./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS --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 c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- 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-8393723 [2022-11-19 06:56:57,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:56:57,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:56:57,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:56:57,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:56:57,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:56:57,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:56:57,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:56:57,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:56:57,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:56:57,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:56:57,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:56:57,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:56:57,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:56:57,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:56:57,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:56:57,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:56:57,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:56:57,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:56:57,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:56:57,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:56:57,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:56:57,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:56:57,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:56:57,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:56:57,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:56:57,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:56:57,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:56:57,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:56:57,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:56:57,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:56:57,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:56:57,274 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:56:57,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:56:57,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:56:57,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:56:57,277 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:56:57,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:56:57,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:56:57,278 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:56:57,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:56:57,280 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:56:57,305 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:56:57,305 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:56:57,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:56:57,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:56:57,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:56:57,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:56:57,307 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:56:57,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:56:57,308 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:56:57,309 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:56:57,309 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:56:57,309 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:56:57,309 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:56:57,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:56:57,310 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:56:57,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:56:57,311 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:56:57,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:56:57,312 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:56:57,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:56:57,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:56:57,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:56:57,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:57,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:56:57,313 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:56:57,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:56:57,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:56:57,314 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:56:57,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:56:57,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:56:57,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:56:57,314 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_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2022-11-19 06:56:57,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:56:57,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:56:57,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:56:57,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:56:57,560 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:56:57,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-11-19 06:56:57,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/data/0c580ebed/5fdf97097d864fd8a671d0eb908b1437/FLAG901e37903 [2022-11-19 06:56:58,272 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:56:58,273 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2022-11-19 06:56:58,297 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/data/0c580ebed/5fdf97097d864fd8a671d0eb908b1437/FLAG901e37903 [2022-11-19 06:56:58,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/data/0c580ebed/5fdf97097d864fd8a671d0eb908b1437 [2022-11-19 06:56:58,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:56:58,476 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:56:58,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:58,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:56:58,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:56:58,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1379a318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:58, skipping insertion in model container [2022-11-19 06:56:58,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:56:58" (1/1) ... [2022-11-19 06:56:58,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:56:58,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:56:59,108 WARN L234 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_68b99557-f9d4-4695-ab05-94147d98359c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-11-19 06:56:59,313 WARN L234 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_68b99557-f9d4-4695-ab05-94147d98359c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-11-19 06:56:59,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:59,347 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:56:59,374 WARN L234 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_68b99557-f9d4-4695-ab05-94147d98359c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[33021,33034] [2022-11-19 06:56:59,431 WARN L234 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_68b99557-f9d4-4695-ab05-94147d98359c/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i[49681,49694] [2022-11-19 06:56:59,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:56:59,476 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:56:59,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59 WrapperNode [2022-11-19 06:56:59,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:56:59,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:59,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:56:59,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:56:59,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,631 INFO L138 Inliner]: procedures = 177, calls = 439, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-11-19 06:56:59,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:56:59,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:56:59,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:56:59,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:56:59,642 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:56:59,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:56:59,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:56:59,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:56:59,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (1/1) ... [2022-11-19 06:56:59,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:56:59,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:56:59,844 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:56:59,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:56:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:56:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 06:56:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 06:56:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:56:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:56:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:56:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:56:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:56:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:56:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:56:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:56:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:56:59,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:56:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:56:59,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:56:59,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:57:00,236 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:57:00,238 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:57:02,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:57:03,130 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:57:03,130 INFO L300 CfgBuilder]: Removed 92 assume(true) statements. [2022-11-19 06:57:03,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:03 BoogieIcfgContainer [2022-11-19 06:57:03,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:57:03,139 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:57:03,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:57:03,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:57:03,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:56:58" (1/3) ... [2022-11-19 06:57:03,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7100a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:03, skipping insertion in model container [2022-11-19 06:57:03,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:56:59" (2/3) ... [2022-11-19 06:57:03,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b7100a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:03, skipping insertion in model container [2022-11-19 06:57:03,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:03" (3/3) ... [2022-11-19 06:57:03,149 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-2.i [2022-11-19 06:57:03,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:57:03,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 06:57:03,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:57:03,259 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;@5b8bf6c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:57:03,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 06:57:03,265 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-19 06:57:03,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 06:57:03,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:03,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 06:57:03,274 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:03,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:03,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1765117460, now seen corresponding path program 1 times [2022-11-19 06:57:03,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:03,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627110563] [2022-11-19 06:57:03,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:03,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:03,429 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:03,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627110563] [2022-11-19 06:57:03,430 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:57:03,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411762919] [2022-11-19 06:57:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:03,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:03,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:03,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:57:03,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:57:03,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:03,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-19 06:57:03,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:03,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:57:03,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:57:03,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411762919] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:03,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:03,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:57:03,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207821133] [2022-11-19 06:57:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:03,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 06:57:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 06:57:03,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 06:57:03,800 INFO L87 Difference]: Start difference. First operand has 165 states, 149 states have (on average 1.8120805369127517) internal successors, (270), 156 states have internal predecessors, (270), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:57:04,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:04,662 INFO L93 Difference]: Finished difference Result 329 states and 588 transitions. [2022-11-19 06:57:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 06:57:04,667 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 [2022-11-19 06:57:04,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:04,677 INFO L225 Difference]: With dead ends: 329 [2022-11-19 06:57:04,677 INFO L226 Difference]: Without dead ends: 150 [2022-11-19 06:57:04,681 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 [2022-11-19 06:57:04,684 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:04,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-19 06:57:04,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-19 06:57:04,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2022-11-19 06:57:04,729 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) [2022-11-19 06:57:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2022-11-19 06:57:04,733 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 6 [2022-11-19 06:57:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:04,733 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2022-11-19 06:57:04,734 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) [2022-11-19 06:57:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2022-11-19 06:57:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-19 06:57:04,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:04,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:57:04,752 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 06:57:04,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 06:57:04,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:04,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:04,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1566679301, now seen corresponding path program 1 times [2022-11-19 06:57:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:04,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559162114] [2022-11-19 06:57:04,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:04,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:05,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:05,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559162114] [2022-11-19 06:57:05,019 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:57:05,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519229629] [2022-11-19 06:57:05,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:05,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:05,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:05,022 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:57:05,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:57:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:05,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:57:05,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:05,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:57:05,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:57:05,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519229629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:05,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:05,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 06:57:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417087032] [2022-11-19 06:57:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:05,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:57:05,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:05,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:57:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:57:05,367 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) [2022-11-19 06:57:06,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:06,578 INFO L93 Difference]: Finished difference Result 342 states and 425 transitions. [2022-11-19 06:57:06,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:57:06,582 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 [2022-11-19 06:57:06,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:06,584 INFO L225 Difference]: With dead ends: 342 [2022-11-19 06:57:06,584 INFO L226 Difference]: Without dead ends: 290 [2022-11-19 06:57:06,585 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 [2022-11-19 06:57:06,586 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 149 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:06,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 335 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 06:57:06,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-19 06:57:06,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 151. [2022-11-19 06:57:06,603 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) [2022-11-19 06:57:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 184 transitions. [2022-11-19 06:57:06,605 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 184 transitions. Word has length 17 [2022-11-19 06:57:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:06,605 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 184 transitions. [2022-11-19 06:57:06,605 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) [2022-11-19 06:57:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 184 transitions. [2022-11-19 06:57:06,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-19 06:57:06,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:06,607 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] [2022-11-19 06:57:06,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:57:06,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:06,814 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:06,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:06,815 INFO L85 PathProgramCache]: Analyzing trace with hash -867190139, now seen corresponding path program 1 times [2022-11-19 06:57:06,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:06,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392625719] [2022-11-19 06:57:06,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:06,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:07,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:57:07,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556487707] [2022-11-19 06:57:07,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:07,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:07,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:07,074 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:57:07,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:57:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:08,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 3112 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:57:08,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:57:08,588 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:57:08,698 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 06:57:08,698 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:08,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392625719] [2022-11-19 06:57:08,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:57:08,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556487707] [2022-11-19 06:57:08,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556487707] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:57:08,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1949364367] [2022-11-19 06:57:08,719 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2022-11-19 06:57:08,719 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:57:08,771 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:57:08,777 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:57:08,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:57:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:08,929 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 06:57:08,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-19 06:57:08,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:08,964 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:57:08,965 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 [2022-11-19 06:57:09,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,027 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 [2022-11-19 06:57:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,070 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:57:09,071 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 [2022-11-19 06:57:09,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,094 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 [2022-11-19 06:57:09,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,112 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:09,114 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 [2022-11-19 06:57:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,142 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 [2022-11-19 06:57:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,728 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 [2022-11-19 06:57:09,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:09,790 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 [2022-11-19 06:57:09,841 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 [2022-11-19 06:57:09,862 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 [2022-11-19 06:57:10,361 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 [2022-11-19 06:57:10,381 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 [2022-11-19 06:57:10,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,440 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 [2022-11-19 06:57:10,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:10,490 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 [2022-11-19 06:57:10,540 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:57:19,050 WARN L233 SmtUtils]: Spent 5.36s 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) [2022-11-19 06:57:27,292 WARN L233 SmtUtils]: Spent 6.13s 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) [2022-11-19 06:57:27,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1949364367] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:27,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:57:27,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-11-19 06:57:27,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256141645] [2022-11-19 06:57:27,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:27,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 06:57:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:27,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 06:57:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 06:57:27,299 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) [2022-11-19 06:57:30,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:57:33,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:57:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:57:33,727 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions. [2022-11-19 06:57:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 06:57:33,727 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 [2022-11-19 06:57:33,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:57:33,729 INFO L225 Difference]: With dead ends: 310 [2022-11-19 06:57:33,729 INFO L226 Difference]: Without dead ends: 161 [2022-11-19 06:57:33,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-11-19 06:57:33,731 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 8 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:57:33,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 405 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 156 Invalid, 1 Unknown, 11 Unchecked, 6.4s Time] [2022-11-19 06:57:33,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-11-19 06:57:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2022-11-19 06:57:33,757 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) [2022-11-19 06:57:33,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 194 transitions. [2022-11-19 06:57:33,759 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 194 transitions. Word has length 61 [2022-11-19 06:57:33,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:57:33,759 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 194 transitions. [2022-11-19 06:57:33,760 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) [2022-11-19 06:57:33,760 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 194 transitions. [2022-11-19 06:57:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-19 06:57:33,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:33,762 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] [2022-11-19 06:57:33,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:57:33,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:33,977 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:33,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:33,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1835922908, now seen corresponding path program 1 times [2022-11-19 06:57:33,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:33,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418761288] [2022-11-19 06:57:33,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:33,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:34,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:57:34,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1422408787] [2022-11-19 06:57:34,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:34,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:57:34,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:34,159 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:57:34,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:57:35,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:35,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 2249 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:57:35,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:57:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:57:35,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:57:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 06:57:35,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:35,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418761288] [2022-11-19 06:57:35,578 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:57:35,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422408787] [2022-11-19 06:57:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422408787] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:57:35,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [889607139] [2022-11-19 06:57:35,586 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 06:57:35,586 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:57:35,588 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:57:35,588 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:57:35,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:57:35,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,720 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:57:35,720 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 [2022-11-19 06:57:35,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,737 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 [2022-11-19 06:57:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,798 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:57:35,799 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 [2022-11-19 06:57:35,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,820 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 [2022-11-19 06:57:35,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,869 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:57:35,870 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 [2022-11-19 06:57:35,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,893 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 [2022-11-19 06:57:35,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:35,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:57:35,910 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 [2022-11-19 06:57:36,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,422 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 [2022-11-19 06:57:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,467 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 [2022-11-19 06:57:36,507 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 [2022-11-19 06:57:36,527 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 [2022-11-19 06:57:36,562 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 06:57:36,575 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 [2022-11-19 06:57:36,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,633 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 [2022-11-19 06:57:36,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,691 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 [2022-11-19 06:57:36,774 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 [2022-11-19 06:57:36,804 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 [2022-11-19 06:57:36,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,878 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:57:36,878 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 [2022-11-19 06:57:36,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:36,972 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:57:36,973 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 [2022-11-19 06:57:37,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,026 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 [2022-11-19 06:57:37,796 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 [2022-11-19 06:57:37,816 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 [2022-11-19 06:57:37,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,864 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 [2022-11-19 06:57:37,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:37,946 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 [2022-11-19 06:57:38,010 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 [2022-11-19 06:57:38,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,078 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 [2022-11-19 06:57:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,129 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 [2022-11-19 06:57:38,157 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 [2022-11-19 06:57:38,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,253 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 [2022-11-19 06:57:38,286 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 [2022-11-19 06:57:38,314 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 [2022-11-19 06:57:38,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,395 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:57:38,395 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 [2022-11-19 06:57:38,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:57:38,484 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:57:38,484 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 [2022-11-19 06:57:38,923 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 253 for LOIs [2022-11-19 06:57:39,036 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 06:57:47,201 WARN L233 SmtUtils]: Spent 5.18s 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) [2022-11-19 06:57:55,579 WARN L233 SmtUtils]: Spent 6.25s 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) [2022-11-19 06:58:09,065 WARN L233 SmtUtils]: Spent 7.35s 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) [2022-11-19 06:58:23,959 WARN L233 SmtUtils]: Spent 8.74s 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) [2022-11-19 06:58:36,338 WARN L233 SmtUtils]: Spent 6.21s 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) [2022-11-19 06:58:37,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [889607139] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:37,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 06:58:37,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-11-19 06:58:37,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533710727] [2022-11-19 06:58:37,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:37,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-19 06:58:37,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:37,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-19 06:58:37,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=171, Unknown=11, NotChecked=0, Total=272 [2022-11-19 06:58:37,299 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) [2022-11-19 06:58:41,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:58:43,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:58:45,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:45,709 INFO L93 Difference]: Finished difference Result 315 states and 384 transitions. [2022-11-19 06:58:45,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 06:58:45,710 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 [2022-11-19 06:58:45,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:45,711 INFO L225 Difference]: With dead ends: 315 [2022-11-19 06:58:45,711 INFO L226 Difference]: Without dead ends: 166 [2022-11-19 06:58:45,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 203 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 58.3s TimeCoverageRelationStatistics Valid=90, Invalid=171, Unknown=11, NotChecked=0, Total=272 [2022-11-19 06:58:45,713 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 9 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 272 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:45,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 812 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 217 Invalid, 0 Unknown, 272 Unchecked, 8.4s Time] [2022-11-19 06:58:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-19 06:58:45,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-11-19 06:58:45,740 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) [2022-11-19 06:58:45,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 200 transitions. [2022-11-19 06:58:45,741 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 200 transitions. Word has length 74 [2022-11-19 06:58:45,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:45,742 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 200 transitions. [2022-11-19 06:58:45,742 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) [2022-11-19 06:58:45,742 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 200 transitions. [2022-11-19 06:58:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-19 06:58:45,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:45,745 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] [2022-11-19 06:58:45,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:58:45,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:45,957 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:45,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:45,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1163140644, now seen corresponding path program 1 times [2022-11-19 06:58:45,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:45,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976141051] [2022-11-19 06:58:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:45,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:46,119 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:58:46,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [777778654] [2022-11-19 06:58:46,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:46,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:58:46,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:46,121 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:58:46,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68b99557-f9d4-4695-ab05-94147d98359c/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:58:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:47,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 2264 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 06:58:47,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:58:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:58:47,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:58:47,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-19 06:58:47,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:47,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976141051] [2022-11-19 06:58:47,696 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:58:47,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777778654] [2022-11-19 06:58:47,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777778654] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:58:47,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1997307649] [2022-11-19 06:58:47,700 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2022-11-19 06:58:47,700 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:58:47,700 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:58:47,700 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:58:47,700 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:58:47,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,804 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 06:58:47,805 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 [2022-11-19 06:58:47,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,816 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 [2022-11-19 06:58:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,839 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 06:58:47,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,855 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:58:47,856 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 [2022-11-19 06:58:47,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,904 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 06:58:47,904 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 [2022-11-19 06:58:47,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,926 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 [2022-11-19 06:58:47,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,942 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 [2022-11-19 06:58:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:47,993 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 06:58:47,994 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 [2022-11-19 06:58:48,350 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 [2022-11-19 06:58:48,369 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 [2022-11-19 06:58:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,415 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 [2022-11-19 06:58:48,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,468 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 [2022-11-19 06:58:48,520 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 [2022-11-19 06:58:48,533 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 [2022-11-19 06:58:48,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,593 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 [2022-11-19 06:58:48,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,653 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 [2022-11-19 06:58:48,731 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 [2022-11-19 06:58:48,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,799 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-11-19 06:58:48,800 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 [2022-11-19 06:58:48,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,882 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 06:58:48,883 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 [2022-11-19 06:58:48,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:48,935 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 [2022-11-19 06:58:48,979 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 [2022-11-19 06:58:49,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:58:49,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-19 06:58:49,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 06:58:49,253 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:58:49,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 06:58:49,291 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 06:58:49,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 06:58:49,323 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 06:58:49,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 06:58:49,363 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 [2022-11-19 06:58:49,369 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 [2022-11-19 06:58:49,376 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 [2022-11-19 06:58:49,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,466 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 [2022-11-19 06:58:49,499 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 [2022-11-19 06:58:49,519 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 [2022-11-19 06:58:49,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:58:49,728 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 [2022-11-19 06:58:49,750 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 [2022-11-19 06:58:49,770 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 [2022-11-19 06:58:51,480 INFO L217 Elim1Store]: Index analysis took 1397 ms [2022-11-19 06:58:58,791 WARN L233 SmtUtils]: Spent 7.31s 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) [2022-11-19 06:58:58,791 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 06:58:58,792 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 [2022-11-19 06:58:59,844 INFO L217 Elim1Store]: Index analysis took 830 ms [2022-11-19 06:59:00,589 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 06:59:00,590 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 [2022-11-19 07:02:18,174 WARN L233 SmtUtils]: Spent 3.29m on a formula simplification. DAG size of input: 198 DAG size of output: 106 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:02:18,174 INFO L321 Elim1Store]: treesize reduction 1611, result has 24.6 percent of original size [2022-11-19 07:02:18,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 6 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 18 case distinctions, treesize of input 8576 treesize of output 6519 [2022-11-19 07:02:18,749 INFO L217 Elim1Store]: Index analysis took 253 ms [2022-11-19 07:04:11,103 WARN L233 SmtUtils]: Spent 1.87m 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) [2022-11-19 07:04:11,103 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:04:11,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 8524 treesize of output 7357 [2022-11-19 07:04:16,841 INFO L217 Elim1Store]: Index analysis took 4421 ms