./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 14:11:27,129 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:11:27,131 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:11:27,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:11:27,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:11:27,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:11:27,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:11:27,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:11:27,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:11:27,165 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:11:27,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:11:27,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:11:27,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:11:27,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:11:27,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:11:27,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:11:27,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:11:27,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:11:27,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:11:27,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:11:27,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:11:27,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:11:27,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:11:27,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:11:27,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:11:27,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:11:27,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:11:27,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:11:27,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:11:27,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:11:27,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:11:27,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:11:27,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:11:27,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:11:27,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:11:27,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:11:27,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:11:27,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:11:27,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:11:27,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:11:27,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:11:27,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:11:27,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:11:27,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:11:27,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:11:27,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:11:27,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:11:27,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:11:27,273 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:11:27,273 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:11:27,274 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:11:27,274 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:11:27,274 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:11:27,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:11:27,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:11:27,279 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:11:27,279 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:11:27,279 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:11:27,279 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:11:27,280 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:11:27,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:11:27,280 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:11:27,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:11:27,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:11:27,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:11:27,282 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:11:27,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:11:27,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:11:27,282 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:11:27,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:11:27,283 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:11:27,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:11:27,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:11:27,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:11:27,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:11:27,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:11:27,285 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:11:27,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:11:27,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:11:27,286 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:11:27,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:11:27,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:11:27,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:11:27,287 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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2022-11-23 14:11:27,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:11:27,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:11:27,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:11:27,646 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:11:27,647 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:11:27,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-11-23 14:11:30,779 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:11:31,234 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:11:31,235 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2022-11-23 14:11:31,255 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/data/287f1250d/50c8e7b70ece49b5999e4d15cf9df683/FLAGab44bb66c [2022-11-23 14:11:31,271 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/data/287f1250d/50c8e7b70ece49b5999e4d15cf9df683 [2022-11-23 14:11:31,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:11:31,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:11:31,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:11:31,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:11:31,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:11:31,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:31" (1/1) ... [2022-11-23 14:11:31,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f3c06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:31, skipping insertion in model container [2022-11-23 14:11:31,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:11:31" (1/1) ... [2022-11-23 14:11:31,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:11:31,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:11:31,787 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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-11-23 14:11:31,921 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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-11-23 14:11:31,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:11:31,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:11:31,995 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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[33021,33034] [2022-11-23 14:11:32,119 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_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i[49681,49694] [2022-11-23 14:11:32,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:11:32,163 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:11:32,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32 WrapperNode [2022-11-23 14:11:32,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:11:32,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:11:32,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:11:32,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:11:32,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,328 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-23 14:11:32,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:11:32,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:11:32,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:11:32,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:11:32,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,513 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:11:32,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:11:32,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:11:32,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:11:32,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (1/1) ... [2022-11-23 14:11:32,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:11:32,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:11:32,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:11:32,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:11:32,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:11:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:11:32,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:11:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:11:32,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:11:32,627 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:11:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:11:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:11:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:11:32,627 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:11:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:11:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:11:32,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:11:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:11:32,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:11:32,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:11:33,000 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:11:33,002 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:11:35,378 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:11:36,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:11:36,008 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-23 14:11:36,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:36 BoogieIcfgContainer [2022-11-23 14:11:36,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:11:36,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:11:36,016 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:11:36,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:11:36,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:11:31" (1/3) ... [2022-11-23 14:11:36,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1326346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:36, skipping insertion in model container [2022-11-23 14:11:36,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:11:32" (2/3) ... [2022-11-23 14:11:36,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1326346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:11:36, skipping insertion in model container [2022-11-23 14:11:36,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:11:36" (3/3) ... [2022-11-23 14:11:36,023 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2022-11-23 14:11:36,043 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:11:36,044 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:11:36,102 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:11:36,110 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;@7ef567a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:11:36,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:11:36,117 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) [2022-11-23 14:11:36,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:11:36,127 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:36,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:11:36,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:11:36,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:36,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-23 14:11:36,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:36,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414245418] [2022-11-23 14:11:36,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:36,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:36,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:36,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414245418] [2022-11-23 14:11:36,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:11:36,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733130983] [2022-11-23 14:11:36,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:36,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:11:36,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:11:36,313 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:11:36,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:11:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:36,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:11:36,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:11:36,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:11:36,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:11:36,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733130983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:36,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:36,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:11:36,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686820878] [2022-11-23 14:11:36,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:36,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:11:36,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:36,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:11:36,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:11:36,670 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) [2022-11-23 14:11:37,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:37,747 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-23 14:11:37,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:11:37,754 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 [2022-11-23 14:11:37,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:37,765 INFO L225 Difference]: With dead ends: 329 [2022-11-23 14:11:37,765 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 14:11:37,770 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 [2022-11-23 14:11:37,774 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s 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, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:37,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:11:37,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 14:11:37,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 14:11:37,823 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) [2022-11-23 14:11:37,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 14:11:37,827 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 14:11:37,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:37,827 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 14:11:37,828 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) [2022-11-23 14:11:37,828 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 14:11:37,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:11:37,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:37,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:11:37,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 14:11:38,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:11:38,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:11:38,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:38,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-23 14:11:38,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:38,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746128452] [2022-11-23 14:11:38,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:38,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:38,081 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746128452] [2022-11-23 14:11:38,082 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:11:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140037053] [2022-11-23 14:11:38,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:38,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:11:38,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:11:38,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:11:38,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:11:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:38,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:11:38,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:11:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:11:38,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:11:38,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140037053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:11:38,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:11:38,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:11:38,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927166430] [2022-11-23 14:11:38,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:11:38,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:11:38,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:11:38,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:11:38,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:11:38,438 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) [2022-11-23 14:11:39,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:11:39,760 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 14:11:39,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:11:39,764 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 [2022-11-23 14:11:39,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:11:39,767 INFO L225 Difference]: With dead ends: 342 [2022-11-23 14:11:39,767 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 14:11:39,768 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 [2022-11-23 14:11:39,769 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:11:39,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-23 14:11:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 14:11:39,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 14:11:39,792 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) [2022-11-23 14:11:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 14:11:39,794 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 14:11:39,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:11:39,794 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 14:11:39,795 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) [2022-11-23 14:11:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 14:11:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:11:39,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:11:39,797 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] [2022-11-23 14:11:39,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:11:40,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:11:40,005 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:11:40,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:11:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-23 14:11:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:11:40,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301495786] [2022-11-23 14:11:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:11:40,291 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:11:40,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [448881522] [2022-11-23 14:11:40,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:11:40,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:11:40,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:11:40,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:11:40,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:11:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:11:41,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:11:41,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:11:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:11:41,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:11:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:11:41,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:11:41,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301495786] [2022-11-23 14:11:41,958 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:11:41,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448881522] [2022-11-23 14:11:41,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448881522] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:11:41,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [97270974] [2022-11-23 14:11:41,982 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 14:11:41,982 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:11:41,986 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:11:41,993 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:11:41,994 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:11:42,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,244 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-23 14:11:42,245 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 [2022-11-23 14:11:42,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,280 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:11:42,281 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 [2022-11-23 14:11:42,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,329 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 [2022-11-23 14:11:42,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,381 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:11:42,381 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 [2022-11-23 14:11:42,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,411 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 [2022-11-23 14:11:42,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:11:42,433 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 [2022-11-23 14:11:42,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:42,467 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 [2022-11-23 14:11:43,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,039 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 [2022-11-23 14:11:43,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,109 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 [2022-11-23 14:11:43,176 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 [2022-11-23 14:11:43,207 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 [2022-11-23 14:11:43,754 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 [2022-11-23 14:11:43,777 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 [2022-11-23 14:11:43,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,843 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 [2022-11-23 14:11:43,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:11:43,900 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 [2022-11-23 14:11:43,955 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:11:53,036 WARN L233 SmtUtils]: Spent 5.85s 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) [2022-11-23 14:12:01,444 WARN L233 SmtUtils]: Spent 6.28s 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) [2022-11-23 14:12:01,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [97270974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:12:01,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:12:01,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:12:01,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600685982] [2022-11-23 14:12:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:12:01,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:12:01,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:12:01,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:12:01,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-23 14:12:01,453 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) [2022-11-23 14:12:07,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:12:09,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:12:11,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:12:16,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:12:17,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:12:17,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:12:17,896 INFO L93 Difference]: Finished difference Result 313 states and 382 transitions. [2022-11-23 14:12:17,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:12:17,897 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 [2022-11-23 14:12:17,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:12:17,899 INFO L225 Difference]: With dead ends: 313 [2022-11-23 14:12:17,899 INFO L226 Difference]: Without dead ends: 164 [2022-11-23 14:12:17,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-11-23 14:12:17,901 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 9 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 7 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:12:17,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 402 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 183 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2022-11-23 14:12:17,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-23 14:12:17,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2022-11-23 14:12:17,937 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) [2022-11-23 14:12:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 14:12:17,939 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 14:12:17,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:12:17,940 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 14:12:17,940 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) [2022-11-23 14:12:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 14:12:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:12:17,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:12:17,942 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] [2022-11-23 14:12:17,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:12:18,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:12:18,156 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:12:18,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:12:18,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-23 14:12:18,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:12:18,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873323309] [2022-11-23 14:12:18,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:12:18,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:12:18,382 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:12:18,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204587676] [2022-11-23 14:12:18,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:12:18,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:12:18,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:12:18,384 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:12:18,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:12:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:12:19,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:12:19,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:12:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:12:19,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:12:19,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-23 14:12:19,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:12:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873323309] [2022-11-23 14:12:19,825 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:12:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204587676] [2022-11-23 14:12:19,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204587676] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:12:19,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1485680443] [2022-11-23 14:12:19,829 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:12:19,829 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:12:19,829 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:12:19,829 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:12:19,830 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:12:19,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:19,949 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:12:19,950 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 [2022-11-23 14:12:19,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:19,971 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 [2022-11-23 14:12:20,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,031 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:12:20,032 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 [2022-11-23 14:12:20,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,050 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 [2022-11-23 14:12:20,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,091 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:12:20,092 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 [2022-11-23 14:12:20,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,115 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 [2022-11-23 14:12:20,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:12:20,174 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 [2022-11-23 14:12:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,548 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 [2022-11-23 14:12:20,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,592 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 [2022-11-23 14:12:20,630 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 [2022-11-23 14:12:20,660 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 [2022-11-23 14:12:20,703 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 [2022-11-23 14:12:20,714 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 [2022-11-23 14:12:20,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,773 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 [2022-11-23 14:12:20,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,868 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 [2022-11-23 14:12:20,944 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 [2022-11-23 14:12:20,977 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 [2022-11-23 14:12:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:20,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,057 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:12:21,057 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 [2022-11-23 14:12:21,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,150 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:12:21,150 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 [2022-11-23 14:12:21,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,204 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 [2022-11-23 14:12:21,906 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 [2022-11-23 14:12:21,924 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 [2022-11-23 14:12:21,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:21,981 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 [2022-11-23 14:12:22,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,031 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 [2022-11-23 14:12:22,097 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 [2022-11-23 14:12:22,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,166 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 [2022-11-23 14:12:22,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,247 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 [2022-11-23 14:12:22,277 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 [2022-11-23 14:12:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,356 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 [2022-11-23 14:12:22,392 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 [2022-11-23 14:12:22,421 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 [2022-11-23 14:12:22,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,511 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:12:22,511 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 [2022-11-23 14:12:22,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:12:22,604 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:12:22,604 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 [2022-11-23 14:12:23,027 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 14:12:23,149 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:12:29,506 WARN L233 SmtUtils]: Spent 5.12s 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) [2022-11-23 14:12:40,152 WARN L233 SmtUtils]: Spent 8.52s 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) [2022-11-23 14:12:50,209 WARN L233 SmtUtils]: Spent 5.93s 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) [2022-11-23 14:13:03,633 WARN L233 SmtUtils]: Spent 7.28s 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) [2022-11-23 14:13:16,393 WARN L233 SmtUtils]: Spent 6.57s 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) [2022-11-23 14:13:17,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1485680443] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:13:17,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:13:17,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:13:17,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772951972] [2022-11-23 14:13:17,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:13:17,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:13:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:13:17,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:13:17,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:13:17,229 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) [2022-11-23 14:13:19,992 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] [2022-11-23 14:13:22,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:24,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:26,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:28,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:30,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:32,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:34,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:36,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:40,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:13:44,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:13:44,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:13:44,684 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 14:13:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:13:44,685 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 [2022-11-23 14:13:44,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:13:44,686 INFO L225 Difference]: With dead ends: 315 [2022-11-23 14:13:44,686 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 14:13:44,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 54.1s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:13:44,688 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 17 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.4s IncrementalHoareTripleChecker+Time [2022-11-23 14:13:44,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 402 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 10 Unknown, 0 Unchecked, 27.4s Time] [2022-11-23 14:13:44,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 14:13:44,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 14:13:44,717 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) [2022-11-23 14:13:44,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 14:13:44,718 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 14:13:44,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:13:44,719 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 14:13:44,719 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) [2022-11-23 14:13:44,719 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 14:13:44,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:13:44,722 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:13:44,722 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] [2022-11-23 14:13:44,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-23 14:13:44,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:13:44,931 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:13:44,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:13:44,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-23 14:13:44,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:13:44,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817200071] [2022-11-23 14:13:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:13:44,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:13:45,143 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:13:45,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1093061494] [2022-11-23 14:13:45,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:13:45,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:13:45,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:13:45,145 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:13:45,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c84b064-6dcc-4ae9-a109-5db3efdebcb6/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:13:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:13:46,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:13:46,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:13:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:13:46,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:13:46,740 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:13:46,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:13:46,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817200071] [2022-11-23 14:13:46,740 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:13:46,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093061494] [2022-11-23 14:13:46,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093061494] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:13:46,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1238871985] [2022-11-23 14:13:46,744 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:13:46,744 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:13:46,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:13:46,745 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:13:46,745 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:13:46,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,835 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:13:46,835 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 [2022-11-23 14:13:46,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,848 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 [2022-11-23 14:13:46,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,872 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:13:46,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,891 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:13:46,891 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 [2022-11-23 14:13:46,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,943 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:13:46,943 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 [2022-11-23 14:13:46,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,965 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 [2022-11-23 14:13:46,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:46,982 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 [2022-11-23 14:13:47,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,100 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:13:47,100 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 [2022-11-23 14:13:47,377 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 [2022-11-23 14:13:47,397 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 [2022-11-23 14:13:47,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,450 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 [2022-11-23 14:13:47,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,494 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 [2022-11-23 14:13:47,542 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 [2022-11-23 14:13:47,556 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 [2022-11-23 14:13:47,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,623 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 [2022-11-23 14:13:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,732 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 [2022-11-23 14:13:47,806 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 [2022-11-23 14:13:47,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,876 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:13:47,877 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 [2022-11-23 14:13:47,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:47,965 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:13:47,965 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 [2022-11-23 14:13:48,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,039 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 [2022-11-23 14:13:48,080 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 [2022-11-23 14:13:48,233 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 [2022-11-23 14:13:48,237 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 [2022-11-23 14:13:48,243 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 [2022-11-23 14:13:48,298 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:13:48,298 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 [2022-11-23 14:13:48,337 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-23 14:13:48,337 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 [2022-11-23 14:13:48,373 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:13:48,373 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 [2022-11-23 14:13:48,423 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 [2022-11-23 14:13:48,429 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 [2022-11-23 14:13:48,436 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 [2022-11-23 14:13:48,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,520 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 [2022-11-23 14:13:48,556 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 [2022-11-23 14:13:48,624 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 [2022-11-23 14:13:48,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:13:48,814 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 [2022-11-23 14:13:48,833 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 [2022-11-23 14:13:48,852 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 [2022-11-23 14:13:53,220 INFO L217 Elim1Store]: Index analysis took 3269 ms [2022-11-23 14:13:58,908 WARN L233 SmtUtils]: Spent 5.68s 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) [2022-11-23 14:13:58,908 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:13:58,909 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 [2022-11-23 14:14:00,542 INFO L217 Elim1Store]: Index analysis took 1356 ms [2022-11-23 14:14:01,229 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:14:01,230 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 [2022-11-23 14:17:26,792 WARN L233 SmtUtils]: Spent 3.42m 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) [2022-11-23 14:17:26,793 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-23 14:17:26,793 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 [2022-11-23 14:17:27,888 INFO L217 Elim1Store]: Index analysis took 471 ms [2022-11-23 14:19:10,007 WARN L233 SmtUtils]: Spent 1.70m 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) [2022-11-23 14:19:10,007 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:19:10,008 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 [2022-11-23 14:19:15,098 INFO L217 Elim1Store]: Index analysis took 3655 ms