./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:32:41,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:32:41,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:32:41,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:32:41,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:32:41,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:32:41,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:32:41,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:32:41,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:32:41,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:32:41,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:32:41,165 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:32:41,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:32:41,169 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:32:41,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:32:41,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:32:41,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:32:41,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:32:41,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:32:41,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:32:41,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:32:41,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:32:41,201 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:32:41,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:32:41,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:32:41,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:32:41,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:32:41,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:32:41,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:32:41,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:32:41,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:32:41,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:32:41,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:32:41,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:32:41,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:32:41,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:32:41,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:32:41,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:32:41,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:32:41,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:32:41,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:32:41,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-20 23:32:41,278 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:32:41,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:32:41,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:32:41,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:32:41,280 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:32:41,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:32:41,285 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:32:41,285 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:32:41,285 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:32:41,285 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:32:41,286 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:32:41,287 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:32:41,287 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:32:41,287 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:32:41,287 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:32:41,287 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:32:41,288 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:32:41,288 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:32:41,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:32:41,289 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:32:41,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:32:41,290 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:32:41,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:32:41,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:32:41,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:32:41,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:32:41,292 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:32:41,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:32:41,292 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:32:41,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:32:41,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:32:41,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:32:41,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:41,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:32:41,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:32:41,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:32:41,294 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:32:41,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:32:41,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:32:41,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:32:41,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:32:41,295 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_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f552e336cb6eb3ea16ba25a84411e1d0c8dcfaa2b088c21df87ffefed1a84a7 [2021-11-20 23:32:41,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:32:41,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:32:41,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:32:41,724 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:32:41,729 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:32:41,730 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-20 23:32:41,820 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/data/4dc2742fd/9ac72ed383f04599934dc667142acfa5/FLAG18b9ba73e [2021-11-20 23:32:42,586 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:32:42,588 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i [2021-11-20 23:32:42,618 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/data/4dc2742fd/9ac72ed383f04599934dc667142acfa5/FLAG18b9ba73e [2021-11-20 23:32:42,795 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/data/4dc2742fd/9ac72ed383f04599934dc667142acfa5 [2021-11-20 23:32:42,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:32:42,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:32:42,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:42,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:32:42,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:32:42,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:42" (1/1) ... [2021-11-20 23:32:42,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ed4823a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:42, skipping insertion in model container [2021-11-20 23:32:42,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:32:42" (1/1) ... [2021-11-20 23:32:42,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:32:42,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:32:43,427 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_075cdbe7-7b66-4836-8ee6-4b183daa8152/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-20 23:32:43,530 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:43,539 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:32:43,581 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_075cdbe7-7b66-4836-8ee6-4b183daa8152/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-2.i[33021,33034] [2021-11-20 23:32:43,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:32:43,675 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:32:43,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43 WrapperNode [2021-11-20 23:32:43,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:32:43,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:43,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:32:43,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:32:43,685 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,715 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,792 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 776 [2021-11-20 23:32:43,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:32:43,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:32:43,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:32:43,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:32:43,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:32:43,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:32:43,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:32:43,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:32:43,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (1/1) ... [2021-11-20 23:32:43,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:32:43,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:44,002 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:32:44,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:32:44,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:32:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:32:44,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:32:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:32:44,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:32:44,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:32:44,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:32:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:32:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:32:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:32:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:32:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:32:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:32:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:32:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:32:44,352 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:32:44,354 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:32:45,265 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:32:45,630 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:32:45,631 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-20 23:32:45,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:45 BoogieIcfgContainer [2021-11-20 23:32:45,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:32:45,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:32:45,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:32:45,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:32:45,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:32:42" (1/3) ... [2021-11-20 23:32:45,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4925451e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:45, skipping insertion in model container [2021-11-20 23:32:45,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:32:43" (2/3) ... [2021-11-20 23:32:45,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4925451e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:32:45, skipping insertion in model container [2021-11-20 23:32:45,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:32:45" (3/3) ... [2021-11-20 23:32:45,644 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-2.i [2021-11-20 23:32:45,650 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:32:45,650 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 23:32:45,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:32:45,711 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 [2021-11-20 23:32:45,712 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 23:32:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:32:45,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-20 23:32:45,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:45,745 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:45,746 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:32:45,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:45,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1739953547, now seen corresponding path program 1 times [2021-11-20 23:32:45,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:45,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210674094] [2021-11-20 23:32:45,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:45,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:45,949 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:45,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210674094] [2021-11-20 23:32:45,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210674094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:45,950 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:32:45,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:32:45,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860464608] [2021-11-20 23:32:45,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:45,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:32:45,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:45,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:32:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:32:45,996 INFO L87 Difference]: Start difference. First operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:47,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-20 23:32:47,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:47,970 INFO L93 Difference]: Finished difference Result 237 states and 426 transitions. [2021-11-20 23:32:47,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:32:47,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-20 23:32:47,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:48,001 INFO L225 Difference]: With dead ends: 237 [2021-11-20 23:32:48,001 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 23:32:48,005 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 [2021-11-20 23:32:48,010 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:48,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-20 23:32:48,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 23:32:48,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-20 23:32:48,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:32:48,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-20 23:32:48,070 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-20 23:32:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:48,070 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-20 23:32:48,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-20 23:32:48,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 23:32:48,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:48,075 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] [2021-11-20 23:32:48,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 23:32:48,075 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:32:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash -976039302, now seen corresponding path program 1 times [2021-11-20 23:32:48,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:48,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304384737] [2021-11-20 23:32:48,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:48,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:48,099 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:48,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [854026873] [2021-11-20 23:32:48,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:48,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:48,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:48,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:48,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:32:48,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:48,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:32:48,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:48,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:32:48,721 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:32:48,722 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:48,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304384737] [2021-11-20 23:32:48,728 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:48,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854026873] [2021-11-20 23:32:48,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854026873] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:32:48,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1995742042] [2021-11-20 23:32:48,771 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-20 23:32:48,774 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:32:48,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:32:48,789 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:32:48,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:32:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:49,018 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:32:49,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:49,041 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:32:49,043 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 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-20 23:32:49,142 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:32:49,143 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 [2021-11-20 23:32:49,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:49,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:32:49,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:49,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:32:49,303 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:32:49,304 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 [2021-11-20 23:32:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,686 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 29 treesize of output 19 [2021-11-20 23:32:50,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:32:50,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:32:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:50,861 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 29 treesize of output 19 [2021-11-20 23:32:51,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,924 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 29 treesize of output 19 [2021-11-20 23:32:51,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,968 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 29 treesize of output 19 [2021-11-20 23:32:51,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:51,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:32:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:52,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:32:52,217 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:32:52,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1995742042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:32:52,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:32:52,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-20 23:32:52,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436326982] [2021-11-20 23:32:52,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:32:52,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 23:32:52,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:32:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 23:32:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:32:52,842 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:55,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:32:55,138 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-20 23:32:55,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 23:32:55,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-20 23:32:55,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:32:55,147 INFO L225 Difference]: With dead ends: 173 [2021-11-20 23:32:55,147 INFO L226 Difference]: Without dead ends: 94 [2021-11-20 23:32:55,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-20 23:32:55,150 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 23:32:55,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 333 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 23:32:55,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-20 23:32:55,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-20 23:32:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-20 23:32:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-20 23:32:55,169 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-20 23:32:55,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:32:55,170 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-20 23:32:55,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 23:32:55,171 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-20 23:32:55,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-20 23:32:55,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:32:55,173 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:32:55,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 23:32:55,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:55,377 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:32:55,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:32:55,378 INFO L85 PathProgramCache]: Analyzing trace with hash 720340601, now seen corresponding path program 1 times [2021-11-20 23:32:55,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:32:55,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630429485] [2021-11-20 23:32:55,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:55,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:32:55,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:32:55,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264544404] [2021-11-20 23:32:55,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:32:55,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:32:55,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:32:55,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:32:55,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:32:55,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:32:55,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:32:55,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:32:55,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:32:55,792 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:32:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 23:32:55,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:32:55,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630429485] [2021-11-20 23:32:55,960 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:32:55,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264544404] [2021-11-20 23:32:55,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264544404] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:32:55,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2095140703] [2021-11-20 23:32:55,965 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:32:55,965 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:32:55,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:32:55,995 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:32:55,995 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:32:56,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:56,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:32:56,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:56,132 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:32:56,132 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 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-20 23:32:56,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:56,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:32:56,203 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:32:56,204 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 [2021-11-20 23:32:56,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:56,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:32:56,300 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:32:56,300 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 [2021-11-20 23:32:57,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,508 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 29 treesize of output 19 [2021-11-20 23:32:57,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,552 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 29 treesize of output 19 [2021-11-20 23:32:57,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:32:57,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:32:57,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 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 [2021-11-20 23:32:57,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:32:57,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:32:57,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,006 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:32:58,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:32:58,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:32:58,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,172 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:32:58,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 125 [2021-11-20 23:32:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,250 INFO L354 Elim1Store]: treesize reduction 176, result has 10.7 percent of original size [2021-11-20 23:32:58,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 119 [2021-11-20 23:32:58,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:32:58,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:33:00,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,678 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 29 treesize of output 19 [2021-11-20 23:33:00,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:33:00,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:33:00,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,808 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 29 treesize of output 19 [2021-11-20 23:33:00,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 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 [2021-11-20 23:33:00,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:33:00,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:00,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:33:01,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,114 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:33:01,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:33:01,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:33:01,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,301 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:33:01,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:33:01,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,371 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:33:01,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-20 23:33:01,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:01,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:33:01,738 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-20 23:33:02,025 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-20 23:33:03,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2095140703] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:33:03,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-20 23:33:03,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-20 23:33:03,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162292678] [2021-11-20 23:33:03,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:33:03,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 23:33:03,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:33:03,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 23:33:03,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:33:03,191 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:05,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:33:05,463 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-20 23:33:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 23:33:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-20 23:33:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:33:05,474 INFO L225 Difference]: With dead ends: 175 [2021-11-20 23:33:05,474 INFO L226 Difference]: Without dead ends: 96 [2021-11-20 23:33:05,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-20 23:33:05,477 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 12 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 23:33:05,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 444 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 110 Unchecked, 2.2s Time] [2021-11-20 23:33:05,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-20 23:33:05,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-20 23:33:05,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 23:33:05,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-20 23:33:05,497 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-20 23:33:05,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:33:05,497 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-20 23:33:05,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:33:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-20 23:33:05,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-20 23:33:05,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:33:05,500 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 23:33:05,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:33:05,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:05,704 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 23:33:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:33:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash 659673767, now seen corresponding path program 1 times [2021-11-20 23:33:05,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:33:05,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553512046] [2021-11-20 23:33:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:05,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:33:05,721 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:33:05,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1946203490] [2021-11-20 23:33:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:33:05,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:33:05,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:33:05,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:33:05,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_075cdbe7-7b66-4836-8ee6-4b183daa8152/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:33:05,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:33:05,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 23:33:05,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:33:06,043 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:33:06,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:33:06,180 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-20 23:33:06,181 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:33:06,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553512046] [2021-11-20 23:33:06,181 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:33:06,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946203490] [2021-11-20 23:33:06,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946203490] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:33:06,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1181702499] [2021-11-20 23:33:06,186 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-20 23:33:06,186 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:33:06,187 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:33:06,187 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:33:06,187 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:33:06,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-20 23:33:06,312 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-20 23:33:06,315 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 [2021-11-20 23:33:06,379 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:33:06,379 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 [2021-11-20 23:33:06,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,412 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 23:33:06,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-20 23:33:06,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:06,451 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 22 treesize of output 7 [2021-11-20 23:33:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,519 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 29 treesize of output 19 [2021-11-20 23:33:07,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-20 23:33:07,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-20 23:33:07,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,652 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 29 treesize of output 19 [2021-11-20 23:33:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:33:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 [2021-11-20 23:33:07,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 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 [2021-11-20 23:33:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:07,996 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:33:07,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-20 23:33:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-20 23:33:08,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,172 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-20 23:33:08,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-20 23:33:08,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,228 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-20 23:33:08,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-20 23:33:08,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:08,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:33:08,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:33:08,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 23:33:08,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 23:33:09,026 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:33:09,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-20 23:33:09,059 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:33:09,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-20 23:33:09,086 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:33:09,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-20 23:33:09,210 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 [2021-11-20 23:33:09,220 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 [2021-11-20 23:33:09,231 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 [2021-11-20 23:33:09,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 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 [2021-11-20 23:33:09,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:33:09,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-20 23:33:09,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-20 23:33:09,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 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 [2021-11-20 23:33:09,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:09,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 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 [2021-11-20 23:33:20,291 WARN L227 SmtUtils]: Spent 10.33s 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) [2021-11-20 23:33:20,292 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:33:20,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-20 23:33:20,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:30,392 WARN L227 SmtUtils]: Spent 10.05s 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) [2021-11-20 23:33:30,393 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:33:30,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-20 23:33:44,411 WARN L227 SmtUtils]: Spent 13.87s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:33:44,412 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-20 23:33:44,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-20 23:33:46,154 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-20 23:33:46,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-20 23:33:47,332 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-20 23:33:47,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-20 23:33:49,398 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-20 23:33:49,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:49,798 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-20 23:33:49,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 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 [2021-11-20 23:33:50,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:33:50,758 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:33:50,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 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