./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh --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 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:02:19,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:02:19,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:02:19,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:02:19,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:02:19,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:02:19,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:02:19,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:02:19,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:02:19,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:02:19,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:02:19,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:02:19,742 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:02:19,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:02:19,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:02:19,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:02:19,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:02:19,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:02:19,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:02:19,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:02:19,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:02:19,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:02:19,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:02:19,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:02:19,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:02:19,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:02:19,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:02:19,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:02:19,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:02:19,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:02:19,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:02:19,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:02:19,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:02:19,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:02:19,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:02:19,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:02:19,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:02:19,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:02:19,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:02:19,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:02:19,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:02:19,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:02:19,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:02:19,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:02:19,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:02:19,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:02:19,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:02:19,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:02:19,777 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:02:19,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:02:19,777 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:02:19,777 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:02:19,778 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:02:19,778 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:02:19,779 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:02:19,779 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:02:19,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:02:19,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:02:19,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:02:19,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:02:19,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:02:19,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:02:19,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:02:19,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:02:19,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08dbe1d8baf218c90d79c7aa96b8d857526ff0e474f0acb076b8cd9ca4d11ff2 [2022-12-14 15:02:19,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:02:19,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:02:19,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:02:19,993 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:02:19,994 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:02:19,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-12-14 15:02:22,625 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:02:22,875 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:02:22,876 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i [2022-12-14 15:02:22,889 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/data/4431bf44b/0d672057943540beabb6412f28e84985/FLAG41797438e [2022-12-14 15:02:22,903 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/data/4431bf44b/0d672057943540beabb6412f28e84985 [2022-12-14 15:02:22,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:02:22,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:02:22,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:02:22,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:02:22,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:02:22,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:02:22" (1/1) ... [2022-12-14 15:02:22,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4859d6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:22, skipping insertion in model container [2022-12-14 15:02:22,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:02:22" (1/1) ... [2022-12-14 15:02:22,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:02:22,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:02:23,214 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-12-14 15:02:23,309 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:02:23,316 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:02:23,337 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test4-1.i[33021,33034] [2022-12-14 15:02:23,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:02:23,399 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:02:23,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23 WrapperNode [2022-12-14 15:02:23,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:02:23,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:02:23,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:02:23,400 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:02:23,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,470 INFO L138 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1145 [2022-12-14 15:02:23,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:02:23,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:02:23,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:02:23,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:02:23,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,516 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:02:23,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:02:23,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:02:23,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:02:23,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (1/1) ... [2022-12-14 15:02:23,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:02:23,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:23,559 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:02:23,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:02:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:02:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:02:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:02:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:02:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:02:23,587 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:02:23,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:02:23,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:02:23,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:02:23,754 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:02:23,755 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:02:25,272 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:02:25,598 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:02:25,598 INFO L300 CfgBuilder]: Removed 60 assume(true) statements. [2022-12-14 15:02:25,601 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:02:25 BoogieIcfgContainer [2022-12-14 15:02:25,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:02:25,603 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:02:25,603 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:02:25,606 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:02:25,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:02:22" (1/3) ... [2022-12-14 15:02:25,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312e3ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:02:25, skipping insertion in model container [2022-12-14 15:02:25,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:02:23" (2/3) ... [2022-12-14 15:02:25,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@312e3ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:02:25, skipping insertion in model container [2022-12-14 15:02:25,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:02:25" (3/3) ... [2022-12-14 15:02:25,608 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test4-1.i [2022-12-14 15:02:25,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:02:25,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:02:25,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:02:25,664 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b9d9889, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:02:25,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:02:25,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:02:25,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 15:02:25,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:25,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:25,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:02:25,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:25,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1318725013, now seen corresponding path program 1 times [2022-12-14 15:02:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:25,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881568387] [2022-12-14 15:02:25,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:25,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:25,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881568387] [2022-12-14 15:02:25,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881568387] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:25,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:02:25,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:02:25,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156217302] [2022-12-14 15:02:25,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:25,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:02:25,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:25,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:02:25,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:02:25,849 INFO L87 Difference]: Start difference. First operand has 127 states, 107 states have (on average 1.794392523364486) internal successors, (192), 118 states have internal predecessors, (192), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 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) [2022-12-14 15:02:27,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:02:29,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:02:31,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:02:31,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:02:31,269 INFO L93 Difference]: Finished difference Result 347 states and 628 transitions. [2022-12-14 15:02:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:02:31,277 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 [2022-12-14 15:02:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:02:31,284 INFO L225 Difference]: With dead ends: 347 [2022-12-14 15:02:31,284 INFO L226 Difference]: Without dead ends: 220 [2022-12-14 15:02:31,286 INFO L412 NwaCegarLoop]: 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 [2022-12-14 15:02:31,288 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 97 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:02:31,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 310 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-12-14 15:02:31,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-12-14 15:02:31,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 127. [2022-12-14 15:02:31,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 108 states have (on average 1.212962962962963) internal successors, (131), 118 states have internal predecessors, (131), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:02:31,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 163 transitions. [2022-12-14 15:02:31,321 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 163 transitions. Word has length 8 [2022-12-14 15:02:31,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:02:31,322 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 163 transitions. [2022-12-14 15:02:31,322 INFO L496 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) [2022-12-14 15:02:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 163 transitions. [2022-12-14 15:02:31,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 15:02:31,323 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:02:31,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:02:31,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:02:31,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:02:31,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:02:31,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1742694732, now seen corresponding path program 1 times [2022-12-14 15:02:31,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:02:31,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990046782] [2022-12-14 15:02:31,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:31,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:02:31,513 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:02:31,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [872600894] [2022-12-14 15:02:31,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:02:31,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:02:31,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:02:31,515 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:02:31,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:02:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:02:32,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:02:32,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:02:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:32,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:02:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:02:32,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:02:32,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990046782] [2022-12-14 15:02:32,531 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:02:32,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872600894] [2022-12-14 15:02:32,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872600894] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:02:32,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [465142083] [2022-12-14 15:02:32,546 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-12-14 15:02:32,546 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:02:32,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:02:32,553 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:02:32,553 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:02:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:32,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:32,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:32,655 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:02:32,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:32,670 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:02:32,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 15:02:32,707 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:02:32,707 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:32,717 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:02:32,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:32,732 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:33,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:33,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:02:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:02:33,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:02:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,210 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:02:33,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 15:02:33,236 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-12-14 15:02:33,236 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:33,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:33,282 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:02:33,282 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:02:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:02:33,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:33,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:02:33,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:02:33,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896988 treesize of output 5376290 [2022-12-14 15:02:33,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:02:33,802 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:02:50,525 WARN L233 SmtUtils]: Spent 7.24s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:02:50,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [465142083] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:02:50,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 15:02:50,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2022-12-14 15:02:50,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925159298] [2022-12-14 15:02:50,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:02:50,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:02:50,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:02:50,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:02:50,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=69, Unknown=2, NotChecked=0, Total=132 [2022-12-14 15:02:50,530 INFO L87 Difference]: Start difference. First operand 127 states and 163 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-12-14 15:02:56,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:02:58,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:00,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:03:04,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:03:05,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:03:05,345 INFO L93 Difference]: Finished difference Result 265 states and 340 transitions. [2022-12-14 15:03:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 15:03:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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 52 [2022-12-14 15:03:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:03:05,346 INFO L225 Difference]: With dead ends: 265 [2022-12-14 15:03:05,346 INFO L226 Difference]: Without dead ends: 140 [2022-12-14 15:03:05,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 19.8s TimeCoverageRelationStatistics Valid=71, Invalid=83, Unknown=2, NotChecked=0, Total=156 [2022-12-14 15:03:05,348 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:03:05,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 466 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 215 Invalid, 3 Unknown, 0 Unchecked, 11.7s Time] [2022-12-14 15:03:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-12-14 15:03:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 137. [2022-12-14 15:03:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 118 states have (on average 1.194915254237288) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2022-12-14 15:03:05,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2022-12-14 15:03:05,368 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 52 [2022-12-14 15:03:05,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:03:05,368 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2022-12-14 15:03:05,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 7 states have internal predecessors, (51), 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) [2022-12-14 15:03:05,369 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2022-12-14 15:03:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 15:03:05,370 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:03:05,370 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:03:05,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:03:05,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:03:05,573 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:03:05,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:03:05,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1270953821, now seen corresponding path program 1 times [2022-12-14 15:03:05,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:03:05,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791151255] [2022-12-14 15:03:05,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:05,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:03:05,727 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:03:05,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2015312245] [2022-12-14 15:03:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:03:05,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:03:05,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:03:05,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:03:05,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:03:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:03:06,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:03:06,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:03:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:03:06,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:03:06,558 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:03:06,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:03:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791151255] [2022-12-14 15:03:06,558 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:03:06,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015312245] [2022-12-14 15:03:06,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015312245] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:03:06,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [373737931] [2022-12-14 15:03:06,561 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 15:03:06,561 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:03:06,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:03:06,561 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:03:06,561 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:03:06,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:03:06,661 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:03:06,662 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:06,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,674 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:03:06,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:03:06,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:03:06,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 15:03:06,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:06,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,926 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:03:06,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:06,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:03:07,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:07,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:07,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,066 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:07,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:07,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:07,173 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:07,229 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:03:07,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:03:07,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-12-14 15:03:07,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:07,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,498 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:03:07,526 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:03:07,527 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:03:07,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:03:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:03:07,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2022-12-14 15:03:07,553 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:03:07,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:07,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:03:07,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:03:07,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:03:07,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:07,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,957 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:07,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:07,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:08,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:03:08,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:08,102 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:03:08,103 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:03:08,113 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 36 [2022-12-14 15:03:08,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:03:08,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:03:08,172 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:03:08,394 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 241 for LOIs [2022-12-14 15:03:08,470 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 15:03:21,168 WARN L233 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 239 DAG size of output: 228 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:30,338 WARN L233 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 250 DAG size of output: 240 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:43,018 WARN L233 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:56,164 WARN L233 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 272 DAG size of output: 254 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 15:03:56,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [373737931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:03:56,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-12-14 15:03:56,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2022-12-14 15:03:56,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8618911] [2022-12-14 15:03:56,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:03:56,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-14 15:03:56,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:03:56,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-14 15:03:56,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 15:03:56,712 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-12-14 15:03:59,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:01,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:03,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:05,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:07,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:09,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:11,446 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:13,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:15,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:23,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2022-12-14 15:04:24,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:04:24,452 INFO L93 Difference]: Finished difference Result 267 states and 342 transitions. [2022-12-14 15:04:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-14 15:04:24,452 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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 65 [2022-12-14 15:04:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:04:24,454 INFO L225 Difference]: With dead ends: 267 [2022-12-14 15:04:24,454 INFO L226 Difference]: Without dead ends: 142 [2022-12-14 15:04:24,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 48.2s TimeCoverageRelationStatistics Valid=91, Invalid=172, Unknown=9, NotChecked=0, Total=272 [2022-12-14 15:04:24,455 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.7s IncrementalHoareTripleChecker+Time [2022-12-14 15:04:24,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 641 Invalid, 400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 391 Invalid, 9 Unknown, 0 Unchecked, 27.7s Time] [2022-12-14 15:04:24,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-12-14 15:04:24,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2022-12-14 15:04:24,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 122 states have (on average 1.1885245901639345) internal successors, (145), 132 states have internal predecessors, (145), 17 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (17), 7 states have call predecessors, (17), 17 states have call successors, (17) [2022-12-14 15:04:24,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 179 transitions. [2022-12-14 15:04:24,480 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 179 transitions. Word has length 65 [2022-12-14 15:04:24,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:04:24,480 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 179 transitions. [2022-12-14 15:04:24,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.833333333333333) internal successors, (58), 11 states have internal predecessors, (58), 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) [2022-12-14 15:04:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 179 transitions. [2022-12-14 15:04:24,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-12-14 15:04:24,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:04:24,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:04:24,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:04:24,683 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 15:04:24,684 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:04:24,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:04:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1298103213, now seen corresponding path program 1 times [2022-12-14 15:04:24,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:04:24,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373899137] [2022-12-14 15:04:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:04:24,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:04:24,812 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:04:24,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395988877] [2022-12-14 15:04:24,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:04:24,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:04:24,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:04:24,814 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:04:24,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fac46e14-4573-4675-8897-1997d7a03531/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:04:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:04:25,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 2208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:04:25,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:04:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:04:25,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:04:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 15:04:25,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:04:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373899137] [2022-12-14 15:04:25,669 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:04:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395988877] [2022-12-14 15:04:25,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395988877] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:04:25,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [517356921] [2022-12-14 15:04:25,672 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 15:04:25,673 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:04:25,673 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:04:25,673 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:04:25,673 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:04:25,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:04:25,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,736 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-12-14 15:04:25,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2022-12-14 15:04:25,773 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:04:25,773 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:04:25,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:04:25,794 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 15:04:25,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:04:25,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:04:25,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:25,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 9896990 treesize of output 5376278 [2022-12-14 15:04:26,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9075036 treesize of output 5376290 [2022-12-14 15:04:26,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:04:26,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:04:26,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:04:26,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:04:26,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-12-14 15:04:26,230 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:04:26,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,262 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 32 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075051 treesize of output 5376293 [2022-12-14 15:04:26,286 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-12-14 15:04:26,335 INFO L321 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size [2022-12-14 15:04:26,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 66 [2022-12-14 15:04:26,390 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-12-14 15:04:26,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2022-12-14 15:04:26,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:04:26,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:04:26,495 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:04:26,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 15:04:26,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-12-14 15:04:26,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-12-14 15:04:26,538 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:04:26,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:04:26,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:04:26,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 15:04:26,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 15:04:26,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 15:04:26,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:04:26,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 25 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9075032 treesize of output 5376218 [2022-12-14 15:04:26,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-12-14 15:04:26,825 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-12-14 15:04:27,258 INFO L217 Elim1Store]: Index analysis took 294 ms [2022-12-14 15:04:30,015 INFO L321 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2022-12-14 15:04:30,016 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 10752670 treesize of output 10752673 [2022-12-14 15:04:30,502 INFO L217 Elim1Store]: Index analysis took 368 ms [2022-12-14 15:04:32,120 INFO L321 Elim1Store]: treesize reduction 144, result has 12.7 percent of original size [2022-12-14 15:04:32,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 10752675 treesize of output 10752677 [2022-12-14 15:04:40,120 WARN L233 SmtUtils]: Spent 7.97s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:04:40,121 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 15:04:40,121 INFO L350 Elim1Store]: Elim1 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 1986 treesize of output 1481 [2022-12-14 15:04:57,076 WARN L233 SmtUtils]: Spent 16.87s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:04:57,077 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 15:04:57,077 INFO L350 Elim1Store]: Elim1 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 2005 treesize of output 1829 [2022-12-14 15:04:57,693 INFO L217 Elim1Store]: Index analysis took 432 ms [2022-12-14 15:05:11,674 WARN L233 SmtUtils]: Spent 13.60s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:05:11,675 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-12-14 15:05:11,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-12-14 15:05:12,868 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-12-14 15:05:12,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 73 [2022-12-14 15:05:12,940 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-12-14 15:05:13,331 INFO L217 Elim1Store]: Index analysis took 297 ms [2022-12-14 15:05:13,976 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 15:05:13,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-12-14 15:05:17,650 INFO L217 Elim1Store]: Index analysis took 488 ms