./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur --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 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:35:17,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:35:17,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:35:17,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:35:17,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:35:17,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:35:17,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:35:17,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:35:17,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:35:17,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:35:17,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:35:17,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:35:17,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:35:17,221 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:35:17,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:35:17,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:35:17,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:35:17,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:35:17,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:35:17,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:35:17,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:35:17,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:35:17,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:35:17,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:35:17,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:35:17,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:35:17,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:35:17,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:35:17,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:35:17,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:35:17,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:35:17,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:35:17,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:35:17,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:35:17,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:35:17,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:35:17,273 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:35:17,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:35:17,274 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:35:17,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:35:17,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:35:17,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:35:17,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:35:17,322 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:35:17,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:35:17,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:35:17,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:35:17,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:35:17,325 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:35:17,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:35:17,326 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:35:17,326 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:35:17,327 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:35:17,327 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:35:17,327 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:35:17,328 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:35:17,328 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:35:17,328 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:35:17,329 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:35:17,329 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:35:17,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:35:17,330 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:35:17,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:35:17,331 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:35:17,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:35:17,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:35:17,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:35:17,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:35:17,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:35:17,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:35:17,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:35:17,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:35:17,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:35:17,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:35:17,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:17,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:35:17,335 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:35:17,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:35:17,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:35:17,336 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:35:17,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:35:17,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:35:17,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:35:17,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2022-11-26 00:35:17,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:35:17,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:35:17,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:35:17,632 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:35:17,633 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:35:17,634 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-11-26 00:35:20,814 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:35:21,124 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:35:21,125 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-11-26 00:35:21,144 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/data/202b5ab86/362a8a7291af441290250df98009b9a1/FLAG7c0ed64cc [2022-11-26 00:35:21,162 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/data/202b5ab86/362a8a7291af441290250df98009b9a1 [2022-11-26 00:35:21,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:35:21,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:35:21,169 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:21,169 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:35:21,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:35:21,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:21" (1/1) ... [2022-11-26 00:35:21,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a4006c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:21, skipping insertion in model container [2022-11-26 00:35:21,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:35:21" (1/1) ... [2022-11-26 00:35:21,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:35:21,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:35:21,867 WARN L237 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_f88026ad-9f03-4a96-ba8a-322056cb1484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-11-26 00:35:22,083 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:35:22,093 WARN L237 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_f88026ad-9f03-4a96-ba8a-322056cb1484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-11-26 00:35:22,113 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:22,124 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:35:22,156 WARN L237 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_f88026ad-9f03-4a96-ba8a-322056cb1484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-11-26 00:35:22,240 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:35:22,242 WARN L237 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_f88026ad-9f03-4a96-ba8a-322056cb1484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-11-26 00:35:22,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:35:22,317 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:35:22,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22 WrapperNode [2022-11-26 00:35:22,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:35:22,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:22,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:35:22,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:35:22,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,431 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-26 00:35:22,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:35:22,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:35:22,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:35:22,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:35:22,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,543 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:35:22,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:35:22,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:35:22,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:35:22,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (1/1) ... [2022-11-26 00:35:22,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:35:22,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:22,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:35:22,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:35:22,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:35:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:35:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:35:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:35:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:35:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:35:22,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:35:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:35:22,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:35:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:35:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:35:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:35:22,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:35:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:35:22,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:35:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:35:23,071 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:35:23,074 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:35:25,208 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:35:25,748 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:35:25,748 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-26 00:35:25,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:25 BoogieIcfgContainer [2022-11-26 00:35:25,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:35:25,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:35:25,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:35:25,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:35:25,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:35:21" (1/3) ... [2022-11-26 00:35:25,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53708f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:25, skipping insertion in model container [2022-11-26 00:35:25,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:35:22" (2/3) ... [2022-11-26 00:35:25,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53708f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:35:25, skipping insertion in model container [2022-11-26 00:35:25,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:35:25" (3/3) ... [2022-11-26 00:35:25,760 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2022-11-26 00:35:25,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:35:25,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:35:25,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:35:25,838 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6e2922a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:35:25,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:35:25,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:35:25,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:35:25,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:25,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:35:25,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:35:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-26 00:35:25,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:25,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407586144] [2022-11-26 00:35:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:25,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:26,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:26,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407586144] [2022-11-26 00:35:26,036 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:35:26,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220882358] [2022-11-26 00:35:26,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:26,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:35:26,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:26,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:35:26,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:35:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:26,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:35:26,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:35:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:26,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:35:26,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220882358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:26,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:26,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:35:26,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151846106] [2022-11-26 00:35:26,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:26,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:35:26,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:26,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:35:26,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:35:26,387 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-26 00:35:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:27,258 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-26 00:35:27,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:35:27,263 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-26 00:35:27,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:27,272 INFO L225 Difference]: With dead ends: 329 [2022-11-26 00:35:27,272 INFO L226 Difference]: Without dead ends: 150 [2022-11-26 00:35:27,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:35:27,280 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:27,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-26 00:35:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-26 00:35:27,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-26 00:35:27,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 141 states have internal predecessors, (161), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:35:27,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-26 00:35:27,334 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-26 00:35:27,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:27,335 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-26 00:35:27,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-11-26 00:35:27,335 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-26 00:35:27,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-26 00:35:27,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:27,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:27,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:35:27,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-26 00:35:27,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:35:27,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:27,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-26 00:35:27,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:27,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712254789] [2022-11-26 00:35:27,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:27,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:27,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:27,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712254789] [2022-11-26 00:35:27,619 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-26 00:35:27,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063790014] [2022-11-26 00:35:27,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:27,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:35:27,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:27,627 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:35:27,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:35:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:27,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:35:27,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:35:27,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:27,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:35:27,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063790014] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:27,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:27,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:35:27,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223195950] [2022-11-26 00:35:27,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:27,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:27,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:27,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:27,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:27,991 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-11-26 00:35:29,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:29,247 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-26 00:35:29,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:29,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2022-11-26 00:35:29,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:29,253 INFO L225 Difference]: With dead ends: 342 [2022-11-26 00:35:29,253 INFO L226 Difference]: Without dead ends: 290 [2022-11-26 00:35:29,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:29,255 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:29,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-26 00:35:29,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-26 00:35:29,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-26 00:35:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 136 states have (on average 1.1911764705882353) internal successors, (162), 142 states have internal predecessors, (162), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:35:29,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-26 00:35:29,280 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-26 00:35:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:29,280 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-26 00:35:29,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 2 states have internal predecessors, (17), 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) [2022-11-26 00:35:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-26 00:35:29,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-26 00:35:29,282 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:29,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:29,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:35:29,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:35:29,484 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:35:29,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:29,484 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-26 00:35:29,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:29,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327648332] [2022-11-26 00:35:29,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:29,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:29,749 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:35:29,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239963511] [2022-11-26 00:35:29,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:29,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:35:29,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:29,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:35:29,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:35:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:31,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:35:31,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:35:31,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:31,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:35:31,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:35:31,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:31,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327648332] [2022-11-26 00:35:31,453 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:35:31,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239963511] [2022-11-26 00:35:31,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239963511] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:35:31,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [404132487] [2022-11-26 00:35:31,489 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-26 00:35:31,489 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:35:31,504 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:35:31,509 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:35:31,510 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:35:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,777 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:35:31,778 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:35:31,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,820 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:35:31,820 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:35:31,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:35:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,912 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:35:31,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:35:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-26 00:35:31,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,952 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:35:31,954 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:35:31,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:31,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:35:32,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:35:32,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:32,530 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:35:32,573 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:35:32,592 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:35:33,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:35:33,043 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:35:33,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,112 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:35:33,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:35:33,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:35:33,213 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:35:41,952 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:35:49,825 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:35:49,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [404132487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:49,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:35:49,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-26 00:35:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184010891] [2022-11-26 00:35:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:49,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:35:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:35:49,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-26 00:35:49,835 INFO L87 Difference]: Start difference. First operand 151 states and 184 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-11-26 00:35:52,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:35:55,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:35:57,079 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:36:00,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:00,244 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-26 00:36:00,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:36:00,245 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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 61 [2022-11-26 00:36:00,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:00,246 INFO L225 Difference]: With dead ends: 313 [2022-11-26 00:36:00,246 INFO L226 Difference]: Without dead ends: 164 [2022-11-26 00:36:00,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 17.5s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-26 00:36:00,249 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 1 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:00,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 402 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 9.5s Time] [2022-11-26 00:36:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-26 00:36:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-26 00:36:00,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 146 states have (on average 1.178082191780822) internal successors, (172), 152 states have internal predecessors, (172), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-26 00:36:00,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-26 00:36:00,271 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-26 00:36:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:00,271 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-26 00:36:00,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 7 states have internal predecessors, (61), 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) [2022-11-26 00:36:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-26 00:36:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-26 00:36:00,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:00,275 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:00,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:00,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:00,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:36:00,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:00,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-26 00:36:00,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:00,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469533965] [2022-11-26 00:36:00,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:00,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:00,674 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:36:00,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1466615851] [2022-11-26 00:36:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:00,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:00,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:00,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:00,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:36:01,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:01,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:36:01,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:36:02,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:02,178 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:36:02,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:02,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469533965] [2022-11-26 00:36:02,178 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:36:02,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466615851] [2022-11-26 00:36:02,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466615851] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:36:02,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1386626621] [2022-11-26 00:36:02,184 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:36:02,184 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:36:02,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:36:02,185 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:36:02,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:36:02,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,309 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:36:02,310 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:36:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:36:02,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,381 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:36:02,382 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:36:02,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:36:02,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,453 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:36:02,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:36:02,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:36:02,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:36:02,497 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-11-26 00:36:02,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:36:02,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:02,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-11-26 00:36:02,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:36:03,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:36:03,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:36:03,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:36:03,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,122 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:03,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:03,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:36:03,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:36:03,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,365 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:36:03,366 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:36:03,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,458 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:36:03,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:36:03,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:03,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:04,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:36:04,232 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:36:04,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:36:04,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,334 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:36:04,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:36:04,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:04,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,531 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:04,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:36:04,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,656 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:36:04,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:36:04,720 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:36:04,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,801 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:36:04,802 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:36:04,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:36:04,896 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:36:04,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:36:05,315 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-26 00:36:05,435 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:36:13,991 WARN L233 SmtUtils]: Spent 5.44s on a formula simplification. DAG size of input: 235 DAG size of output: 220 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:36:21,894 WARN L233 SmtUtils]: Spent 5.79s on a formula simplification. DAG size of input: 251 DAG size of output: 236 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:36:33,615 WARN L233 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 262 DAG size of output: 248 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:36:49,059 WARN L233 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:03,160 WARN L233 SmtUtils]: Spent 7.90s on a formula simplification. DAG size of input: 284 DAG size of output: 262 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:37:03,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1386626621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:03,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-26 00:37:03,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-26 00:37:03,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670829667] [2022-11-26 00:37:03,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:03,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-26 00:37:03,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:03,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-26 00:37:03,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=172, Unknown=10, NotChecked=0, Total=272 [2022-11-26 00:37:03,904 INFO L87 Difference]: Start difference. First operand 161 states and 194 transitions. Second operand has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:37:09,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:12,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:14,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:16,233 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:18,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:20,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:22,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:24,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:26,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-26 00:37:30,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:37:32,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:32,297 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-26 00:37:32,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-26 00:37:32,298 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2022-11-26 00:37:32,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:32,299 INFO L225 Difference]: With dead ends: 315 [2022-11-26 00:37:32,300 INFO L226 Difference]: Without dead ends: 166 [2022-11-26 00:37:32,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 61.6s TimeCoverageRelationStatistics Valid=100, Invalid=196, Unknown=10, NotChecked=0, Total=306 [2022-11-26 00:37:32,301 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 1 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:32,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 402 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 224 Invalid, 9 Unknown, 0 Unchecked, 25.2s Time] [2022-11-26 00:37:32,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-26 00:37:32,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-26 00:37:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 150 states have (on average 1.1733333333333333) internal successors, (176), 156 states have internal predecessors, (176), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (12), 7 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-26 00:37:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-26 00:37:32,333 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-26 00:37:32,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:32,334 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-26 00:37:32,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.666666666666667) internal successors, (68), 11 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-26 00:37:32,334 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-26 00:37:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-26 00:37:32,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:32,337 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:32,352 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:37:32,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:32,549 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:37:32,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:32,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-26 00:37:32,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:32,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139617839] [2022-11-26 00:37:32,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:32,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:32,700 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:37:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35948443] [2022-11-26 00:37:32,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:32,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:32,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:32,703 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:32,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f88026ad-9f03-4a96-ba8a-322056cb1484/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:37:34,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:34,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:37:34,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:34,192 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:37:34,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:37:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-26 00:37:34,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:34,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139617839] [2022-11-26 00:37:34,348 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:37:34,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35948443] [2022-11-26 00:37:34,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35948443] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:37:34,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2139150663] [2022-11-26 00:37:34,353 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-26 00:37:34,353 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:37:34,354 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:37:34,354 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:37:34,355 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:37:34,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,473 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:37:34,473 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:34,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:37:34,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,517 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-26 00:37:34,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,536 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:37:34,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-11-26 00:37:34,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,599 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-26 00:37:34,600 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-26 00:37:34,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,626 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:37:34,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-26 00:37:34,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:34,714 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:37:34,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-26 00:37:35,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:37:35,153 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-26 00:37:35,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,212 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-11-26 00:37:35,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-11-26 00:37:35,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:37:35,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-26 00:37:35,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:37:35,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:37:35,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:37:35,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,709 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-26 00:37:35,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 74 [2022-11-26 00:37:35,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,829 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-26 00:37:35,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-26 00:37:35,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:35,905 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-11-26 00:37:35,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-26 00:37:36,139 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:36,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-26 00:37:36,151 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:36,226 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:37:36,226 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-26 00:37:36,269 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-26 00:37:36,270 INFO L350 Elim1Store]: Elim1 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 49 treesize of output 52 [2022-11-26 00:37:36,311 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-26 00:37:36,311 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 46 [2022-11-26 00:37:36,367 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:36,375 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:36,383 INFO L350 Elim1Store]: Elim1 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 [2022-11-26 00:37:36,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:37:36,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:37:36,571 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:37:36,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:37:36,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-11-26 00:37:36,839 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-26 00:37:36,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-26 00:37:39,688 INFO L217 Elim1Store]: Index analysis took 1530 ms [2022-11-26 00:37:46,497 WARN L233 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 109 DAG size of output: 31 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:37:46,497 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-26 00:37:46,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 10752723 treesize of output 10752742 [2022-11-26 00:37:47,733 INFO L217 Elim1Store]: Index analysis took 1037 ms [2022-11-26 00:37:48,488 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-26 00:37:48,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 10752718 treesize of output 10752722 [2022-11-26 00:41:45,182 WARN L233 SmtUtils]: Spent 3.94m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:41:45,183 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-26 00:41:45,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-26 00:41:45,952 INFO L217 Elim1Store]: Index analysis took 308 ms [2022-11-26 00:43:44,041 WARN L233 SmtUtils]: Spent 1.97m on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 00:43:44,041 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-26 00:43:44,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-26 00:43:50,677 INFO L217 Elim1Store]: Index analysis took 5156 ms