./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/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_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/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_7520a1d9-c895-46d6-a345-8ec69f6d8577/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 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 --- 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 14:45:34,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:45:34,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:45:34,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:45:34,218 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:45:34,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:45:34,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:45:34,227 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:45:34,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:45:34,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:45:34,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:45:34,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:45:34,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:45:34,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:45:34,246 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:45:34,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:45:34,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:45:34,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:45:34,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:45:34,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:45:34,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:45:34,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:45:34,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:45:34,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:45:34,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:45:34,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:45:34,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:45:34,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:45:34,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:45:34,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:45:34,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:45:34,280 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:45:34,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:45:34,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:45:34,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:45:34,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:45:34,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:45:34,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:45:34,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:45:34,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:45:34,289 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:45:34,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:45:34,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:45:34,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:45:34,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:45:34,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:45:34,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:45:34,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:45:34,328 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:45:34,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:45:34,329 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:45:34,329 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:45:34,329 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:45:34,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:45:34,330 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:45:34,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:45:34,330 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:45:34,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:45:34,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:45:34,331 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:45:34,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:45:34,332 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:45:34,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:45:34,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:45:34,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:45:34,333 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:45:34,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:45:34,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:45:34,334 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:45:34,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:45:34,334 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:45:34,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:45:34,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:45:34,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:45:34,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:45:34,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:45:34,336 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:45:34,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:45:34,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:45:34,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:45:34,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:45:34,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:45:34,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:45:34,338 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_7520a1d9-c895-46d6-a345-8ec69f6d8577/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b724500cddd07446974ec59df8ac86aa980f4ff713324fa73d397377235cbe2 [2022-11-23 14:45:34,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:45:34,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:45:34,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:45:34,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:45:34,679 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:45:34,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-11-23 14:45:37,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:45:38,060 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:45:38,062 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i [2022-11-23 14:45:38,085 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/data/ae6fc8e8a/a91d1f0ae3e34680b70a8e6bc70bb07c/FLAG634c83b90 [2022-11-23 14:45:38,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/data/ae6fc8e8a/a91d1f0ae3e34680b70a8e6bc70bb07c [2022-11-23 14:45:38,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:45:38,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:45:38,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:45:38,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:45:38,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:45:38,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:38" (1/1) ... [2022-11-23 14:45:38,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7838de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:38, skipping insertion in model container [2022-11-23 14:45:38,120 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:45:38" (1/1) ... [2022-11-23 14:45:38,128 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:45:38,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:45:38,668 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_7520a1d9-c895-46d6-a345-8ec69f6d8577/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-11-23 14:45:38,844 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_7520a1d9-c895-46d6-a345-8ec69f6d8577/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-11-23 14:45:38,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:45:38,876 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:45:38,907 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_7520a1d9-c895-46d6-a345-8ec69f6d8577/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[33021,33034] [2022-11-23 14:45:39,011 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_7520a1d9-c895-46d6-a345-8ec69f6d8577/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-3.i[49681,49694] [2022-11-23 14:45:39,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:45:39,093 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:45:39,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39 WrapperNode [2022-11-23 14:45:39,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:45:39,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:45:39,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:45:39,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:45:39,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,250 INFO L138 Inliner]: procedures = 177, calls = 487, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1686 [2022-11-23 14:45:39,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:45:39,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:45:39,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:45:39,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:45:39,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,447 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:45:39,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:45:39,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:45:39,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:45:39,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (1/1) ... [2022-11-23 14:45:39,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:45:39,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:39,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:45:39,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:45:39,549 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:45:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-23 14:45:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-23 14:45:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:45:39,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:45:39,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-23 14:45:39,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:45:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:45:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:45:39,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:45:39,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:45:39,812 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:45:39,814 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:45:42,171 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:45:42,892 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:45:42,893 INFO L300 CfgBuilder]: Removed 100 assume(true) statements. [2022-11-23 14:45:42,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:42 BoogieIcfgContainer [2022-11-23 14:45:42,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:45:42,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:45:42,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:45:42,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:45:42,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:45:38" (1/3) ... [2022-11-23 14:45:42,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b9eed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:42, skipping insertion in model container [2022-11-23 14:45:42,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:45:39" (2/3) ... [2022-11-23 14:45:42,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72b9eed2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:45:42, skipping insertion in model container [2022-11-23 14:45:42,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:45:42" (3/3) ... [2022-11-23 14:45:42,911 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-3.i [2022-11-23 14:45:42,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:45:42,931 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:45:43,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:45:43,012 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;@4329e15a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:45:43,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:45:43,018 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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 14:45:43,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 14:45:43,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:43,027 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 14:45:43,028 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:43,035 INFO L85 PathProgramCache]: Analyzing trace with hash 274883441, now seen corresponding path program 1 times [2022-11-23 14:45:43,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:43,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749227476] [2022-11-23 14:45:43,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:43,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:43,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:43,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749227476] [2022-11-23 14:45:43,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:45:43,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17998232] [2022-11-23 14:45:43,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:43,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:45:43,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:43,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:45:43,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:45:43,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:43,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:45:43,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:43,532 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 14:45:43,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:43,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [17998232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:43,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:43,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:45:43,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684393965] [2022-11-23 14:45:43,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:43,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:45:43,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:43,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:45:43,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:45:43,587 INFO L87 Difference]: Start difference. First operand has 177 states, 161 states have (on average 1.813664596273292) internal successors, (292), 168 states have internal predecessors, (292), 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 14:45:44,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:44,643 INFO L93 Difference]: Finished difference Result 353 states and 632 transitions. [2022-11-23 14:45:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:45:44,652 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 14:45:44,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:44,662 INFO L225 Difference]: With dead ends: 353 [2022-11-23 14:45:44,662 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 14:45:44,666 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 14:45:44,669 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:44,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-23 14:45:44,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 14:45:44,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-23 14:45:44,720 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 14:45:44,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-23 14:45:44,726 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-23 14:45:44,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:44,727 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-23 14:45:44,728 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 14:45:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-23 14:45:44,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 14:45:44,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:44,733 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 14:45:44,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:45:44,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-23 14:45:44,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:44,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:44,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1671934868, now seen corresponding path program 1 times [2022-11-23 14:45:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:44,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913189409] [2022-11-23 14:45:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:44,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:45,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:45,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913189409] [2022-11-23 14:45:45,014 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-23 14:45:45,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397335123] [2022-11-23 14:45:45,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:45,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:45:45,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:45,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:45:45,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 14:45:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:45,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:45:45,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:45,403 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 14:45:45,403 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:45:45,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397335123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:45:45,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:45:45,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:45:45,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306066003] [2022-11-23 14:45:45,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:45:45,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:45:45,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:45:45,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:45:45,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:45:45,407 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 14:45:47,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-23 14:45:47,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:45:47,899 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-23 14:45:47,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:45:47,907 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 14:45:47,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:45:47,910 INFO L225 Difference]: With dead ends: 342 [2022-11-23 14:45:47,910 INFO L226 Difference]: Without dead ends: 290 [2022-11-23 14:45:47,911 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 14:45:47,912 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:45:47,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-23 14:45:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-23 14:45:47,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-23 14:45:47,934 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 14:45:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-23 14:45:47,936 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-23 14:45:47,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:45:47,936 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-23 14:45:47,936 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 14:45:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-23 14:45:47,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-23 14:45:47,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:45:47,939 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 14:45:47,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-23 14:45:48,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-23 14:45:48,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:45:48,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:45:48,147 INFO L85 PathProgramCache]: Analyzing trace with hash 700872651, now seen corresponding path program 1 times [2022-11-23 14:45:48,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:45:48,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350166336] [2022-11-23 14:45:48,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:48,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:45:48,414 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:45:48,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [193267593] [2022-11-23 14:45:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:45:48,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:45:48,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:45:48,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:45:48,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 14:45:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:45:49,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:45:49,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:45:49,855 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 14:45:49,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:45:49,958 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 14:45:49,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:45:49,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350166336] [2022-11-23 14:45:49,959 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:45:49,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [193267593] [2022-11-23 14:45:49,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [193267593] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:45:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1758929227] [2022-11-23 14:45:49,986 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-23 14:45:49,986 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:45:50,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:45:50,009 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:45:50,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:45:50,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,249 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:45:50,250 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 14:45:50,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,268 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 14:45:50,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,327 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 14:45:50,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,341 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:45:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,358 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-23 14:45:50,358 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 14:45:50,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,419 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:45:50,420 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 14:45:50,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,452 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 14:45:50,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,466 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 14:45:50,937 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 14:45:50,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:50,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,017 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 14:45:51,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,071 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 14:45:51,116 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 14:45:51,569 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 14:45:51,588 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 14:45:51,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,661 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 14:45:51,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:45:51,744 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 14:45:51,790 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:45:58,774 WARN L233 SmtUtils]: Spent 5.34s 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 14:46:07,164 WARN L233 SmtUtils]: Spent 6.29s 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 14:46:07,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1758929227] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:46:07,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:46:07,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-23 14:46:07,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189001004] [2022-11-23 14:46:07,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:46:07,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:46:07,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:46:07,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:46:07,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 14:46:07,172 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 14:46:09,572 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 14:46:11,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:46:19,211 WARN L539 Checker$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 14:46:21,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:46:21,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:46:21,527 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-23 14:46:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:46:21,528 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 14:46:21,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:46:21,530 INFO L225 Difference]: With dead ends: 310 [2022-11-23 14:46:21,530 INFO L226 Difference]: Without dead ends: 161 [2022-11-23 14:46:21,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=62, Invalid=69, Unknown=1, NotChecked=0, Total=132 [2022-11-23 14:46:21,533 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 14 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:46:21,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 602 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-11-23 14:46:21,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-23 14:46:21,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-23 14:46:21,558 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 14:46:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-23 14:46:21,560 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-23 14:46:21,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:46:21,561 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-23 14:46:21,561 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 14:46:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-23 14:46:21,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-23 14:46:21,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:46:21,564 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 14:46:21,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:46:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:46:21,778 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:46:21,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:46:21,779 INFO L85 PathProgramCache]: Analyzing trace with hash -385397690, now seen corresponding path program 1 times [2022-11-23 14:46:21,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:46:21,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563283096] [2022-11-23 14:46:21,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:21,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:46:22,012 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:46:22,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1346758887] [2022-11-23 14:46:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:46:22,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:46:22,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:46:22,019 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:46:22,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:46:23,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:46:23,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:46:23,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:46:23,394 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 14:46:23,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:46:23,569 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 14:46:23,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:46:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563283096] [2022-11-23 14:46:23,570 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:46:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346758887] [2022-11-23 14:46:23,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346758887] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:46:23,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1281613929] [2022-11-23 14:46:23,574 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:46:23,575 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:46:23,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:46:23,575 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:46:23,575 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:46:23,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,780 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:46:23,780 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 14:46:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,795 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 14:46:23,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,855 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:46:23,855 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 14:46:23,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,875 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 14:46:23,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,924 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:46:23,925 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 14:46:23,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,941 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:46:23,942 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 14:46:23,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:23,962 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 14:46:24,287 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 14:46:24,307 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 14:46:24,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,362 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 14:46:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,483 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 14:46:24,561 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 14:46:24,580 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 14:46:24,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,659 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 14:46:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,733 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 14:46:24,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,822 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 14:46:24,856 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 14:46:24,886 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 14:46:24,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,972 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:46:24,972 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 14:46:24,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:24,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,067 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:46:25,068 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 14:46:25,808 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 14:46:25,830 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 14:46:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,888 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 14:46:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:25,975 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 14:46:26,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,107 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 9897003 treesize of output 5376293 [2022-11-23 14:46:26,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,163 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 9897003 treesize of output 5376293 [2022-11-23 14:46:26,200 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 14:46:26,215 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 14:46:26,268 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 14:46:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,305 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 14:46:26,351 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 14:46:26,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,438 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:46:26,438 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 14:46:26,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:46:26,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-23 14:46:26,928 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-23 14:46:27,050 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:46:34,381 WARN L233 SmtUtils]: Spent 5.31s 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 14:46:41,820 WARN L233 SmtUtils]: Spent 5.28s 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 14:46:52,321 WARN L233 SmtUtils]: Spent 6.35s 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 14:47:06,470 WARN L233 SmtUtils]: Spent 7.98s 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 14:47:19,176 WARN L233 SmtUtils]: Spent 6.51s 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 14:47:19,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1281613929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:47:19,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 14:47:19,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-23 14:47:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673763040] [2022-11-23 14:47:19,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:47:19,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 14:47:19,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:47:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 14:47:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:47:19,871 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 14:47:22,525 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 14:47:24,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:26,857 WARN L539 Checker$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 14:47:29,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:31,038 WARN L539 Checker$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 14:47:33,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:35,107 WARN L539 Checker$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 14:47:37,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:39,144 WARN L539 Checker$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 14:47:43,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-23 14:47:47,131 WARN L539 Checker$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 14:47:48,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:49,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-11-23 14:47:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:47:51,671 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-23 14:47:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-23 14:47:51,672 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 14:47:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:47:51,673 INFO L225 Difference]: With dead ends: 315 [2022-11-23 14:47:51,673 INFO L226 Difference]: Without dead ends: 166 [2022-11-23 14:47:51,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 52.8s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-11-23 14:47:51,675 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 10 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:47:51,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 611 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 376 Invalid, 10 Unknown, 0 Unchecked, 31.7s Time] [2022-11-23 14:47:51,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-23 14:47:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-23 14:47:51,710 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 14:47:51,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-23 14:47:51,711 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-23 14:47:51,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:47:51,712 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-23 14:47:51,712 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 14:47:51,712 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-23 14:47:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-23 14:47:51,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:47:51,715 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 14:47:51,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:47:51,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:51,925 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:47:51,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:47:51,926 INFO L85 PathProgramCache]: Analyzing trace with hash -102741374, now seen corresponding path program 1 times [2022-11-23 14:47:51,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:47:51,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884355521] [2022-11-23 14:47:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:51,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:47:52,118 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-23 14:47:52,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359685330] [2022-11-23 14:47:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:47:52,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:47:52,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:47:52,119 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:47:52,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7520a1d9-c895-46d6-a345-8ec69f6d8577/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-23 14:47:53,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:47:53,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 14:47:53,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:47:53,544 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 14:47:53,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:47:53,692 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 14:47:53,692 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:47:53,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884355521] [2022-11-23 14:47:53,693 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-23 14:47:53,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359685330] [2022-11-23 14:47:53,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359685330] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:47:53,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1799566593] [2022-11-23 14:47:53,697 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-23 14:47:53,697 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:47:53,697 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:47:53,697 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:47:53,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:47:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,807 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-23 14:47:53,808 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 14:47:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,822 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 14:47:53,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,851 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 14:47:53,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,895 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-23 14:47:53,899 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 14:47:53,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,968 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-23 14:47:53,969 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 14:47:53,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:53,984 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-23 14:47:53,985 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 14:47:54,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,084 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 14:47:54,396 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 14:47:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,455 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 14:47:54,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,503 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 14:47:54,545 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 14:47:54,586 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 14:47:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,648 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 14:47:54,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,708 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 14:47:54,797 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 14:47:54,858 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 14:47:54,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,941 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-23 14:47:54,941 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 14:47:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:54,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,042 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-23 14:47:55,042 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 14:47:55,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,106 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 14:47:55,148 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 14:47:55,307 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 14:47:55,312 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 14:47:55,320 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 14:47:55,346 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:47:55,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-23 14:47:55,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-23 14:47:55,388 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 14:47:55,400 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 14:47:55,407 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 14:47:55,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,497 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 14:47:55,532 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 14:47:55,553 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 14:47:55,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 14:47:55,810 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 14:47:55,830 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 14:47:55,850 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 14:47:57,674 INFO L217 Elim1Store]: Index analysis took 1329 ms [2022-11-23 14:48:08,739 WARN L233 SmtUtils]: Spent 11.06s 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 14:48:08,739 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-23 14:48:08,740 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 14:48:12,423 INFO L217 Elim1Store]: Index analysis took 1532 ms [2022-11-23 14:48:13,593 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-23 14:48:13,593 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 14:52:28,436 WARN L233 SmtUtils]: Spent 4.24m on a formula simplification. DAG size of input: 198 DAG size of output: 104 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 14:52:28,437 INFO L321 Elim1Store]: treesize reduction 1636, result has 23.4 percent of original size [2022-11-23 14:52:28,437 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 7904 treesize of output 5832 [2022-11-23 14:52:29,008 INFO L217 Elim1Store]: Index analysis took 179 ms [2022-11-23 14:54:34,054 WARN L233 SmtUtils]: Spent 2.08m 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 14:54:34,054 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-23 14:54:34,055 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 7135 treesize of output 5975 [2022-11-23 14:54:40,492 INFO L217 Elim1Store]: Index analysis took 4280 ms