08:11,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:08:11,217 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:08:11,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:08:11,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:08:11,218 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:08:11,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:08:11,219 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:08:11,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:08:11,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:08:11,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:08:11,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:08:11,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:08:11,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:08:11,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:08:11,221 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:08:11,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:08:11,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:08:11,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:08:11,223 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:08:11,223 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_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2bb9f0c15e3c3296f863c26b4377b27546cf1c417a60e9663a6ff48eb617ef8 [2021-11-21 00:08:11,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:08:11,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:08:11,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:08:11,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:08:11,589 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:08:11,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2021-11-21 00:08:11,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/data/e03a78526/8479625f4bc44dbd871e1d0ed782648a/FLAG2ee812ea2 [2021-11-21 00:08:12,405 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:08:12,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i [2021-11-21 00:08:12,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/data/e03a78526/8479625f4bc44dbd871e1d0ed782648a/FLAG2ee812ea2 [2021-11-21 00:08:12,551 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/data/e03a78526/8479625f4bc44dbd871e1d0ed782648a [2021-11-21 00:08:12,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:08:12,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:08:12,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:08:12,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:08:12,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:08:12,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:08:12" (1/1) ... [2021-11-21 00:08:12,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2b0848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:12, skipping insertion in model container [2021-11-21 00:08:12,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:08:12" (1/1) ... [2021-11-21 00:08:12,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:08:12,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:08:13,178 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[33021,33034] [2021-11-21 00:08:13,321 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[44124,44137] [2021-11-21 00:08:13,322 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[44245,44258] [2021-11-21 00:08:13,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:08:13,339 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:08:13,372 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[33021,33034] [2021-11-21 00:08:13,456 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[44124,44137] [2021-11-21 00:08:13,467 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_42210e19-9ae4-46ca-9731-72b9d3571792/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test7-1.i[44245,44258] [2021-11-21 00:08:13,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:08:13,524 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:08:13,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13 WrapperNode [2021-11-21 00:08:13,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:08:13,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:08:13,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:08:13,527 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:08:13,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,675 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 00:08:13,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:08:13,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:08:13,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:08:13,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:08:13,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,853 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:08:13,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:08:13,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:08:13,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:08:13,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (1/1) ... [2021-11-21 00:08:13,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:08:13,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:13,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:08:13,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:08:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:08:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:08:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:08:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:08:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:08:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:08:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:08:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:08:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:08:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:08:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:08:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:08:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:08:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:08:14,434 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:08:14,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:08:15,672 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:08:16,157 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:08:16,158 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 00:08:16,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:08:16 BoogieIcfgContainer [2021-11-21 00:08:16,161 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:08:16,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:08:16,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:08:16,170 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:08:16,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:08:12" (1/3) ... [2021-11-21 00:08:16,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cec6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:08:16, skipping insertion in model container [2021-11-21 00:08:16,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:08:13" (2/3) ... [2021-11-21 00:08:16,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cec6ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:08:16, skipping insertion in model container [2021-11-21 00:08:16,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:08:16" (3/3) ... [2021-11-21 00:08:16,175 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test7-1.i [2021-11-21 00:08:16,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:08:16,184 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:08:16,279 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:08:16,297 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:08:16,297 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:08:16,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:16,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:08:16,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:16,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:16,344 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:16,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:16,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1906206326, now seen corresponding path program 1 times [2021-11-21 00:08:16,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:16,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836540481] [2021-11-21 00:08:16,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:16,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:16,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:16,513 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:16,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836540481] [2021-11-21 00:08:16,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836540481] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:16,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:16,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:08:16,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748051099] [2021-11-21 00:08:16,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:16,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:08:16,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:08:16,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:08:16,562 INFO L87 Difference]: Start difference. First operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2021-11-21 00:08:17,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:17,058 INFO L93 Difference]: Finished difference Result 215 states and 377 transitions. [2021-11-21 00:08:17,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:08:17,069 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 [2021-11-21 00:08:17,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:17,080 INFO L225 Difference]: With dead ends: 215 [2021-11-21 00:08:17,080 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 00:08:17,085 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 [2021-11-21 00:08:17,090 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:17,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 00:08:17,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 00:08:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 00:08:17,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:17,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-21 00:08:17,164 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-21 00:08:17,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:17,164 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-21 00:08:17,165 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) [2021-11-21 00:08:17,165 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-21 00:08:17,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:08:17,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:17,166 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:17,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:08:17,166 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:17,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:17,167 INFO L85 PathProgramCache]: Analyzing trace with hash 30908713, now seen corresponding path program 1 times [2021-11-21 00:08:17,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:17,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685417498] [2021-11-21 00:08:17,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:17,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:17,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:17,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:17,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685417498] [2021-11-21 00:08:17,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685417498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:17,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:17,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:08:17,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683825061] [2021-11-21 00:08:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:17,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:08:17,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:08:17,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:08:17,263 INFO L87 Difference]: Start difference. First operand 107 states and 125 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) [2021-11-21 00:08:19,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:19,042 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-21 00:08:19,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:08:19,049 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 [2021-11-21 00:08:19,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:19,051 INFO L225 Difference]: With dead ends: 219 [2021-11-21 00:08:19,051 INFO L226 Difference]: Without dead ends: 165 [2021-11-21 00:08:19,052 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 [2021-11-21 00:08:19,053 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:19,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-21 00:08:19,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-21 00:08:19,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-21 00:08:19,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:19,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-21 00:08:19,067 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-21 00:08:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:19,068 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-21 00:08:19,068 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) [2021-11-21 00:08:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-21 00:08:19,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 00:08:19,070 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:19,070 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:19,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:08:19,071 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:19,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:19,071 INFO L85 PathProgramCache]: Analyzing trace with hash -667749530, now seen corresponding path program 1 times [2021-11-21 00:08:19,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:19,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150532721] [2021-11-21 00:08:19,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:19,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:19,099 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:08:19,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [731705154] [2021-11-21 00:08:19,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:19,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:19,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:19,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:19,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:08:19,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:19,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:08:19,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:19,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:19,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:08:19,461 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:19,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150532721] [2021-11-21 00:08:19,462 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:08:19,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731705154] [2021-11-21 00:08:19,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731705154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:19,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:19,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:08:19,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387901739] [2021-11-21 00:08:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:19,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:08:19,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:08:19,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:19,465 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-11-21 00:08:20,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:20,298 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-21 00:08:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:08:20,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-11-21 00:08:20,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:20,304 INFO L225 Difference]: With dead ends: 265 [2021-11-21 00:08:20,305 INFO L226 Difference]: Without dead ends: 159 [2021-11-21 00:08:20,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:08:20,307 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:20,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-21 00:08:20,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-21 00:08:20,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-21 00:08:20,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:20,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-21 00:08:20,322 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-21 00:08:20,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:20,323 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-21 00:08:20,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-11-21 00:08:20,323 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-21 00:08:20,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:08:20,325 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:20,325 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:20,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 00:08:20,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:20,530 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:20,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:20,530 INFO L85 PathProgramCache]: Analyzing trace with hash -357184176, now seen corresponding path program 1 times [2021-11-21 00:08:20,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:20,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985142540] [2021-11-21 00:08:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:20,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:20,549 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:08:20,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1049126764] [2021-11-21 00:08:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:20,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:20,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:20,550 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:20,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:08:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:20,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:08:20,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:20,858 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 [2021-11-21 00:08:20,890 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 [2021-11-21 00:08:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 00:08:20,902 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:08:20,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:20,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985142540] [2021-11-21 00:08:20,905 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:08:20,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049126764] [2021-11-21 00:08:20,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049126764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:20,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:20,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:08:20,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693340743] [2021-11-21 00:08:20,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:20,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:08:20,908 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:20,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:08:20,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:08:20,909 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:24,007 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:08:24,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:24,475 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-21 00:08:24,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:08:24,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2021-11-21 00:08:24,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:24,488 INFO L225 Difference]: With dead ends: 201 [2021-11-21 00:08:24,488 INFO L226 Difference]: Without dead ends: 197 [2021-11-21 00:08:24,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:24,490 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:24,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:08:24,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-21 00:08:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-21 00:08:24,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:24,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-21 00:08:24,506 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-21 00:08:24,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:24,508 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-21 00:08:24,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:24,509 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-21 00:08:24,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 00:08:24,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:24,512 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:24,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:08:24,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:24,725 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:24,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:24,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1806423702, now seen corresponding path program 1 times [2021-11-21 00:08:24,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:24,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861477080] [2021-11-21 00:08:24,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:24,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:24,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:08:24,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1436728188] [2021-11-21 00:08:24,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:24,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:24,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:24,765 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:24,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:08:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:24,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:08:25,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 00:08:25,193 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:08:25,194 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861477080] [2021-11-21 00:08:25,194 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:08:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1436728188] [2021-11-21 00:08:25,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1436728188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:25,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:25,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:08:25,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959419760] [2021-11-21 00:08:25,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:25,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:08:25,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:25,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:08:25,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:08:25,197 INFO L87 Difference]: Start difference. First operand 154 states and 178 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:25,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:25,795 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-21 00:08:25,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:08:25,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-21 00:08:25,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:25,804 INFO L225 Difference]: With dead ends: 344 [2021-11-21 00:08:25,804 INFO L226 Difference]: Without dead ends: 206 [2021-11-21 00:08:25,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:25,806 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:25,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 175 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:08:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-21 00:08:25,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-21 00:08:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 00:08:25,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-21 00:08:25,821 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-21 00:08:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:25,822 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-21 00:08:25,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:25,822 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-21 00:08:25,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 00:08:25,824 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:25,824 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:25,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:08:26,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:26,049 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:26,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:26,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1808435595, now seen corresponding path program 1 times [2021-11-21 00:08:26,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:26,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059413780] [2021-11-21 00:08:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:26,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:26,066 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:08:26,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762153258] [2021-11-21 00:08:26,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:26,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:26,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:26,068 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:26,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:08:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:27,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:08:27,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:27,278 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:08:27,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:08:27,279 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059413780] [2021-11-21 00:08:27,279 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:08:27,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762153258] [2021-11-21 00:08:27,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762153258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:27,280 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:27,280 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:08:27,280 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155313473] [2021-11-21 00:08:27,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:27,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:08:27,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:08:27,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:08:27,282 INFO L87 Difference]: Start difference. First operand 199 states and 232 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:29,857 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:08:29,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:29,858 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-21 00:08:29,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:08:29,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-21 00:08:29,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:29,878 INFO L225 Difference]: With dead ends: 381 [2021-11-21 00:08:29,878 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:08:29,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:08:29,880 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:29,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-21 00:08:29,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:08:29,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 00:08:29,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:08:29,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-21 00:08:29,901 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-21 00:08:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:29,902 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-21 00:08:29,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:08:29,902 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-21 00:08:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 00:08:29,904 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:29,905 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:29,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-21 00:08:30,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 00:08:30,121 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:30,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1272133155, now seen corresponding path program 1 times [2021-11-21 00:08:30,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:30,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444874293] [2021-11-21 00:08:30,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:30,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:30,136 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:08:30,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2093511914] [2021-11-21 00:08:30,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:30,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:08:30,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:08:30,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:08:30,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42210e19-9ae4-46ca-9731-72b9d3571792/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:08:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:31,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 00:08:31,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:08:31,899 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:08:31,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:08:32,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:08:32,145 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:32,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444874293] [2021-11-21 00:08:32,146 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:08:32,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093511914] [2021-11-21 00:08:32,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093511914] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:08:32,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1569799404] [2021-11-21 00:08:32,178 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 00:08:32,178 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:08:32,183 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:08:32,189 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:08:32,189 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:08:32,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:08:32,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,391 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:08:32,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 00:08:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 00:08:32,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:08:32,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:08:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,644 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 00:08:32,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:08:32,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 52 treesize of output 49 [2021-11-21 00:08:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 00:08:32,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 00:08:32,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:32,839 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:08:32,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 00:08:34,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:08:34,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 00:08:34,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 00:08:34,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:08:34,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:08:34,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:08:34,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-21 00:08:34,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-21 00:08:34,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 00:08:34,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 00:08:34,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:34,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,043 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 00:08:35,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 127 treesize of output 138 [2021-11-21 00:08:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,152 INFO L354 Elim1Store]: treesize reduction 232, result has 10.1 percent of original size [2021-11-21 00:08:35,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 126 treesize of output 132 [2021-11-21 00:08:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:35,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-21 00:08:35,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:08:35,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:08:35,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:08:35,911 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:08:35,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-21 00:08:35,943 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:08:35,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-21 00:08:35,969 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:08:35,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-21 00:08:36,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:08:36,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:08:36,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:08:36,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:08:36,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 00:08:36,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 00:08:36,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 00:08:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:08:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:36,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 00:08:45,030 WARN L227 SmtUtils]: Spent 8.17s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:08:45,031 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:08:45,031 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 2847 treesize of output 2324 [2021-11-21 00:08:45,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:08:54,397 WARN L227 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:08:54,398 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:08:54,398 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 2948 treesize of output 2666 [2021-11-21 00:09:07,802 WARN L227 SmtUtils]: Spent 13.23s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:09:07,804 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 00:09:07,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 00:09:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,761 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 00:09:08,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-21 00:09:08,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:08,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:09,701 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 00:09:09,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-21 00:09:11,061 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:11,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:11,456 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 00:09:11,457 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 46 treesize of output 30 [2021-11-21 00:09:11,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,040 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 00:09:12,040 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 46 treesize of output 44 [2021-11-21 00:09:12,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:12,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1241 treesize of output 791 [2021-11-21 00:09:13,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:13,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,713 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:13,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:13,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1243 treesize of output 795 [2021-11-21 00:09:13,992 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:14,312 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:14,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:14,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1243 treesize of output 795 [2021-11-21 00:09:14,649 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:15,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:15,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,120 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:15,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,150 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:15,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:15,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,248 INFO L244 Elim1Store]: Index analysis took 177 ms [2021-11-21 00:09:15,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1252 treesize of output 798 [2021-11-21 00:09:15,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:15,841 INFO L244 Elim1Store]: Index analysis took 213 ms [2021-11-21 00:09:17,197 INFO L354 Elim1Store]: treesize reduction 582, result has 68.4 percent of original size [2021-11-21 00:09:17,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1252 treesize of output 2058 [2021-11-21 00:09:19,442 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:19,458 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:19,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:19,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:19,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:19,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:19,669 INFO L354 Elim1Store]: treesize reduction 23, result has 66.7 percent of original size [2021-11-21 00:09:19,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1243 treesize of output 841 [2021-11-21 00:09:20,064 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:21,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:21,639 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:21,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:21,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:21,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:21,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:21,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:21,761 INFO L244 Elim1Store]: Index analysis took 139 ms [2021-11-21 00:09:21,855 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:09:21,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 1231 treesize of output 1013 [2021-11-21 00:09:22,052 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:22,791 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:22,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:22,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:22,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:22,841 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 1222 treesize of output 792 [2021-11-21 00:09:23,103 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:23,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:09:23,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:23,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:24,107 INFO L354 Elim1Store]: treesize reduction 1152, result has 0.1 percent of original size [2021-11-21 00:09:24,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1231 treesize of output 795 [2021-11-21 00:09:24,253 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:26,328 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 00:09:26,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1343 treesize of output 1351 [2021-11-21 00:09:26,907 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:27,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:27,631 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 00:09:27,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-21 00:09:28,065 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:09:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:28,576 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-21 00:09:34,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:09:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver