./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/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_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:36:55,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:36:55,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:36:55,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:36:55,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:36:55,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:36:55,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:36:55,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:36:55,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:36:55,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:36:55,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:36:55,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:36:55,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:36:55,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:36:55,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:36:55,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:36:55,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:36:55,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:36:55,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:36:55,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:36:55,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:36:55,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:36:55,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:36:55,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:36:55,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:36:55,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:36:55,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:36:55,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:36:55,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:36:55,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:36:55,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:36:55,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:36:55,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:36:55,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:36:55,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:36:55,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:36:55,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:36:55,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:36:55,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:36:55,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:36:55,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:36:55,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 20:36:55,254 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:36:55,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:36:55,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:36:55,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:36:55,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:36:55,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:36:55,262 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:36:55,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:36:55,263 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:36:55,263 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:36:55,264 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:36:55,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:36:55,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:36:55,265 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:36:55,265 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:36:55,266 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:36:55,266 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:36:55,266 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:36:55,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:36:55,269 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:36:55,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:36:55,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:36:55,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:36:55,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:36:55,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:36:55,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:36:55,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:36:55,272 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 20:36:55,272 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:36:55,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:36:55,273 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:36:55,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:36:55,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:36:55,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:36:55,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:55,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:36:55,276 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:36:55,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:36:55,276 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:36:55,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:36:55,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:36:55,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:36:55,277 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:36:55,277 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_b3da02ed-828b-48b3-b8e0-296608df9ea5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 765142a1ef820c0c2cf2fa98a3978a1412f5a1196c629c20848264001100dcc9 [2021-11-25 20:36:55,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:36:55,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:36:55,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:36:55,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:36:55,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:36:55,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2021-11-25 20:36:55,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/data/640b5ec0f/5a3b006bb16e4a078c9f7f436483565e/FLAGa98a2140b [2021-11-25 20:36:56,240 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:36:56,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i [2021-11-25 20:36:56,265 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/data/640b5ec0f/5a3b006bb16e4a078c9f7f436483565e/FLAGa98a2140b [2021-11-25 20:36:56,599 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/data/640b5ec0f/5a3b006bb16e4a078c9f7f436483565e [2021-11-25 20:36:56,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:36:56,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:36:56,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:56,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:36:56,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:36:56,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:56" (1/1) ... [2021-11-25 20:36:56,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f06d3c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:56, skipping insertion in model container [2021-11-25 20:36:56,614 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:56" (1/1) ... [2021-11-25 20:36:56,620 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:36:56,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:36:57,155 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_b3da02ed-828b-48b3-b8e0-296608df9ea5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2021-11-25 20:36:57,347 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:57,355 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:36:57,385 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_b3da02ed-828b-48b3-b8e0-296608df9ea5/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-1.i[33021,33034] [2021-11-25 20:36:57,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:57,500 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:36:57,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57 WrapperNode [2021-11-25 20:36:57,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:57,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:57,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:36:57,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:36:57,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,640 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-25 20:36:57,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:57,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:36:57,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:36:57,642 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:36:57,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:36:57,783 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:36:57,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:36:57,799 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:36:57,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (1/1) ... [2021-11-25 20:36:57,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:57,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:57,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:36:57,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:36:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:36:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:36:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:36:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:36:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 20:36:57,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 20:36:57,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:36:57,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:36:57,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:36:58,180 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:36:58,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:36:59,376 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:36:59,766 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:36:59,766 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-25 20:36:59,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:59 BoogieIcfgContainer [2021-11-25 20:36:59,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:36:59,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:36:59,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:36:59,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:36:59,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:36:56" (1/3) ... [2021-11-25 20:36:59,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b992887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:59, skipping insertion in model container [2021-11-25 20:36:59,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:57" (2/3) ... [2021-11-25 20:36:59,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b992887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:59, skipping insertion in model container [2021-11-25 20:36:59,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:59" (3/3) ... [2021-11-25 20:36:59,785 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-1.i [2021-11-25 20:36:59,790 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:36:59,791 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-25 20:36:59,850 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:36:59,862 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 20:36:59,863 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-25 20:36:59,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 20:36:59,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 20:36:59,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:59,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 20:36:59,892 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:36:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:59,897 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-25 20:36:59,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:59,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032907736] [2021-11-25 20:36:59,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:59,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:00,015 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:00,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [52230999] [2021-11-25 20:37:00,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:00,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:00,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:00,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:00,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:37:00,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:00,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:37:00,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:00,262 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 20:37:00,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:00,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:00,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032907736] [2021-11-25 20:37:00,263 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:00,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52230999] [2021-11-25 20:37:00,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52230999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:00,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:00,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:37:00,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126223373] [2021-11-25 20:37:00,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:00,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:37:00,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:00,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:37:00,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:00,310 INFO L87 Difference]: Start difference. First operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:01,684 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-25 20:37:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:01,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-25 20:37:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:01,706 INFO L225 Difference]: With dead ends: 368 [2021-11-25 20:37:01,706 INFO L226 Difference]: Without dead ends: 233 [2021-11-25 20:37:01,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 20:37:01,713 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:01,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:37:01,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-25 20:37:01,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-25 20:37:01,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 20:37:01,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-25 20:37:01,767 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-25 20:37:01,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:01,768 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-25 20:37:01,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-25 20:37:01,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 20:37:01,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:01,771 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, 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 20:37:01,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:01,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:01,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-25 20:37:01,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:01,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384860024] [2021-11-25 20:37:01,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:01,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:02,283 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:02,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1094677677] [2021-11-25 20:37:02,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:02,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:02,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:02,293 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:02,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:37:03,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:03,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 3016 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:37:03,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:03,547 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 20:37:03,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:03,553 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:03,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384860024] [2021-11-25 20:37:03,553 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:03,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094677677] [2021-11-25 20:37:03,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094677677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:03,554 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:03,555 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:37:03,555 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258291495] [2021-11-25 20:37:03,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:03,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:37:03,556 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:03,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:37:03,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:37:03,557 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:06,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:07,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:07,508 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-25 20:37:07,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:37:07,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-25 20:37:07,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:07,520 INFO L225 Difference]: With dead ends: 233 [2021-11-25 20:37:07,520 INFO L226 Difference]: Without dead ends: 232 [2021-11-25 20:37:07,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 20:37:07,522 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:07,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-25 20:37:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-25 20:37:07,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-25 20:37:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 215 states have internal predecessors, (238), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 20:37:07,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-25 20:37:07,560 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-25 20:37:07,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:07,560 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-25 20:37:07,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:07,561 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-25 20:37:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 20:37:07,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:07,563 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, 1, 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 20:37:07,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:07,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 20:37:07,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:07,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:07,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-25 20:37:07,771 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:07,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685613405] [2021-11-25 20:37:07,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:07,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:07,993 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:07,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433833006] [2021-11-25 20:37:07,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:07,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:07,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:08,003 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:08,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:37:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:09,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:37:09,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:09,339 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 20:37:09,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:09,339 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:09,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685613405] [2021-11-25 20:37:09,341 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:09,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433833006] [2021-11-25 20:37:09,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433833006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:09,342 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:09,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:37:09,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061016654] [2021-11-25 20:37:09,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:09,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:37:09,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:09,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:37:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:37:09,347 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:10,595 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-25 20:37:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:37:10,601 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-25 20:37:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:10,603 INFO L225 Difference]: With dead ends: 230 [2021-11-25 20:37:10,603 INFO L226 Difference]: Without dead ends: 229 [2021-11-25 20:37:10,604 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 20:37:10,605 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:10,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-25 20:37:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-25 20:37:10,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-25 20:37:10,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 214 states have internal predecessors, (237), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 20:37:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-25 20:37:10,631 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-25 20:37:10,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:10,631 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-25 20:37:10,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-25 20:37:10,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 20:37:10,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:10,634 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, 1, 1] [2021-11-25 20:37:10,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:10,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:10,855 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:10,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:10,856 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-25 20:37:10,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:10,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065232113] [2021-11-25 20:37:10,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:10,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:11,041 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:11,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151789907] [2021-11-25 20:37:11,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:11,041 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:11,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:11,043 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:11,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:37:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:37:12,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:12,642 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 20:37:12,643 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:12,643 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:12,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065232113] [2021-11-25 20:37:12,643 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:12,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151789907] [2021-11-25 20:37:12,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151789907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:12,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:12,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:37:12,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365212299] [2021-11-25 20:37:12,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:12,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:37:12,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:12,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:37:12,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:12,646 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:15,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:15,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:15,893 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-25 20:37:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:15,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-25 20:37:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:15,915 INFO L225 Difference]: With dead ends: 384 [2021-11-25 20:37:15,915 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 20:37:15,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 20:37:15,918 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:15,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2021-11-25 20:37:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 20:37:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 20:37:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 199 states have (on average 1.1758793969849246) internal successors, (234), 212 states have internal predecessors, (234), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 20:37:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-25 20:37:15,939 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-25 20:37:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:15,940 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-25 20:37:15,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:37:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-25 20:37:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:37:15,943 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:15,943 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] [2021-11-25 20:37:15,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:16,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:16,159 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:16,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-25 20:37:16,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:16,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287731209] [2021-11-25 20:37:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:16,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:16,285 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:16,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [332842354] [2021-11-25 20:37:16,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:16,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:16,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:16,287 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:16,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:37:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:17,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:37:17,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:17,767 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 20:37:17,767 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:17,767 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:17,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287731209] [2021-11-25 20:37:17,768 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:17,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332842354] [2021-11-25 20:37:17,768 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332842354] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:17,768 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:17,768 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:37:17,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365931085] [2021-11-25 20:37:17,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:17,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:37:17,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:17,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:37:17,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:17,770 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:37:19,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:19,048 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-25 20:37:19,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:19,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 20:37:19,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:19,055 INFO L225 Difference]: With dead ends: 426 [2021-11-25 20:37:19,055 INFO L226 Difference]: Without dead ends: 225 [2021-11-25 20:37:19,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 20:37:19,058 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:19,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:37:19,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-25 20:37:19,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-25 20:37:19,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 20:37:19,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-25 20:37:19,073 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-25 20:37:19,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:19,073 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-25 20:37:19,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 20:37:19,074 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-25 20:37:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 20:37:19,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:19,077 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] [2021-11-25 20:37:19,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:19,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:19,292 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:19,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:19,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-25 20:37:19,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:19,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640527785] [2021-11-25 20:37:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:19,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:19,381 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:19,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1348559448] [2021-11-25 20:37:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:19,387 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:19,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:19,389 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:19,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:37:21,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:21,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:37:21,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:22,062 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 20:37:22,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:22,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:22,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640527785] [2021-11-25 20:37:22,063 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:22,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348559448] [2021-11-25 20:37:22,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348559448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:22,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:22,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 20:37:22,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413161705] [2021-11-25 20:37:22,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:22,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:37:22,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:22,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:37:22,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:37:22,066 INFO L87 Difference]: Start difference. First operand 225 states and 275 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 20:37:24,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:24,381 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-25 20:37:24,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:37:24,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-25 20:37:24,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:24,391 INFO L225 Difference]: With dead ends: 432 [2021-11-25 20:37:24,391 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 20:37:24,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 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 20:37:24,392 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:24,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 20:37:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 20:37:24,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 20:37:24,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 198 states have (on average 1.1767676767676767) internal successors, (233), 212 states have internal predecessors, (233), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-25 20:37:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-25 20:37:24,409 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-25 20:37:24,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:24,409 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-25 20:37:24,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 20:37:24,410 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-25 20:37:24,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 20:37:24,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:24,413 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] [2021-11-25 20:37:24,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-25 20:37:24,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 20:37:24,633 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 20:37:24,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:24,633 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-25 20:37:24,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:24,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272646224] [2021-11-25 20:37:24,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:24,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:24,701 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:24,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425730194] [2021-11-25 20:37:24,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:24,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:24,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:24,724 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:24,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3da02ed-828b-48b3-b8e0-296608df9ea5/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:37:27,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:27,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:37:27,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:27,183 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 20:37:27,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:27,398 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:37:27,398 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272646224] [2021-11-25 20:37:27,398 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425730194] [2021-11-25 20:37:27,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425730194] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:27,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1785251071] [2021-11-25 20:37:27,419 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-25 20:37:27,420 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:27,424 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:27,429 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:27,429 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:27,786 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 20:37:27,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-25 20:37:27,829 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:27,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 20:37:27,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 20:37:27,855 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 20:37:27,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 20:37:27,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:27,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:27,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:27,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 20:37:28,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,284 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 20:37:28,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-25 20:37:28,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-25 20:37:28,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,376 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 20:37:28,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,410 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 20:37:28,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,429 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 20:37:28,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-25 20:37:28,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,537 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 20:37:28,614 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 20:37:28,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2021-11-25 20:37:28,629 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 28 treesize of output 36 [2021-11-25 20:37:28,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,672 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 70 treesize of output 69 [2021-11-25 20:37:28,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,702 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 20:37:28,802 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 20:37:28,806 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 20:37:28,811 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 20:37:28,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 20:37:28,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 20:37:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 20:37:28,880 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 20:37:28,885 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 20:37:28,890 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 20:37:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,966 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 20:37:28,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-25 20:37:29,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,011 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 108 treesize of output 42 [2021-11-25 20:37:29,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,142 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 20:37:29,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,160 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 108 treesize of output 42 [2021-11-25 20:37:29,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-25 20:37:34,508 WARN L227 SmtUtils]: Spent 5.15s 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 20:37:34,509 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:37:34,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 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 20:37:34,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:45,082 WARN L227 SmtUtils]: Spent 10.44s 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 20:37:45,082 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:37:45,083 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 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 20:37:45,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:45,720 INFO L244 Elim1Store]: Index analysis took 394 ms [2021-11-25 20:37:58,265 WARN L227 SmtUtils]: Spent 12.22s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 20:37:58,267 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 20:37:58,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 20:37:58,874 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-11-25 20:37:59,942 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 20:37:59,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 20:38:00,168 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 27 treesize of output 38 [2021-11-25 20:38:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,870 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 20:38:00,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 20:38:01,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,201 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:01,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 20:38:01,288 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:01,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:01,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 20:38:01,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:01,780 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 20:38:01,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 20:38:01,843 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,153 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 20:38:02,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 24 [2021-11-25 20:38:02,198 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 20:38:02,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:02,332 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:02,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:02,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:02,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 57 [2021-11-25 20:38:03,457 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,566 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-25 20:38:03,647 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:03,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3554 treesize of output 3334 [2021-11-25 20:38:03,771 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:03,840 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:03,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:03,941 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:03,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,039 INFO L244 Elim1Store]: Index analysis took 108 ms [2021-11-25 20:38:04,188 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:04,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3244 treesize of output 3012 [2021-11-25 20:38:04,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:04,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 20:38:04,447 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:04,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:04,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:04,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,753 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 20:38:04,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 20:38:04,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:04,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:04,993 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:05,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:05,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:05,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:05,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:05,111 INFO L244 Elim1Store]: Index analysis took 147 ms [2021-11-25 20:38:05,127 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 20:38:05,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 20:38:05,776 INFO L244 Elim1Store]: Index analysis took 162 ms [2021-11-25 20:38:05,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:07,507 INFO L354 Elim1Store]: treesize reduction 389, result has 79.0 percent of original size [2021-11-25 20:38:07,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3586 treesize of output 4585 [2021-11-25 20:38:08,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:08,856 INFO L354 Elim1Store]: treesize reduction 1803, result has 2.5 percent of original size [2021-11-25 20:38:08,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3575 treesize of output 3165 [2021-11-25 20:38:09,048 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:09,096 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:09,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:09,306 INFO L244 Elim1Store]: Index analysis took 150 ms [2021-11-25 20:38:11,337 INFO L354 Elim1Store]: treesize reduction 413, result has 77.9 percent of original size [2021-11-25 20:38:11,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4256 [2021-11-25 20:38:14,131 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:14,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:14,223 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 20:38:14,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 3188 treesize of output 2794 [2021-11-25 20:38:14,340 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:14,403 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:15,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:15,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:15,598 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 20:38:15,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3591 treesize of output 1 [2021-11-25 20:38:17,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:17,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:17,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:17,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:17,882 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-25 20:38:18,536 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 20:38:18,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3554 treesize of output 3840 [2021-11-25 20:38:18,710 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,777 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,896 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:18,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,545 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 20:38:19,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 20:38:19,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:19,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 20:38:19,859 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:19,905 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:20,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,238 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 20:38:20,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 20:38:20,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:20,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,552 INFO L244 Elim1Store]: Index analysis took 114 ms [2021-11-25 20:38:20,640 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 20:38:20,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 20:38:22,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,993 INFO L244 Elim1Store]: Index analysis took 167 ms [2021-11-25 20:38:27,399 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 20:38:27,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 118197 treesize of output 117947 [2021-11-25 20:42:43,543 WARN L227 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:43:07,399 WARN L227 SmtUtils]: Spent 18.70s on a formula simplification. DAG size of input: 1853 DAG size of output: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:46:03,268 WARN L227 SmtUtils]: Spent 18.51s on a formula simplification. DAG size of input: 1677 DAG size of output: 1677 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)