./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7 --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 3f1ddce0da39afb2e81d3f6974a6168ade2d49435b1ce063903c0017c6d40b05 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:21:27,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:21:27,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:21:27,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:21:27,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:21:27,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:21:27,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:21:27,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:21:27,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:21:27,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:21:27,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:21:27,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:21:27,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:21:27,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:21:27,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:21:27,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:21:27,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:21:27,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:21:27,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:21:27,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:21:27,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:21:27,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:21:27,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:21:27,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:21:27,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:21:27,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:21:27,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:21:27,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:21:27,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:21:27,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:21:27,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:21:27,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:21:27,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:21:27,383 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:21:27,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:21:27,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:21:27,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:21:27,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:21:27,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:21:27,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:21:27,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:21:27,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 19:21:27,426 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:21:27,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:21:27,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:21:27,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:21:27,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:21:27,429 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:21:27,429 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:21:27,430 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:21:27,430 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:21:27,431 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:21:27,431 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:21:27,432 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:21:27,432 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:21:27,432 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:21:27,433 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:21:27,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:21:27,437 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:21:27,437 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:21:27,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:21:27,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:21:27,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:21:27,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:21:27,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:21:27,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:21:27,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:21:27,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:21:27,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:21:27,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:21:27,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:21:27,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:21:27,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:21:27,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:21:27,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:21:27,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:21:27,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:21:27,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:21:27,448 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:21:27,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:21:27,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:21:27,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:21:27,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:21:27,449 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f1ddce0da39afb2e81d3f6974a6168ade2d49435b1ce063903c0017c6d40b05 [2021-11-25 19:21:27,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:21:27,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:21:27,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:21:27,810 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:21:27,810 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:21:27,812 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2021-11-25 19:21:27,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/data/eb1fdb6f5/4a3297cf9fe148db8ee72ddccf36e699/FLAG3e4942bb6 [2021-11-25 19:21:28,675 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:21:28,676 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i [2021-11-25 19:21:28,698 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/data/eb1fdb6f5/4a3297cf9fe148db8ee72ddccf36e699/FLAG3e4942bb6 [2021-11-25 19:21:28,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/data/eb1fdb6f5/4a3297cf9fe148db8ee72ddccf36e699 [2021-11-25 19:21:28,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:21:28,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:21:28,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:21:28,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:21:28,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:21:28,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:21:28" (1/1) ... [2021-11-25 19:21:28,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41acf389 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:28, skipping insertion in model container [2021-11-25 19:21:28,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:21:28" (1/1) ... [2021-11-25 19:21:28,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:21:28,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:21:29,532 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i[33022,33035] [2021-11-25 19:21:29,920 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:21:29,940 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:21:29,974 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test10-2.i[33022,33035] [2021-11-25 19:21:30,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:21:30,220 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:21:30,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30 WrapperNode [2021-11-25 19:21:30,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:21:30,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:21:30,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:21:30,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:21:30,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,318 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,505 INFO L137 Inliner]: procedures = 177, calls = 575, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2330 [2021-11-25 19:21:30,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:21:30,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:21:30,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:21:30,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:21:30,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,546 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,717 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:21:30,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:21:30,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:21:30,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:21:30,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (1/1) ... [2021-11-25 19:21:30,761 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:21:30,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:30,791 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:21:30,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:21:30,863 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2021-11-25 19:21:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2021-11-25 19:21:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:21:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:21:30,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:21:30,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:21:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:21:30,865 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:21:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:21:30,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:21:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:21:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:21:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 19:21:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:21:30,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:21:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:21:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:21:30,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:21:31,332 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:21:31,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:21:33,368 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:21:34,338 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:21:34,339 INFO L301 CfgBuilder]: Removed 160 assume(true) statements. [2021-11-25 19:21:34,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:21:34 BoogieIcfgContainer [2021-11-25 19:21:34,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:21:34,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:21:34,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:21:34,349 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:21:34,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:21:28" (1/3) ... [2021-11-25 19:21:34,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6732bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:21:34, skipping insertion in model container [2021-11-25 19:21:34,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:21:30" (2/3) ... [2021-11-25 19:21:34,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6732bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:21:34, skipping insertion in model container [2021-11-25 19:21:34,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:21:34" (3/3) ... [2021-11-25 19:21:34,353 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test10-2.i [2021-11-25 19:21:34,359 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:21:34,359 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:21:34,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:21:34,432 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:21:34,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:21:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 19:21:34,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 19:21:34,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:34,485 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:34,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:34,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:34,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1013260908, now seen corresponding path program 1 times [2021-11-25 19:21:34,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:34,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584379724] [2021-11-25 19:21:34,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:34,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:34,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:21:34,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584379724] [2021-11-25 19:21:34,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584379724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:34,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:34,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:21:34,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856996495] [2021-11-25 19:21:34,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:34,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 19:21:34,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:34,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 19:21:34,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:21:34,813 INFO L87 Difference]: Start difference. First operand has 265 states, 246 states have (on average 1.8252032520325203) internal successors, (449), 251 states have internal predecessors, (449), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:36,421 INFO L93 Difference]: Finished difference Result 529 states and 961 transitions. [2021-11-25 19:21:36,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 19:21:36,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 19:21:36,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:36,440 INFO L225 Difference]: With dead ends: 529 [2021-11-25 19:21:36,440 INFO L226 Difference]: Without dead ends: 249 [2021-11-25 19:21:36,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 19:21:36,450 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:36,452 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 288 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:21:36,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-25 19:21:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-25 19:21:36,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 231 states have (on average 1.199134199134199) internal successors, (277), 236 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 19:21:36,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 304 transitions. [2021-11-25 19:21:36,520 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 304 transitions. Word has length 12 [2021-11-25 19:21:36,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:36,520 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 304 transitions. [2021-11-25 19:21:36,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:36,521 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 304 transitions. [2021-11-25 19:21:36,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 19:21:36,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:36,525 INFO L514 BasicCegarLoop]: 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] [2021-11-25 19:21:36,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:21:36,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:36,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:36,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1808167895, now seen corresponding path program 1 times [2021-11-25 19:21:36,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:36,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53212819] [2021-11-25 19:21:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:36,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:36,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:21:36,624 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:36,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53212819] [2021-11-25 19:21:36,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53212819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:36,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:36,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:21:36,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320343833] [2021-11-25 19:21:36,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:36,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:21:36,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:36,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:21:36,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:21:36,630 INFO L87 Difference]: Start difference. First operand 249 states and 304 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:39,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:39,648 INFO L93 Difference]: Finished difference Result 425 states and 521 transitions. [2021-11-25 19:21:39,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:21:39,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-25 19:21:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:39,653 INFO L225 Difference]: With dead ends: 425 [2021-11-25 19:21:39,653 INFO L226 Difference]: Without dead ends: 276 [2021-11-25 19:21:39,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:21:39,656 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 27 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:39,657 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 770 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 19:21:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-25 19:21:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 251. [2021-11-25 19:21:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 233 states have (on average 1.1974248927038627) internal successors, (279), 238 states have internal predecessors, (279), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-25 19:21:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 306 transitions. [2021-11-25 19:21:39,684 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 306 transitions. Word has length 24 [2021-11-25 19:21:39,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:39,684 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 306 transitions. [2021-11-25 19:21:39,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 306 transitions. [2021-11-25 19:21:39,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 19:21:39,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:39,689 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:39,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:21:39,689 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:39,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1787107309, now seen corresponding path program 1 times [2021-11-25 19:21:39,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:39,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572962940] [2021-11-25 19:21:39,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:39,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:39,852 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:39,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293703718] [2021-11-25 19:21:39,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:39,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:39,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:39,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:39,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:21:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:40,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 1676 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:21:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:21:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:21:41,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:21:41,066 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:41,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572962940] [2021-11-25 19:21:41,066 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:21:41,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293703718] [2021-11-25 19:21:41,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293703718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:41,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:41,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:21:41,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944980894] [2021-11-25 19:21:41,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:41,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:21:41,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:41,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:21:41,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:21:41,077 INFO L87 Difference]: Start difference. First operand 251 states and 306 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:44,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:21:44,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:44,485 INFO L93 Difference]: Finished difference Result 614 states and 746 transitions. [2021-11-25 19:21:44,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:21:44,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-25 19:21:44,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:44,489 INFO L225 Difference]: With dead ends: 614 [2021-11-25 19:21:44,490 INFO L226 Difference]: Without dead ends: 366 [2021-11-25 19:21:44,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:21:44,492 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 120 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:44,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 532 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 19:21:44,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-25 19:21:44,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-25 19:21:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.1799410029498525) internal successors, (400), 344 states have internal predecessors, (400), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 19:21:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 437 transitions. [2021-11-25 19:21:44,521 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 437 transitions. Word has length 49 [2021-11-25 19:21:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:44,521 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 437 transitions. [2021-11-25 19:21:44,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:21:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 437 transitions. [2021-11-25 19:21:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-25 19:21:44,526 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:44,526 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:44,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-25 19:21:44,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:44,742 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:44,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:44,742 INFO L85 PathProgramCache]: Analyzing trace with hash -338981431, now seen corresponding path program 1 times [2021-11-25 19:21:44,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:44,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784755160] [2021-11-25 19:21:44,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:44,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:44,849 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:44,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1399522932] [2021-11-25 19:21:44,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:44,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:44,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:44,862 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:44,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:21:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:45,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-25 19:21:45,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:21:45,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:21:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:21:45,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 19:21:45,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:21:45,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:21:45,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:45,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784755160] [2021-11-25 19:21:45,905 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:21:45,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399522932] [2021-11-25 19:21:45,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399522932] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:45,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:45,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:21:45,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883836869] [2021-11-25 19:21:45,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:45,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:21:45,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:45,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:21:45,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:21:45,908 INFO L87 Difference]: Start difference. First operand 362 states and 437 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:21:48,893 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:21:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:51,019 INFO L93 Difference]: Finished difference Result 674 states and 815 transitions. [2021-11-25 19:21:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:21:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2021-11-25 19:21:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:51,023 INFO L225 Difference]: With dead ends: 674 [2021-11-25 19:21:51,024 INFO L226 Difference]: Without dead ends: 362 [2021-11-25 19:21:51,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:21:51,026 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 12 mSDsluCounter, 533 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:51,027 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 772 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-11-25 19:21:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-11-25 19:21:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2021-11-25 19:21:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 339 states have (on average 1.176991150442478) internal successors, (399), 344 states have internal predecessors, (399), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2021-11-25 19:21:51,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2021-11-25 19:21:51,050 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 62 [2021-11-25 19:21:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:51,050 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2021-11-25 19:21:51,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:21:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2021-11-25 19:21:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-25 19:21:51,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:51,056 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:51,105 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 19:21:51,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:51,274 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:51,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash -334329145, now seen corresponding path program 1 times [2021-11-25 19:21:51,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:51,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500558163] [2021-11-25 19:21:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:51,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:51,502 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1924318552] [2021-11-25 19:21:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:51,507 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:51,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:51,508 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:51,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:21:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:52,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 2283 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:21:52,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:21:52,904 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:21:52,904 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:21:52,905 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:52,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500558163] [2021-11-25 19:21:52,905 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:21:52,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924318552] [2021-11-25 19:21:52,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924318552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:52,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:52,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:21:52,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078134925] [2021-11-25 19:21:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:52,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:21:52,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:52,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:21:52,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:21:52,908 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:21:55,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:55,635 INFO L93 Difference]: Finished difference Result 820 states and 988 transitions. [2021-11-25 19:21:55,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:21:55,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2021-11-25 19:21:55,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:55,640 INFO L225 Difference]: With dead ends: 820 [2021-11-25 19:21:55,641 INFO L226 Difference]: Without dead ends: 484 [2021-11-25 19:21:55,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:21:55,643 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:55,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 530 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-25 19:21:55,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2021-11-25 19:21:55,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 429. [2021-11-25 19:21:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 403 states have (on average 1.1687344913151365) internal successors, (471), 408 states have internal predecessors, (471), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-25 19:21:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 514 transitions. [2021-11-25 19:21:55,700 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 514 transitions. Word has length 83 [2021-11-25 19:21:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:55,701 INFO L470 AbstractCegarLoop]: Abstraction has 429 states and 514 transitions. [2021-11-25 19:21:55,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 2 states have internal predecessors, (75), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:21:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 514 transitions. [2021-11-25 19:21:55,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-25 19:21:55,712 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:55,713 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:55,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:21:55,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:55,933 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1903584894, now seen corresponding path program 1 times [2021-11-25 19:21:55,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:55,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75175234] [2021-11-25 19:21:55,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:55,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:56,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:56,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1681103335] [2021-11-25 19:21:56,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:56,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:56,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:56,070 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:56,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:21:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:21:57,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1420 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:21:57,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:21:57,345 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-25 19:21:57,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:21:57,346 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:21:57,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75175234] [2021-11-25 19:21:57,346 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:21:57,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681103335] [2021-11-25 19:21:57,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1681103335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:21:57,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:21:57,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:21:57,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341315565] [2021-11-25 19:21:57,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:21:57,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:21:57,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:21:57,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:21:57,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:21:57,351 INFO L87 Difference]: Start difference. First operand 429 states and 514 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:21:59,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:21:59,460 INFO L93 Difference]: Finished difference Result 719 states and 867 transitions. [2021-11-25 19:21:59,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:21:59,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2021-11-25 19:21:59,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:21:59,465 INFO L225 Difference]: With dead ends: 719 [2021-11-25 19:21:59,465 INFO L226 Difference]: Without dead ends: 351 [2021-11-25 19:21:59,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:21:59,467 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 438 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:21:59,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 334 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 19:21:59,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-25 19:21:59,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-25 19:21:59,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 330 states have (on average 1.1666666666666667) internal successors, (385), 335 states have internal predecessors, (385), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:21:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 418 transitions. [2021-11-25 19:21:59,491 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 418 transitions. Word has length 96 [2021-11-25 19:21:59,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:21:59,492 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 418 transitions. [2021-11-25 19:21:59,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:21:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 418 transitions. [2021-11-25 19:21:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-25 19:21:59,495 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:21:59,496 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:21:59,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 19:21:59,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 19:21:59,714 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:21:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:21:59,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1222209427, now seen corresponding path program 1 times [2021-11-25 19:21:59,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:21:59,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114382583] [2021-11-25 19:21:59,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:59,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:21:59,846 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:21:59,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060046233] [2021-11-25 19:21:59,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:21:59,847 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:21:59,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:21:59,848 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:21:59,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:22:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:22:06,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:22:06,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:22:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-25 19:22:06,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:22:06,814 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:22:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114382583] [2021-11-25 19:22:06,814 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:22:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060046233] [2021-11-25 19:22:06,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060046233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:22:06,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:22:06,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:22:06,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698132300] [2021-11-25 19:22:06,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:22:06,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:22:06,816 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:22:06,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:22:06,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:22:06,816 INFO L87 Difference]: Start difference. First operand 351 states and 418 transitions. Second operand has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 19:22:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:22:10,348 INFO L93 Difference]: Finished difference Result 684 states and 823 transitions. [2021-11-25 19:22:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:22:10,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 103 [2021-11-25 19:22:10,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:22:10,352 INFO L225 Difference]: With dead ends: 684 [2021-11-25 19:22:10,352 INFO L226 Difference]: Without dead ends: 353 [2021-11-25 19:22:10,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:22:10,354 INFO L933 BasicCegarLoop]: 271 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:22:10,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 806 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-25 19:22:10,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-25 19:22:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2021-11-25 19:22:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 331 states have (on average 1.1691842900302114) internal successors, (387), 337 states have internal predecessors, (387), 17 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (19), 13 states have call predecessors, (19), 16 states have call successors, (19) [2021-11-25 19:22:10,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2021-11-25 19:22:10,379 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 103 [2021-11-25 19:22:10,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:22:10,379 INFO L470 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2021-11-25 19:22:10,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 29.666666666666668) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-25 19:22:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2021-11-25 19:22:10,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-25 19:22:10,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:22:10,382 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:22:10,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:22:10,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:22:10,590 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:22:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:22:10,590 INFO L85 PathProgramCache]: Analyzing trace with hash 221127857, now seen corresponding path program 1 times [2021-11-25 19:22:10,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:22:10,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153176461] [2021-11-25 19:22:10,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:22:10,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:22:10,686 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:22:10,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [118860437] [2021-11-25 19:22:10,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:22:10,687 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:22:10,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:22:10,696 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:22:10,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b5df98b-4b4e-4184-84ec-60cc9f6d1003/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:35:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:21,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 1505 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-25 19:35:21,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:35:22,000 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-25 19:35:22,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:35:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:35:22,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:22,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153176461] [2021-11-25 19:35:22,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:35:22,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118860437] [2021-11-25 19:35:22,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118860437] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:35:22,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [697889346] [2021-11-25 19:35:22,272 INFO L159 IcfgInterpreter]: Started Sifa with 93 locations of interest [2021-11-25 19:35:22,273 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:35:22,276 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:35:22,281 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:35:22,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:35:22,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,550 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-25 19:35:22,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-25 19:35:22,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-25 19:35:22,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 1 [2021-11-25 19:35:22,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:35:22,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:22,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,702 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 19:35:22,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:22,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 52 treesize of output 49 [2021-11-25 19:35:22,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:22,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:22,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2021-11-25 19:35:23,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-25 19:35:23,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 19:35:23,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 19:35:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-25 19:35:23,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2021-11-25 19:35:23,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 55 [2021-11-25 19:35:23,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:35:23,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:35:23,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 19:35:23,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 19:35:23,673 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-25 19:35:23,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 60 [2021-11-25 19:35:23,702 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:35:23,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2021-11-25 19:35:23,734 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-25 19:35:23,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 50 [2021-11-25 19:35:23,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:35:23,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:35:23,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:35:23,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 19:35:23,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-25 19:35:23,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:23,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 19:35:24,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-25 19:35:24,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 78 treesize of output 30 [2021-11-25 19:35:24,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:24,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 19:35:30,322 WARN L227 SmtUtils]: Spent 6.13s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:35:30,322 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 19:35:30,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 19:35:30,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:37,662 WARN L227 SmtUtils]: Spent 7.22s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:35:37,663 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 19:35:37,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 19:35:37,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:38,179 INFO L244 Elim1Store]: Index analysis took 295 ms [2021-11-25 19:35:48,107 WARN L227 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 245 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:35:48,108 INFO L354 Elim1Store]: treesize reduction 2494, result has 31.7 percent of original size [2021-11-25 19:35:48,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1542 treesize of output 1373 [2021-11-25 19:35:48,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,700 INFO L244 Elim1Store]: Index analysis took 156 ms [2021-11-25 19:35:48,711 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-25 19:35:48,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 16 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 46 [2021-11-25 19:35:48,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:48,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,134 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-11-25 19:35:49,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 57 [2021-11-25 19:35:49,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:49,700 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 19:35:49,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 19:35:49,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:35:50,104 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:35:50,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 19:35:50,450 INFO L244 Elim1Store]: Index analysis took 203 ms